Christopher J. Riegel, M.D.
Board-Certified OB/GYN | Hormone Specialist — A pioneer in bioidentical hormone replacement therapy with over 30+ years of dedicated expertise.

A Career Dedicated to Hormonal Health
Christopher J. Riegel, M.D., is one of the nation's foremost authorities on bioidentical hormone replacement therapy. A board-certified OB/GYN who has focused on hormones his entire career, Dr. Riegel began with four years of hormone research at UT Southwestern Medical School before entering clinical practice, giving him a foundation in hormonal science that few practitioners possess.
Dr. Riegel had a groundbreaking idea: treat women with hormones the same way men are treated. No one had ever done it before. After years of dedicated research, studying which hormones to use, in what concentrations, and at what dosages — Dr. Riegel developed what became his original hormone formula. That work eventually grew into approximately 40 proprietary bioidentical hormone formulations that he has refined over the past 20+ years.
These formulas are exclusively available to Dr. Riegel's patients. No other practitioner has access to them. Others have tried to copy his work, but they always fail. The proof is in the results: thousands of patients across the country willingly pay out-of-pocket for Dr. Riegel's hormones because nothing else delivers the same outcomes.
Philosophy of Care
Dr. Riegel's approach to medicine is rooted in a fundamental belief: hormone depletion is not simply a natural consequence of aging to be accepted — it is a treatable condition that, when left unaddressed, can lead to serious diseases and a diminished quality of life.
His research has demonstrated clear connections between hormonal decline and conditions including cardiovascular disease, osteoporosis, cognitive decline, mood disorders, and metabolic dysfunction. By restoring hormones to optimal levels using bioidentical formulations, Dr. Riegel helps patients not only feel better today but protect their health for years to come.
Every patient at The Riegel Center receives a comprehensive evaluation including advanced hormone testing, a thorough medical history review, and a detailed discussion of symptoms and goals. This information forms the foundation of a truly personalized treatment plan designed to restore optimal hormonal balance.
Education & Training
Credentials & Expertise
Board-Certified OB/GYN
American Board of Obstetrics and Gynecology
Hormone Research Pioneer
4 years of hormone research at UT Southwestern Medical School before entering clinical practice
30+ Years Experience
A career-long focus on reproductive endocrinology and hormone medicine
~40 Proprietary Formulas
Exclusive bioidentical hormone formulations available only to his patients — no other practitioner has them
Thousands of Patients
Patients nationwide choose to pay out-of-pocket for Dr. Riegel's proven hormones
Nationwide Practice
Serving patients across the United States via telehealth
Schedule a Consultation with Dr. Riegel
Experience the difference of truly personalized hormone therapy from one of the nation's leading specialists.
In-office (Plano, TX) and telehealth appointments available
