We bring together best-in-class professionals across all health domains, to give you the most advanced care available.
A pioneer in digital health innovation and optimization medicine, Dr. Weir has shaped the future of healthcare delivery across America. Prior to leading Rebel Health Alliance's Medical Staff, he developed the functional medicine and hormone optimization protocols used by over 60 clinicians at 10X Health, helped create AI-powered lab analysis systems at Function Health, and designed and launched Amazon's direct-to-consumer telemedicine platform nationwide.
Dr. Weir combines cutting-edge medical knowledge with advanced technology to deliver personalized, optimization-focused care. His comprehensive expertise includes hormone optimization, metabolic health, performance enhancement, and prevention-focused medicine. Licensed in 45 states, he serves our national community with a focus on data-driven strategies for optimal health.
Hyemyung Kim has been a registered dietitian for nearly 15 years, during which she continues to further advance her career by becoming a certified nutrition support clinician and certified lactation consultant. Her career began in clinical dietetics, where she worked with critically ill patients with conditions like diabetes, cardiovascular disease, and gastrointestinal issues.
She later specialized in pediatric and neonatal care, focusing on optimizing growth and nutrition. Her experience working inpatient made her realize that proper nutrition can help to prevent many health issues down the road.
Driven by a passion to emphasize preventative care, Hyemyung now focuses on addressing health issues proactively, promoting a philosophy of adding nutrients rather than restricting them. She believes in empowering clients with nutrition knowledge so they can make healthy choices while still enjoying the foods they love.
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Casey Thomas is a performance dietitian, researcher, and educator specializing in sports nutrition, cognitive performance, and supplementation. As Director of Professional Development for the Sports and Human Performance Nutrition group, he leads initiatives to empower sports nutrition professionals. Casey oversees the nutrition program at 1HP and teaches advanced sports nutrition courses at California State University, Los Angeles, and UCLA Extension. A published author and expert peer reviewer, he frequently shares his expertise at industry conferences. Outside of work, Casey enjoys gaming and spending time outdoors with his wife, baby, and dogs.
Dr. Urcuyo is a top doctor from some of the most respected schools, hospitals, and institutes in the world and a pioneer in the development of virtual medicine and direct healthcare. His unique combination of elite medical training and innovative healthcare delivery expertise makes him a transformative force in modern medicine. Educated and trained at the world-renowned Cleveland Clinic, Dr. Urcuyo completed his medical degree at the Cleveland Clinic Lerner College of Medicine and his residency in Family Medicine at the Cleveland Clinic Foundation. He furthered his expertise by becoming a Certified Practitioner of Functional Medicine at the prestigious Institute for Functional Medicine, studying under luminaires like Dr. Mark Hyman.
Christi Bennett is a certified epigenetics coach and founder of Express Yourself DNA Consulting. With over a decade of experience in the healthcare industry, she helps individuals optimize their well-being by applying the principles of epigenetics - focusing on how lifestyle and environment can influence gene expression. Christi holds dual master’s degrees in business administration and health administration. In addition, she is a power cycle instructor at Lifetime Health and Fitness, where she inspires people to reach their fitness goals. Her mission is to empower others to take control of their health and happiness, fostering positive, lasting change in their lives. She enjoys hiking, outdoor concerts, traveling and spending time with her dogs and college-aged twins.
Jen Dela Cruz is a registered dietitian who tailors recommendations to each client's unique needs—personal preferences, schedule, health history, and goals. As a working mom of two, she understands the challenges of prioritizing healthy habits and focuses on small, sustainable changes that fit into busy lives. Jen holds a degree in Nutritional Science from Penn State and a Master's from California State University, Long Beach. With over 10 years of experience, she specializes in managing chronic conditions like hypertension, diabetes, and obesity. Jen believes food is medicine and is passionate about helping clients improve their relationship with it.
Mackenzie is a Registered Dietitian specializing in the fields of functional nutrition, holistic health, and wellness education. She is passionate about living a toxin-free yet balanced lifestyle, and loves to help others learn how to find confidence in making healthy, sustainable choices for a better quality of life.
Mackenzie received her Bachelors of Science in Dietetics from Point Loma Nazarene University, and has a diverse background as an RDN in environments such as inpatient clinical care, a luxury health resort, as well as a one-on-one private counseling setting. She established her private practice in Orange County, California with a specialty in functional lab testing, gut health & fertility/prenatal nutrition.
Jamie Georginis is a registered nurse with over 12 years of experience. She spent 9 years working as a dedicated NICU nurse before transitioning to a more focused role in pediatric and adolescent wellness. Her personal cancer journey ignited her to engage in various physical, mental and lifestyle changes to improve her overall health. Outside of her professional life, Jamie enjoys time with her husband and little ones, cooking new recipes, and attending concerts.
