Raphael Kellman, M.D. is a renowned integrative medicine expert with an impressive background in internal medicine and functional medicine. He received his medical education from Albert Einstein College of Medicine in New York and has completed post-graduate training in internal medicine from Beth Israel, Lenox Hill, and St. John's Hospitals. Furthermore, Kellman has studied cancer research at Sloan Kettering Memorial Hospital.

Dr. Kellman combines a holistic and integrative approach to the diagnosis and treatment of various health conditions. He uses natural compounds, vitamins, and medicines to alleviate symptoms, reduce suffering, and also address the deeper cause of the disease. Through his vast understanding of natural compounds, he uncovers the underlying reasons for medical problems.

Dr. Kellman is known for his in-depth testing approaches, such as the thyroid TRH stimulation test. He has discovered that a considerable percentage of patients with chronic fatigue syndrome, autism, and fatigue have a low thyroid that routine tests typically miss.

Kellman has also authored several books, including Gut Reactions, Matrix Healing, and The Microbiome Diet, which have garnered immense recognition. Additionally, he has been a frequent guest in documentaries by Gary Null, and his weekly program on WEVD Radio, "Alternative Medicine Review," was popular among wellness enthusiasts. He has also been a guest on numerous radio and TV talk shows, including WNBC-TV News, WCBS-TV News, PBS, and MSG Metro-Health.

Kellman is currently practicing integrative and functional medicine at the Kellman Center for Integrative and Functional Medicine. He previously served as the Medical Director at the New York Center for Addiction Treatment Services and Holistic Medical Director at Health Check.