Kathleen O’Neil Smith M.D. is a magna cum laude graduate of Boston University Medical School. She completed an internship in pathology at Massachusetts General Hospital followed by an internship and residency in internal medicine at the Brigham and Women’s Hospital in Boston. In 2008, she completed a two-year fellowship in functional medicine through the American Academy of Anti-Aging and Regenerative Medicine (the subspecialty of bio-identical hormone therapy and primary disease prevention).

Dr. O’Neil Smith has an extensive background in nutrition, applied physiology, and sports medicine. She has been on the faculty at Tufts University School of Medicine and Boston University School of Medicine. For decades she competed as a member, and later coach, of the United States Women’s National Rowing Team. Dr. O’Neil-Smith is an international thought leader in the clinical use of peptide therapy. She is a compassionate, innovative, and conscientious physician.
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