Meet Demi Tsang, RN MSN, a nurse coordinator with a master's degree in nursing education. Demi has been a registered nurse since 2016, and has experience in medical-surgical acute care, outpatient clinics, and asynchronous functional medicine. Demi is passionate about integrative health and strives to address the root causes of health issues through holistic methods. Outside of her professional life, Demi loves reading, hot yoga, gardening, and running. Her personal interests and dedication to both her career and personal life reflect her holistic approach to health and well-being.
Working as an RN and nationally board-certified Health and Wellness Coach, Viva continued to follow her passion for wellness and fitness completing training to become a certified personal trainer and registered yoga teacher.
With the intention of merging her love of nursing and health and wellness coaching, she later earned board certification as an integrative nurse coach and has most recently become certified as a lifestyle medicine coach.
Viva has founded a wellness business where she assists and empowers others to achieve their health goals, prioritize self care, find balance in their busy lives and incorporate the healing power of a water setting into their wellness routine.
Outside of professional life, Viva enjoys being active outdoors on land and in the water and experimenting with and implementing health optimization and longevity activities including regular sauna and cold plunge, meditation and breathwork.
Meet Courtney Reichart, a registered nurse, with over 13 years of experience. Courtney brings a passion for health and wellness to her career. She spent 8 years working in labor and delivery before transitioning to a more clinical role in the wellness realm. Outside work, Courtney enjoys experimenting with recipes in the kitchen, hanging out with her two young sons and competing in fitness events with her husband.
Meet Jodi Arth, BS, BSN, RN, a Nurse Coordinator with expertise in emergency medicine, nursing leadership, and healthcare systems. Inspired by her own health journey and those she’s cared for, Jodi is passionate about health optimization and longevity medicine. Currently pursuing a psychiatric mental health nurse practitioner degree, she aims to integrate mental health into her practice. Her volunteer work as a crisis counselor has given her unique insights into the connection between mental and physical health. Outside of work, Jodi enjoys traveling, nature, and wellness activities, embracing a holistic approach to health.
Meet Amanda Orozco, an enthusiastic Nurse Coordinator with a rich background in Pediatric Oncology and Home Health. Amanda brings a unique perspective to Rebel Health, combining nearly six years as a Health and Fitness Coach with her medical expertise to enhance patient care. She holds an MBA and has a strong foundation in business administration, further enriching her role. Outside of her professional life, Amanda enjoys spending time with her family, crafting, and watching football. She looks forward to building new relationships and experiences at Rebel Health
Dr. Rachelle Simpson Sweet specializes in neuropsychology, genetics, and holistic wellness. She earned her doctoral degree in Clinical Neuropsychology from NSU and completed a postdoctoral fellowship at Evanston Northwestern. Rachelle is a Certified Health and Wellness Coach and Certified Epigenetic Coach. She integrates mental, emotional, and physical health, leveraging her expertise in psychology and health coaching. Rachelle has presented her research at professional conferences and contributed to several publications, including a book. Passionate about personalized wellness, she enjoys hiking, kayaking, and fishing and is dedicated to inspiring others to prioritize their health.
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Meet Tom Broback, a trusted strength coach and physical therapist. Over his career, Tom has worked as a strength and conditioning coach, orthopedic physical therapist, and virtual physical therapist. He graduated from St. John’s University (MN) with a Bachelor’s in Biology and a Doctorate of Physical Therapy (DPT) from the University of Minnesota in 2017. Tom holds a Certified Strength and Conditioning Specialist (CSCS) and has started his own virtual rehab business. He has spoken at several events, authored multiple ebooks, and hosts his own podcast. His work is featured on SimpliFaster.com, Exercise.com, and several rehab and performance podcasts. Tom is dedicated to helping with any injury recovery and preventative rehab needs.
Meet Erica Mansaray, a Certified Strength and Conditioning Specialist passionate about guiding individuals on their fitness journey. Originally from Cincinnati, Ohio, and now based in Fayetteville, North Carolina, Erica has a background in Sports Management from Mount St. Joseph University, where she also excelled in basketball. Her career includes roles within high school athletics and the 44th Medical Brigade's holistic health team, where she supports soldiers' fitness needs. Erica is committed to empowering clients with empathy and effective training strategies to achieve their personal fitness goals.
Meet Hannah Ball, a seasoned business professional, certified yoga teacher, accomplished writer, and agriculture enthusiast. With her diverse background, Hannah brings a unique blend of skills and passions to her role as our Member Concierge. Hannah's primary focus is onboarding new members, ensuring a seamless transition into our community. She is dedicated to providing personalized assistance and support to members as they begin their journey with Rebel Health Alliance.
With her genuine enthusiasm for connecting with people and her commitment to service excellence, Hannah is poised to make a positive impact on every member's experience with Rebel Health Alliance.
