3 Washington Circle NW DC 20037
p. 202.887.4769  •  f. 202.223.2552
Mark M. Sklar, M.D., F.A.C.P., E.C.N.U., F.A.C.E.
3 Washington Circle  |  Washington, D.C. 20037  |  202.887.4769



Dr. Sklar believes in high-quality patient care.

Dr. Mark Sklar is a Board-certified endocrinologist with twenty years of experience practicing medicine.  He is Board-certified in Endocrinology and Internal Medicine. Dr. Sklar specializes in Endocrinology and Metabolism, with special interests in Thyroid Ultrasound and Ultrasound Guided Thyroid Biopsy, Thyroid Cancer and Diabetes.  Dr. Sklar is one of a few endocrinologists in the country who has received the prestigious Endocrine Certification in Neck Ultrasound (ECNU).

Dr. Sklar received his medical doctorate from the Boston University School of Medicine where he was in the Alpha Omega Alpha Honor Medical Society. He performed his residency in Internal Medicine at the Mount Sinai School of Medicine in New York, and he completed his fellowship in Endocrinology at the National Institutes of Health. Dr. Sklar is also a Fellow of the American College of Endocrinology, the American College of Physicians, and is an Assistant Professor at Georgetown University and George Washington Hospital in Washington, D.C.

He has admitting privileges at George Washington University Hospital, Georgetown University Hospital, and Sibley Hospital. He is a member of The Endocrine Society and the American Association of Clinical Endocrinologists.


Dr. Mark Sklar was voted a Washingtonian Magazine Top Doctor and Washington Consumer Checkbook Top Doctor in 2018

Dr. Mark Sklar was named one
of Washington's Top Doctors
in the Washingtonian and in
Consumers' Checkbook