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Dennis A Cullen, M.D.
Cullen Umosella Cullen and Cullen
Appointment Phone: 240-497-1570
7625 Wisconsin Ave
Bethesda, MD 20814 map
Cullen Umosella Cullen and Cullen MD PC
6188 Oxon Hill RD
Oxon Hill, MD 20745 map
Dr. Dennis A. Cullen is an internist affiliated with Sibley Memorial Hospital. Dr. Cullen is certified in internal medicine by the American Board of Internal Medicine. He practices out of Cullen, Umosella, Cullen & Cullen in Bethesda, Md. and Oxon Hill, Md.
Dr. Cullen earned his medical degree from Georgetown University School of Medicine. He completed a residency in internal medicine at Georgetown University Hospital.
Dr. Cullen has been named a Top MD by Consumers’ Checkbook Magazine, as well as a Top Family/General Practitioner and a Top Internist by Washingtonian Magazine.
Departments / Divisions
- Medicine at Sibley Memorial Hospital
- MD, Georgetown University School of Medicine (1982)
- Georgetown University School of Medicine / Internal Medicine (1985)
- American Board of Internal Medicine / Internal Medicine (1986)