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Meet Natalia Holguin, a registered dietitian nutritionist and certified personal trainer specializing in sports nutrition, mindful eating, and women’s health. Natalia adopts a holistic approach to health, empowering individuals to reach their wellness goals. With a B.S. in Nutrition and Dietetics from Messiah College and postgraduate training at Iowa State University, she blends exercise science with clinical dietetics.
Natalia founded a private practice in Frederick, Maryland, focusing on personalized nutrition and lifestyle coaching. She brings over six years of diverse experience to our team, spanning wellness, sports, clinical nutrition, and fitness on national and international scales.
Meet Drew Hammond, a seasoned strength and conditioning coach with a unique career focused on embedded human performance within special operations and conventional military environments. With a degree in Business Administration from the University of North Carolina at Chapel Hill and a Master of Science in Strength and Conditioning from the University of Edinburgh in Scotland, Drew brings a wealth of knowledge to the team.
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Meet Zach Bilbrey, Head of Human Performance Optimization. For seven years, he's contributed significantly to the Air Force Special Warfare Human Performance team, most notably the Guardian Angel community. Zach's expertise spans diverse athletes, from competitive CrossFit to military special operations and youth. Holding a BS in Exercise Science and a Masters of Education in Counseling and Human Development, he transcends coaching norms.
Certified as a Strength and Conditioning Specialist, Tactical S&C Facilitator, OPEX Coach, and CrossFit Level 1 & 2, Zach's dedication to continuous learning yields remarkable results. Zach Bilbrey fortifies Rebel Health Alliance's mission to unlock individuals' full potential.
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Meet Sarah Leahy, a seasoned Head Coach and Registered Dietitian, with over a decade of experience in health and nutrition. Sarah is deeply passionate to sustainable lifestyle shifts for lifelong wellness and disease prevention. She emphasizes accountability and steadfast support.
Sarah holds a Bachelor of Science in Nutrition and Dietetics from the University of Connecticut and is a Certified Nutrition Support Clinician. With extensive experience in clinical nutrition and medical therapy, Sarah offers compassionate, patient-centered care. Join her in crafting a fulfilling, healthier life, where positive, sustainable habits pave the way for optimal health and vitality.
Meet Laurie Kaplan, Certified Epigenetic Coach and Registered Dietitian. Laurie’s aim is to lead clients to calm clarity through personalized nutrition and lifestyle plans tailored to their genetics and life goals. Her mission cuts through noise, guiding individuals to thrive by honoring their DNA truth.
A mother of two college-age boys and a farm manager, Laurie recently conquered "the world's toughest horse race," The Gaucho Derby in Patagonia. A drummer in multiple bands, she inspires others to embrace passions. With contagious enthusiasm, Laurie allies with you on the journey to holistic well-being and fulfillment.
Meet Amber Karichko, a registered nurse, personal trainer, wife, and mother to two "littles." Her holistic care journey focuses on mental, physical, emotional, and spiritual well-being. Amber's passion for health, nutrition, and fitness ignited during her late teens after witnessing her parents' heart attacks, inspiring her to help others adopt healthier lifestyles.
With a bachelor's degree in nursing, she began her career treating children with mental health issues before transitioning to holistic care and obtaining her personal training certification, with ongoing certification in Fertility Health Coaching. Amber will be your ally on the journey towards empowerment, strength, confidence, and resilience.
A pioneer in digital health innovation and optimization medicine, Dr. Weir has shaped the future of healthcare delivery across America. Prior to leading Rebel Health Alliance's Medical Staff, he developed the functional medicine and hormone optimization protocols used by over 60 clinicians at 10X Health, helped create AI-powered lab analysis systems at Function Health, and designed and launched Amazon's direct-to-consumer telemedicine platform nationwide.
Dr. Weir combines cutting-edge medical knowledge with advanced technology to deliver personalized, optimization-focused care. His comprehensive expertise includes hormone optimization, metabolic health, performance enhancement, and prevention-focused medicine. Licensed in 45 states, he serves our national community with a focus on data-driven strategies for optimal health.
Hyemyung Kim has been a registered dietitian for nearly 15 years, during which she continues to further advance her career by becoming a certified nutrition support clinician and certified lactation consultant. Her career began in clinical dietetics, where she worked with critically ill patients with conditions like diabetes, cardiovascular disease, and gastrointestinal issues.
She later specialized in pediatric and neonatal care, focusing on optimizing growth and nutrition. Her experience working inpatient made her realize that proper nutrition can help to prevent many health issues down the road.
Driven by a passion to emphasize preventative care, Hyemyung now focuses on addressing health issues proactively, promoting a philosophy of adding nutrients rather than restricting them. She believes in empowering clients with nutrition knowledge so they can make healthy choices while still enjoying the foods they love.
