Gregory M. McWilliams, M.D.

Dr. Greg McWilliams is an internist whose practice is rooted in broad diagnostic thinking, complex care coordination, and building sincere, long-term relationships with his patients. His clinical interests include preventive medicine, LGBT health, HIV pre-exposure prophylaxis (PrEP), and mental health in the primary care setting.

Dr. McWilliams received his B.A. cum laude in Biology from Harvard University and his M.D. from Georgetown University School of Medicine. He completed his residency in Internal Medicine with a focus in Primary Care at New York-Presbyterian Weill Cornell Medical Center. He lives in New York City with his partner Scott and their rescue dog Mango.

He is scheduled to start with Harley Street Medical in the summer of 2026.