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Mitchell B Dunn, M.D.



Internal Medicine


Drs. Parker, Kline, Dunne, and Horowitz

Appointment Phone: 202-293-3636
2021 K Street NW
Suite 512
Washington, DC 20006 map
Phone: 202-293-3636 | Fax: 202-293-0289


Dr. Mitchell B. Dunn is an internist affiliated with Sibley Memorial Hospital and George Washington University Hospital. Dr. Dunn is certified in internal medicine by the American Board of Internal Medicine. He practices out of Drs. Parker, Kline, Dunn and Horowitz in Washington, D.C.

Dr. Dunn earned his medical degree from Duke University School of Medicine. He completed his residency in internal medicine at George Washington University Hospital, serving as chief medical resident. 

Dr. Dunn has been named a Super Doctor by the Washington Post Magazine, a Top Doctor by Consumers’ Checkbook Magazine and Washingtonian Magazine, and a Regional Top Doctor in the Washington, D.C. and Washington-Baltimore areas by Castle Connolly. more

Departments / Divisions

  • Medicine at Sibley Memorial Hospital



  • MD; Duke University School of Medicine (1980)

Board Certifications

  • American Board of Internal Medicine (Internal Medicine) (1983)

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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