Casey Thomas is a performance dietitian, researcher, and educator specializing in sports nutrition, cognitive performance, and supplementation. As Director of Professional Development for the Sports and Human Performance Nutrition group, he leads initiatives to empower sports nutrition professionals. Casey oversees the nutrition program at 1HP and teaches advanced sports nutrition courses at California State University, Los Angeles, and UCLA Extension. A published author and expert peer reviewer, he frequently shares his expertise at industry conferences. Outside of work, Casey enjoys gaming and spending time outdoors with his wife, baby, and dogs.
Dr. Urcuyo is a top doctor from some of the most respected schools, hospitals, and institutes in the world and a pioneer in the development of virtual medicine and direct healthcare. His unique combination of elite medical training and innovative healthcare delivery expertise makes him a transformative force in modern medicine. Educated and trained at the world-renowned Cleveland Clinic, Dr. Urcuyo completed his medical degree at the Cleveland Clinic Lerner College of Medicine and his residency in Family Medicine at the Cleveland Clinic Foundation. He furthered his expertise by becoming a Certified Practitioner of Functional Medicine at the prestigious Institute for Functional Medicine, studying under luminaires like Dr. Mark Hyman.
Christi Bennett is a certified epigenetics coach and founder of Express Yourself DNA Consulting. With over a decade of experience in the healthcare industry, she helps individuals optimize their well-being by applying the principles of epigenetics - focusing on how lifestyle and environment can influence gene expression. Christi holds dual master’s degrees in business administration and health administration. In addition, she is a power cycle instructor at Lifetime Health and Fitness, where she inspires people to reach their fitness goals. Her mission is to empower others to take control of their health and happiness, fostering positive, lasting change in their lives. She enjoys hiking, outdoor concerts, traveling and spending time with her dogs and college-aged twins.
Jen Dela Cruz is a registered dietitian who tailors recommendations to each client's unique needs—personal preferences, schedule, health history, and goals. As a working mom of two, she understands the challenges of prioritizing healthy habits and focuses on small, sustainable changes that fit into busy lives. Jen holds a degree in Nutritional Science from Penn State and a Master's from California State University, Long Beach. With over 10 years of experience, she specializes in managing chronic conditions like hypertension, diabetes, and obesity. Jen believes food is medicine and is passionate about helping clients improve their relationship with it.
Mackenzie is a Registered Dietitian specializing in the fields of functional nutrition, holistic health, and wellness education. She is passionate about living a toxin-free yet balanced lifestyle, and loves to help others learn how to find confidence in making healthy, sustainable choices for a better quality of life.
Mackenzie received her Bachelors of Science in Dietetics from Point Loma Nazarene University, and has a diverse background as an RDN in environments such as inpatient clinical care, a luxury health resort, as well as a one-on-one private counseling setting. She established her private practice in Orange County, California with a specialty in functional lab testing, gut health & fertility/prenatal nutrition.
Jamie Georginis is a registered nurse with over 12 years of experience. She spent 9 years working as a dedicated NICU nurse before transitioning to a more focused role in pediatric and adolescent wellness. Her personal cancer journey ignited her to engage in various physical, mental and lifestyle changes to improve her overall health. Outside of her professional life, Jamie enjoys time with her husband and little ones, cooking new recipes, and attending concerts.
Meet Demi Tsang, RN MSN, a nurse coordinator with a master's degree in nursing education. Demi has been a registered nurse since 2016, and has experience in medical-surgical acute care, outpatient clinics, and asynchronous functional medicine. Demi is passionate about integrative health and strives to address the root causes of health issues through holistic methods. Outside of her professional life, Demi loves reading, hot yoga, gardening, and running. Her personal interests and dedication to both her career and personal life reflect her holistic approach to health and well-being.
Working as an RN and nationally board-certified Health and Wellness Coach, Viva continued to follow her passion for wellness and fitness completing training to become a certified personal trainer and registered yoga teacher.
With the intention of merging her love of nursing and health and wellness coaching, she later earned board certification as an integrative nurse coach and has most recently become certified as a lifestyle medicine coach.
Viva has founded a wellness business where she assists and empowers others to achieve their health goals, prioritize self care, find balance in their busy lives and incorporate the healing power of a water setting into their wellness routine.
Outside of professional life, Viva enjoys being active outdoors on land and in the water and experimenting with and implementing health optimization and longevity activities including regular sauna and cold plunge, meditation and breathwork.
Meet Courtney Reichart, a registered nurse, with over 13 years of experience. Courtney brings a passion for health and wellness to her career. She spent 8 years working in labor and delivery before transitioning to a more clinical role in the wellness realm. Outside work, Courtney enjoys experimenting with recipes in the kitchen, hanging out with her two young sons and competing in fitness events with her husband.
