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Mark I Cinnamon, M.D.

Photo of Dr. Mark I Cinnamon, M.D.


Expertise: Anxiety Disorders, Cardiovascular Diseases, Depression, Diabetes, High Cholesterol, Hypertension, Internal Medicine, Psychologist


Mark Cinnamon, MD
Appointment Phone: 202-775-2777

2440 M Street NW
Suite 201
Washington, DC 20037 map
Phone: 202-775-2777
Fax: 202-331-8185


Dr. Mark I. Cinnamon is an internist affiliated with Sibley Memorial Hospital, George Washington University Hospital and Washington Hospital Center. Dr. Cinnamon is certified in internal medicine by the American Board of Internal Medicine. He has a private practice in Washington, D.C.

Dr. Cinnamon focuses on adult medicine, with an expertise in cardiovascular diseases, diabetes, hypertension and cholesterol problems. He also has experience in the treatment of psychological disorders such as depression and anxiety. 

Dr. Cinnamon earned his medical degree from SUNY Downstate College of Medicine. He completed a residency in internal medicine at George Washington University School of Medicine, as well as a fellowship in cardiology. 

Dr. Cinnamon is a member of the American College of Physicians and the American Diabetes Association. He previously served on numerous hospital committees, such as the board of trustees at Washington Hospital Center. 

Dr. Cinnamon has been named a Top Internist by Washingtonian Magazine. more

Departments / Divisions

  • Medicine at Sibley Memorial Hospital



  • MD, SUNY Downstate Medical Center College of Medicine (1972)


  • George Washington University Hospital / Internal Medicine (1975)


  • The George Washington University School of Medicine and Health Sciences / Cardiology (1976)

Board Certifications

  • American Board of Internal Medicine / Internal Medicine

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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