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
Phone: 202-293-3636 | Fax: 202-293-0289
Drs. Parker, Kline, Dunne, and Horowitz - Google Maps


Dr. Mitchell B. Dunn is an internist affiliated with Sibley Memorial Hospital and George Washington University Hospital. 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)
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