Meet Jodi Arth, BS, BSN, RN, a Nurse Coordinator with expertise in emergency medicine, nursing leadership, and healthcare systems. Inspired by her own health journey and those she’s cared for, Jodi is passionate about health optimization and longevity medicine. Currently pursuing a psychiatric mental health nurse practitioner degree, she aims to integrate mental health into her practice. Her volunteer work as a crisis counselor has given her unique insights into the connection between mental and physical health. Outside of work, Jodi enjoys traveling, nature, and wellness activities, embracing a holistic approach to health.
Meet Amanda Orozco, an enthusiastic Nurse Coordinator with a rich background in Pediatric Oncology and Home Health. Amanda brings a unique perspective to Rebel Health, combining nearly six years as a Health and Fitness Coach with her medical expertise to enhance patient care. She holds an MBA and has a strong foundation in business administration, further enriching her role. Outside of her professional life, Amanda enjoys spending time with her family, crafting, and watching football. She looks forward to building new relationships and experiences at Rebel Health
Dr. Rachelle Simpson Sweet specializes in neuropsychology, genetics, and holistic wellness. She earned her doctoral degree in Clinical Neuropsychology from NSU and completed a postdoctoral fellowship at Evanston Northwestern. Rachelle is a Certified Health and Wellness Coach and Certified Epigenetic Coach. She integrates mental, emotional, and physical health, leveraging her expertise in psychology and health coaching. Rachelle has presented her research at professional conferences and contributed to several publications, including a book. Passionate about personalized wellness, she enjoys hiking, kayaking, and fishing and is dedicated to inspiring others to prioritize their health.
Meet Tom Broback, a trusted strength coach and physical therapist. Over his career, Tom has worked as a strength and conditioning coach, orthopedic physical therapist, and virtual physical therapist. He graduated from St. John’s University (MN) with a Bachelor’s in Biology and a Doctorate of Physical Therapy (DPT) from the University of Minnesota in 2017. Tom holds a Certified Strength and Conditioning Specialist (CSCS) and has started his own virtual rehab business. He has spoken at several events, authored multiple ebooks, and hosts his own podcast. His work is featured on SimpliFaster.com, Exercise.com, and several rehab and performance podcasts. Tom is dedicated to helping with any injury recovery and preventative rehab needs.
Meet Erica Mansaray, a Certified Strength and Conditioning Specialist passionate about guiding individuals on their fitness journey. Originally from Cincinnati, Ohio, and now based in Fayetteville, North Carolina, Erica has a background in Sports Management from Mount St. Joseph University, where she also excelled in basketball. Her career includes roles within high school athletics and the 44th Medical Brigade's holistic health team, where she supports soldiers' fitness needs. Erica is committed to empowering clients with empathy and effective training strategies to achieve their personal fitness goals.
Meet Hannah Ball, a seasoned business professional, certified yoga teacher, accomplished writer, and agriculture enthusiast. With her diverse background, Hannah brings a unique blend of skills and passions to her role as our Member Concierge. Hannah's primary focus is onboarding new members, ensuring a seamless transition into our community. She is dedicated to providing personalized assistance and support to members as they begin their journey with Rebel Health Alliance.
With her genuine enthusiasm for connecting with people and her commitment to service excellence, Hannah is poised to make a positive impact on every member's experience with Rebel Health Alliance.
Meet Natalia Holguin, a registered dietitian nutritionist and certified personal trainer specializing in sports nutrition, mindful eating, and women’s health. Natalia adopts a holistic approach to health, empowering individuals to reach their wellness goals. With a B.S. in Nutrition and Dietetics from Messiah College and postgraduate training at Iowa State University, she blends exercise science with clinical dietetics.
Natalia founded a private practice in Frederick, Maryland, focusing on personalized nutrition and lifestyle coaching. She brings over six years of diverse experience to our team, spanning wellness, sports, clinical nutrition, and fitness on national and international scales.
Meet Drew Hammond, a seasoned strength and conditioning coach with a unique career focused on embedded human performance within special operations and conventional military environments. With a degree in Business Administration from the University of North Carolina at Chapel Hill and a Master of Science in Strength and Conditioning from the University of Edinburgh in Scotland, Drew brings a wealth of knowledge to the team.
Meet Zach Bilbrey, Head of Human Performance Optimization. For seven years, he's contributed significantly to the Air Force Special Warfare Human Performance team, most notably the Guardian Angel community. Zach's expertise spans diverse athletes, from competitive CrossFit to military special operations and youth. Holding a BS in Exercise Science and a Masters of Education in Counseling and Human Development, he transcends coaching norms.
Certified as a Strength and Conditioning Specialist, Tactical S&C Facilitator, OPEX Coach, and CrossFit Level 1 & 2, Zach's dedication to continuous learning yields remarkable results. Zach Bilbrey fortifies Rebel Health Alliance's mission to unlock individuals' full potential.
