OsteoScan USA is proud to collaborate with the world’s foremost REMS clinicians and bone health authorities.
Together, we bring an unparalleled depth of insight into bone health—revealing not just bone density but also bone quality, resilience, and fracture risk. Our collaborative approach reflects a new standard in proactive musculoskeletal health and longevity-focused care.
Dr. Kimberly Zambito, MD
Orthopedic Surgeon • Hand Specialist • Bone Health Consultant
Dr. Kimberly Zambito is a board-certified orthopedic surgeon and hand specialist, recognized as the first physician to introduce Echolight REMS technology in the U.S. She developed a comprehensive bone health program, founded Qualis Os (providing REMS bone health evaluations and personalized consultations), and has published widely across orthopedics and exercise science.
- Board-certified orthopedic surgeon with a subspecialty in hand surgery
- United States Army Veteran
- Pioneer of REMS in the U.S.
- Speaker, educator, and consultant in bone health
- Fellow of the AAOS and AOA
- Founder of Qualis Os, providing REMS bone health evaluations and personalized consultations
Dr. Matthew Vogt
Regenerative Orthopedic Medicine • Bone Health Consultant
Dr. Matthew Vogt is a board-certified family medicine physician with fellowship certification in sports medicine. He specializes in both regenerative orthopedic medicine and bone health, and he is a member of IIMHE (International Institute for Musculoskeletal Health Education). Recognizing the need for the accurate assessment of bone health, Dr. Vogt was among the earliest adopters of Echolight REMS bone density scanning in the United States. He is the cofounder of OsteoSmart, founder of SmartLife Medicine, and Medical Director of True Path Imaging, based in Hinsdale, Illinois. His primary focus at OsteoSmart is to help his patients understand their true bone health through REMS bone density scans. He incorporates non-pharmaceutical treatment methods in the management of osteoporosis by taking advantage of the body's own healing and repair mechanisms and by promoting sound nutrition, supplementation, and load-bearing exercise. Dr. Vogt is committed to providing exceptional and innovative care.
Dr. Heidi Queen, MD, MPH
Concierge Medicine and Certified Menopause Practioner
Dr. Heidi Queen brings more than 25 years of medical experience and a global perspective to patient care, having practiced in 10 countries around the world. She earned both her MD and Master of Public Health degrees from Boston University School of Medicine and completed her Emergency Medicine residency at Harbor-UCLA Medical Center, one of the nation’s leading trauma centers. She later served on the faculty at Stanford University Medical Center and taught at UCSF School of Medicine.
For over 20 years, Dr. Queen has cared for patients throughout the Bay Area, building strong relationships with leading specialists to ensure comprehensive, coordinated care. She is also a founding member and two-time participant in Bike Zambia, the largest charitable AIDS ride in Africa.
Dr. Queen combines the best of conventional and Functional Medicine, focusing on identifying and addressing the root causes of illness through personalized care, nutrition, lifestyle medicine, and evidence-based therapies. As a Certified Menopause Practitioner through The Menopause Society, she has advanced training in menopause, hormone health, and healthy aging.
She maintains a concierge medicine and menopause-focused medical practice in Mill Valley, where she provides highly personalized care to help patients optimize their health and well-being throughout every stage of life.
She has a special interest in osteoporosis prevention, bone health, longevity medicine, and helping patients maintain strength, vitality, and independence throughout life. Dr. Queen is dedicated to empowering her patients with the knowledge and tools they need to achieve optimal health and long-term wellness.
Dr. Nick Birch, MB BS, FRCS (Orth)
Consultant Orthopedic Spine & Bone Health Specialist
Dr. Nick Birch has over 35 years of experience in musculoskeletal and spinal health. He introduced REMS to the UK in 2018 and now leads a successful nationwide bone health service. An author of 36 scientific papers and past Spinal Editor of the Bone & Joint Journal, he is widely recognized for his proactive, preventive approach to bone and spinal
care.
- Consultant in spine and bone health with 35+ years of clinical practice
- Fellow of the Royal College of Surgeons
- Author of 36 peer-reviewed publications
- Past Spinal Editor for the Bone & Joint Journal
- Member of the International Society for Clinical Densitometry and the Bone Ultrasound Society
- Founder of OsteoScan UK and IIMHE co-founder
Marsha Samuels, OsteoScan USA Founder
Marsha Samuels is an entrepreneur, strategic operations consultant, and collaboration architect with more than 30 years of leadership spanning financial services, tax strategy, and integrative healthcare. After founding and successfully leading a financial advisory and mortgage brokerage firm, she transitioned into healthcare consulting—bringing rigorous business discipline, operational excellence, and systems thinking to modern medical practices.
Her work in healthcare became deeply personal when she discovered advanced, radiation-free bone health technology that had a profound impact on her own health. Recognizing the critical gaps in early detection, patient education, and proactive assessment, she founded OsteoScan USA in 2025. The organization is dedicated to advancing proactive bone health through innovative diagnostic solutions and empowering individuals to take ownership of their long-term skeletal and metabolic health.
