About
Stewart Greisman, MD, FACP, graduated magna cum laude from Cornell University before earning his medical degree from Yale University School of Medicine in 1981. He completed his internship and residency in internal medicine at Yale New Haven Hospital. His fellowship in rheumatic diseases followed at the Hospital for Special Surgery, New York-Presbyterian Hospital, finishing in 1986. He holds board certification from the American Board of Internal Medicine in both internal medicine and rheumatology.
After his fellowship, Dr. Greisman stepped into his father's established Manhattan practice and has served that patient community continuously since 1986. He trained with the ambition of becoming an academic rheumatologist, yet found that caring for the whole person defined his calling. That dual expertise gives his patients direct access to rheumatologic insight within a primary care relationship. He served as Associate Clinical Professor of Medicine/Rheumatology at Columbia University College of Physicians and Surgeons from 1987 to 2014. Since 2014, he has held an appointment as Assistant Clinical Professor Medicine/Rheumatology at the Icahn School of Medicine at Mount Sinai. Castle Connolly, New York Magazine, and the New York Times Magazine have each named him a Top Doctor across multiple years. He also received the Samuel D. Kushlan Award for Patient Care from Yale-New Haven Hospital in 1983. Dr. Greisman is a Fellow of both the American College of Physicians and the American College of Rheumatology.
Education & Training
Undergraduate
Cornell University, College of Arts and Sciences, BA in Biological Sciences and Chemistry, 1977, Magna Cum Laude
Medical School
Yale University School of Medicine, MD, 1981
Residency
Yale New Haven Hospital, Internal Medicine, 1981-1984
Fellowship
Hospital for Special Surgery, New York-Presbyterian Hospital, Rheumatic Diseases, 1984-1986
Additional Training
Associate Clinical Professor of Medicine/Rheumatology, Columbia University College of Physicians and Surgeons, 1987-2014; Assistant Clinical Professor of Medicine/Rheumatology, Icahn School of Medicine at Mount Sinai, 2014-present
Certifications
Conditions Treated
Who is Dr. Greisman right for?
Dr. Greisman is a strong fit for adults seeking a primary care physician with deep rheumatologic expertise. Patients managing arthritis, autoimmune diseases, or sports injuries benefit directly from his dual board certification. He also serves patients who want thorough preventive screenings and a long-term physician relationship. Those who value direct after-hours access and same-day appointments will find his practice well-suited to their needs. His panel carries limited availability, so prospective patients should inquire early.
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Frequently Asked Questions
Dr. Greisman specializes in internal medicine and rheumatology. His clinical focus includes arthritis, autoimmune diseases, sports injuries, and back problems. He also delivers comprehensive preventive screenings and personalized wellness planning. His dual board certification lets him address rheumatologic concerns directly within a primary care relationship.
Yes. Dr. Greisman holds board certification from the American Board of Internal Medicine in both internal medicine and rheumatology. He earned these certifications after training at Yale New Haven Hospital and completing a rheumatic diseases fellowship at the Hospital for Special Surgery, New York-Presbyterian Hospital.
Dr. Greisman earned his medical degree from Yale University School of Medicine in 1981. He completed his internal medicine residency at Yale New Haven Hospital, where he received the Samuel D. Kushlan Award for Patient Care in 1983. He then completed a fellowship in rheumatic diseases at the Hospital for Special Surgery, New York-Presbyterian Hospital, finishing in 1986.
Yes. Dr. Greisman currently holds an appointment as Assistant Clinical Professor of Medicine and Rheumatology at the Icahn School of Medicine at Mount Sinai. He previously served as Associate Clinical Professor of Medicine and Rheumatology at Columbia University College of Physicians and Surgeons from 1987 to 2014.
Yes. Castle Connolly, New York Magazine, and the New York Times Magazine have each named Dr. Greisman a Top Doctor across multiple years. He also holds Fellowship status in both the American College of Physicians and the American College of Rheumatology.
Dr. Greisman affiliates with Mount Sinai West and Lenox Hill Hospital. These affiliations allow him to coordinate hospital-based care for his patients when needed.
Dr. Greisman has practiced continuously on Manhattan's west side since 1986. He took over his father's established internal medicine office that year and has served many of the same patient families ever since.
Yes. Members can reach Dr. Greisman by phone after hours and on weekends. This direct access is a core benefit of the practice's concierge model through MDVIP.
Doctor profile last updated March 21, 2026