Meet Sarah Leahy, a seasoned Head Coach and Registered Dietitian, with over a decade of experience in health and nutrition. Sarah is deeply passionate to sustainable lifestyle shifts for lifelong wellness and disease prevention. She emphasizes accountability and steadfast support.
Sarah holds a Bachelor of Science in Nutrition and Dietetics from the University of Connecticut and is a Certified Nutrition Support Clinician. With extensive experience in clinical nutrition and medical therapy, Sarah offers compassionate, patient-centered care. Join her in crafting a fulfilling, healthier life, where positive, sustainable habits pave the way for optimal health and vitality.
Meet Laurie Kaplan, Certified Epigenetic Coach and Registered Dietitian. Laurie’s aim is to lead clients to calm clarity through personalized nutrition and lifestyle plans tailored to their genetics and life goals. Her mission cuts through noise, guiding individuals to thrive by honoring their DNA truth.
A mother of two college-age boys and a farm manager, Laurie recently conquered "the world's toughest horse race," The Gaucho Derby in Patagonia. A drummer in multiple bands, she inspires others to embrace passions. With contagious enthusiasm, Laurie allies with you on the journey to holistic well-being and fulfillment.
Meet Amber Karichko, a registered nurse, personal trainer, wife, and mother to two "littles." Her holistic care journey focuses on mental, physical, emotional, and spiritual well-being. Amber's passion for health, nutrition, and fitness ignited during her late teens after witnessing her parents' heart attacks, inspiring her to help others adopt healthier lifestyles.
With a bachelor's degree in nursing, she began her career treating children with mental health issues before transitioning to holistic care and obtaining her personal training certification, with ongoing certification in Fertility Health Coaching. Amber will be your ally on the journey towards empowerment, strength, confidence, and resilience.
A pioneer in digital health innovation and optimization medicine, Dr. Weir has shaped the future of healthcare delivery across America. Prior to leading Rebel Health Alliance's Medical Staff, he developed the functional medicine and hormone optimization protocols used by over 60 clinicians at 10X Health, helped create AI-powered lab analysis systems at Function Health, and designed and launched Amazon's direct-to-consumer telemedicine platform nationwide.
Dr. Weir combines cutting-edge medical knowledge with advanced technology to deliver personalized, optimization-focused care. His comprehensive expertise includes hormone optimization, metabolic health, performance enhancement, and prevention-focused medicine. Licensed in 45 states, he serves our national community with a focus on data-driven strategies for optimal health.
Hyemyung Kim has been a registered dietitian for nearly 15 years, during which she continues to further advance her career by becoming a certified nutrition support clinician and certified lactation consultant. Her career began in clinical dietetics, where she worked with critically ill patients with conditions like diabetes, cardiovascular disease, and gastrointestinal issues.
She later specialized in pediatric and neonatal care, focusing on optimizing growth and nutrition. Her experience working inpatient made her realize that proper nutrition can help to prevent many health issues down the road.
Driven by a passion to emphasize preventative care, Hyemyung now focuses on addressing health issues proactively, promoting a philosophy of adding nutrients rather than restricting them. She believes in empowering clients with nutrition knowledge so they can make healthy choices while still enjoying the foods they love.
Casey Thomas is a performance dietitian, researcher, and educator specializing in sports nutrition, cognitive performance, and supplementation. As Director of Professional Development for the Sports and Human Performance Nutrition group, he leads initiatives to empower sports nutrition professionals. Casey oversees the nutrition program at 1HP and teaches advanced sports nutrition courses at California State University, Los Angeles, and UCLA Extension. A published author and expert peer reviewer, he frequently shares his expertise at industry conferences. Outside of work, Casey enjoys gaming and spending time outdoors with his wife, baby, and dogs.
Dr. Urcuyo is a top doctor from some of the most respected schools, hospitals, and institutes in the world and a pioneer in the development of virtual medicine and direct healthcare. His unique combination of elite medical training and innovative healthcare delivery expertise makes him a transformative force in modern medicine. Educated and trained at the world-renowned Cleveland Clinic, Dr. Urcuyo completed his medical degree at the Cleveland Clinic Lerner College of Medicine and his residency in Family Medicine at the Cleveland Clinic Foundation. He furthered his expertise by becoming a Certified Practitioner of Functional Medicine at the prestigious Institute for Functional Medicine, studying under luminaires like Dr. Mark Hyman.
Christi Bennett is a certified epigenetics coach and founder of Express Yourself DNA Consulting. With over a decade of experience in the healthcare industry, she helps individuals optimize their well-being by applying the principles of epigenetics - focusing on how lifestyle and environment can influence gene expression. Christi holds dual master’s degrees in business administration and health administration. In addition, she is a power cycle instructor at Lifetime Health and Fitness, where she inspires people to reach their fitness goals. Her mission is to empower others to take control of their health and happiness, fostering positive, lasting change in their lives. She enjoys hiking, outdoor concerts, traveling and spending time with her dogs and college-aged twins.
Jen Dela Cruz is a registered dietitian who tailors recommendations to each client's unique needs—personal preferences, schedule, health history, and goals. As a working mom of two, she understands the challenges of prioritizing healthy habits and focuses on small, sustainable changes that fit into busy lives. Jen holds a degree in Nutritional Science from Penn State and a Master's from California State University, Long Beach. With over 10 years of experience, she specializes in managing chronic conditions like hypertension, diabetes, and obesity. Jen believes food is medicine and is passionate about helping clients improve their relationship with it.
Mackenzie is a Registered Dietitian specializing in the fields of functional nutrition, holistic health, and wellness education. She is passionate about living a toxin-free yet balanced lifestyle, and loves to help others learn how to find confidence in making healthy, sustainable choices for a better quality of life.
Mackenzie received her Bachelors of Science in Dietetics from Point Loma Nazarene University, and has a diverse background as an RDN in environments such as inpatient clinical care, a luxury health resort, as well as a one-on-one private counseling setting. She established her private practice in Orange County, California with a specialty in functional lab testing, gut health & fertility/prenatal nutrition.
Jamie Georginis is a registered nurse with over 12 years of experience. She spent 9 years working as a dedicated NICU nurse before transitioning to a more focused role in pediatric and adolescent wellness. Her personal cancer journey ignited her to engage in various physical, mental and lifestyle changes to improve her overall health. Outside of her professional life, Jamie enjoys time with her husband and little ones, cooking new recipes, and attending concerts.
Meet Demi Tsang, RN MSN, a nurse coordinator with a master's degree in nursing education. Demi has been a registered nurse since 2016, and has experience in medical-surgical acute care, outpatient clinics, and asynchronous functional medicine. Demi is passionate about integrative health and strives to address the root causes of health issues through holistic methods. Outside of her professional life, Demi loves reading, hot yoga, gardening, and running. Her personal interests and dedication to both her career and personal life reflect her holistic approach to health and well-being.
Working as an RN and nationally board-certified Health and Wellness Coach, Viva continued to follow her passion for wellness and fitness completing training to become a certified personal trainer and registered yoga teacher.
With the intention of merging her love of nursing and health and wellness coaching, she later earned board certification as an integrative nurse coach and has most recently become certified as a lifestyle medicine coach.
Viva has founded a wellness business where she assists and empowers others to achieve their health goals, prioritize self care, find balance in their busy lives and incorporate the healing power of a water setting into their wellness routine.
Outside of professional life, Viva enjoys being active outdoors on land and in the water and experimenting with and implementing health optimization and longevity activities including regular sauna and cold plunge, meditation and breathwork.
Meet Courtney Reichart, a registered nurse, with over 13 years of experience. Courtney brings a passion for health and wellness to her career. She spent 8 years working in labor and delivery before transitioning to a more clinical role in the wellness realm. Outside work, Courtney enjoys experimenting with recipes in the kitchen, hanging out with her two young sons and competing in fitness events with her husband.
Meet Jodi Arth, BS, BSN, RN, a Nurse Coordinator with expertise in emergency medicine, nursing leadership, and healthcare systems. Inspired by her own health journey and those she’s cared for, Jodi is passionate about health optimization and longevity medicine. Currently pursuing a psychiatric mental health nurse practitioner degree, she aims to integrate mental health into her practice. Her volunteer work as a crisis counselor has given her unique insights into the connection between mental and physical health. Outside of work, Jodi enjoys traveling, nature, and wellness activities, embracing a holistic approach to health.
Meet Amanda Orozco, an enthusiastic Nurse Coordinator with a rich background in Pediatric Oncology and Home Health. Amanda brings a unique perspective to Rebel Health, combining nearly six years as a Health and Fitness Coach with her medical expertise to enhance patient care. She holds an MBA and has a strong foundation in business administration, further enriching her role. Outside of her professional life, Amanda enjoys spending time with her family, crafting, and watching football. She looks forward to building new relationships and experiences at Rebel Health
Dr. Rachelle Simpson Sweet specializes in neuropsychology, genetics, and holistic wellness. She earned her doctoral degree in Clinical Neuropsychology from NSU and completed a postdoctoral fellowship at Evanston Northwestern. Rachelle is a Certified Health and Wellness Coach and Certified Epigenetic Coach. She integrates mental, emotional, and physical health, leveraging her expertise in psychology and health coaching. Rachelle has presented her research at professional conferences and contributed to several publications, including a book. Passionate about personalized wellness, she enjoys hiking, kayaking, and fishing and is dedicated to inspiring others to prioritize their health.
Meet Tom Broback, a trusted strength coach and physical therapist. Over his career, Tom has worked as a strength and conditioning coach, orthopedic physical therapist, and virtual physical therapist. He graduated from St. John’s University (MN) with a Bachelor’s in Biology and a Doctorate of Physical Therapy (DPT) from the University of Minnesota in 2017. Tom holds a Certified Strength and Conditioning Specialist (CSCS) and has started his own virtual rehab business. He has spoken at several events, authored multiple ebooks, and hosts his own podcast. His work is featured on SimpliFaster.com, Exercise.com, and several rehab and performance podcasts. Tom is dedicated to helping with any injury recovery and preventative rehab needs.
Meet Erica Mansaray, a Certified Strength and Conditioning Specialist passionate about guiding individuals on their fitness journey. Originally from Cincinnati, Ohio, and now based in Fayetteville, North Carolina, Erica has a background in Sports Management from Mount St. Joseph University, where she also excelled in basketball. Her career includes roles within high school athletics and the 44th Medical Brigade's holistic health team, where she supports soldiers' fitness needs. Erica is committed to empowering clients with empathy and effective training strategies to achieve their personal fitness goals.
Meet Hannah Ball, a seasoned business professional, certified yoga teacher, accomplished writer, and agriculture enthusiast. With her diverse background, Hannah brings a unique blend of skills and passions to her role as our Member Concierge. Hannah's primary focus is onboarding new members, ensuring a seamless transition into our community. She is dedicated to providing personalized assistance and support to members as they begin their journey with Rebel Health Alliance.
With her genuine enthusiasm for connecting with people and her commitment to service excellence, Hannah is poised to make a positive impact on every member's experience with Rebel Health Alliance.
Meet Natalia Holguin, a registered dietitian nutritionist and certified personal trainer specializing in sports nutrition, mindful eating, and women’s health. Natalia adopts a holistic approach to health, empowering individuals to reach their wellness goals. With a B.S. in Nutrition and Dietetics from Messiah College and postgraduate training at Iowa State University, she blends exercise science with clinical dietetics.
Natalia founded a private practice in Frederick, Maryland, focusing on personalized nutrition and lifestyle coaching. She brings over six years of diverse experience to our team, spanning wellness, sports, clinical nutrition, and fitness on national and international scales.
Meet Drew Hammond, a seasoned strength and conditioning coach with a unique career focused on embedded human performance within special operations and conventional military environments. With a degree in Business Administration from the University of North Carolina at Chapel Hill and a Master of Science in Strength and Conditioning from the University of Edinburgh in Scotland, Drew brings a wealth of knowledge to the team.
Meet Zach Bilbrey, Head of Human Performance Optimization. For seven years, he's contributed significantly to the Air Force Special Warfare Human Performance team, most notably the Guardian Angel community. Zach's expertise spans diverse athletes, from competitive CrossFit to military special operations and youth. Holding a BS in Exercise Science and a Masters of Education in Counseling and Human Development, he transcends coaching norms.
Certified as a Strength and Conditioning Specialist, Tactical S&C Facilitator, OPEX Coach, and CrossFit Level 1 & 2, Zach's dedication to continuous learning yields remarkable results. Zach Bilbrey fortifies Rebel Health Alliance's mission to unlock individuals' full potential.
Meet Sarah Leahy, a seasoned Head Coach and Registered Dietitian, with over a decade of experience in health and nutrition. Sarah is deeply passionate to sustainable lifestyle shifts for lifelong wellness and disease prevention. She emphasizes accountability and steadfast support.
Sarah holds a Bachelor of Science in Nutrition and Dietetics from the University of Connecticut and is a Certified Nutrition Support Clinician. With extensive experience in clinical nutrition and medical therapy, Sarah offers compassionate, patient-centered care. Join her in crafting a fulfilling, healthier life, where positive, sustainable habits pave the way for optimal health and vitality.
Meet Laurie Kaplan, Certified Epigenetic Coach and Registered Dietitian. Laurie’s aim is to lead clients to calm clarity through personalized nutrition and lifestyle plans tailored to their genetics and life goals. Her mission cuts through noise, guiding individuals to thrive by honoring their DNA truth.
A mother of two college-age boys and a farm manager, Laurie recently conquered "the world's toughest horse race," The Gaucho Derby in Patagonia. A drummer in multiple bands, she inspires others to embrace passions. With contagious enthusiasm, Laurie allies with you on the journey to holistic well-being and fulfillment.
Meet Amber Karichko, a registered nurse, personal trainer, wife, and mother to two "littles." Her holistic care journey focuses on mental, physical, emotional, and spiritual well-being. Amber's passion for health, nutrition, and fitness ignited during her late teens after witnessing her parents' heart attacks, inspiring her to help others adopt healthier lifestyles.
With a bachelor's degree in nursing, she began her career treating children with mental health issues before transitioning to holistic care and obtaining her personal training certification, with ongoing certification in Fertility Health Coaching. Amber will be your ally on the journey towards empowerment, strength, confidence, and resilience.
