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Healthcare Providers in District of Columbia

Find doctors, hospitals, and clinics in District of Columbia from the official NPPES NPI Registry. We found 149 providers in this listing.

149 Providers Found Data from NPPES NPI Registry Updated 2026
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All Providers Doctors Hospitals & Clinics
Showing 31–45 of 149 providers
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Individual (NPI-1) Active

NANCY ANN DAWSON M.D.

Internal Medicine, Medical Oncology

📍3800 RESERVOIR RD NW, WASHINGTON, DC, 20007

📞 202-444-2223

NPI: 1073571519

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Individual (NPI-1) Active

JOHN FREDERICK DEEKEN MD

Internal Medicine, Medical Oncology

📍8081 INNOVATION PARK DR, FAIRFAX, VA, 22031

📞 571-472-4724

NPI: 1659390755

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Individual (NPI-1) Active

KIMBERLEY DOUCETTE M.D.

Internal Medicine, Medical Oncology

📍3800 RESERVOIR RD NW, WASHINGTON, DC, 20007

📞 202-444-3736

NPI: 1750776837

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Individual (NPI-1) Active

MICHAEL ARISTIDES DOUKAS M.D., M.P.A.

Internal Medicine, Hematology & Oncology

📍810 VERMONT AVE NW, WASHINGTON, DC, 20420

📞 202-461-7163

NPI: 1407968829

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Individual (NPI-1) Active

KIERON DUNLEAVY MD

Internal Medicine, Medical Oncology

📍3800 RESERVOIR RD NW, WASHINGTON, DC, 20007

📞 202-444-3736

NPI: 1154610467

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Individual (NPI-1) Active

JACINTA D ELDER-ARRINGTON M.D.

Internal Medicine

📍2300 M ST NW, WASHINGTON, DC, 20037

📞 202-741-2222

NPI: 1740421510

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Individual (NPI-1) Active

ODAY ATA ELMANASEER MD

Internal Medicine, Hematology & Oncology

📍555 W 8TH ST, JACKSONVILLE, FL, 32209

📞 904-244-8846

NPI: 1164917829

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Individual (NPI-1) Active

FAYEZ ESTEPHAN MD

Internal Medicine, Hematology & Oncology

📍2150 PENNSYLVANIA AVE, NW, WASHINGTON, DC, 20037

📞 202-741-2277

NPI: 1689093296

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Individual (NPI-1) Active

HENRY B FOX M.D.

Internal Medicine, Hematology & Oncology

📍2440 M ST NW, WASHINGTON, DC, 20037

📞 202-296-2440

NPI: 1396810578

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Individual (NPI-1) Active

CHRISTOPHER M GALLAGHER M.D.

Internal Medicine, Hematology & Oncology

📍6900 GEORGIA AVE NW, WASHINGTON, DC, 20307

📞 202-782-4350

NPI: 1467430579

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Individual (NPI-1) Active

MOUNIKA GANGIREDDY

Internal Medicine, Hematology & Oncology

📍110 IRVING ST NW STE 2A38M, WASHINGTON, DC, 20010

📞 202-877-4677

NPI: 1376066852

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Individual (NPI-1) Active

ANN WILD GRAMZA M.D.

Internal Medicine, Hematology & Oncology

📍3800 RESERVOIR RD NW, WASHINGTON, DC, 20007

📞 202-444-1558

NPI: 1760690069

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Individual (NPI-1) Active

EMMA MAUREEN GROARKE MD

Internal Medicine, Hematology

📍NATIONAL INSTITUTES OF HEALTH HEMATOLOGY BRANCH NHLBI, BETHESDA, MD, 20892

📞 202-856-2571

NPI: 1669957460

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Individual (NPI-1) Active

ELIZABETH DE LA NUBE GUADALUPE VALLEJO M.D.

Internal Medicine, Hematology & Oncology

📍400 MILITARY HEIGHTS PL, ROSWELL, NM, 88201

📞 575-627-9110

NPI: 1871949511

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Individual (NPI-1) Active

AMY ROSENBERG HANKIN

Internal Medicine, Hematology & Oncology

📍3800 RESERVOIR RD NW, WASHINGTON, DC, 20007

📞 202-444-2198

NPI: 1861424434

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🗺 Cities in District of Columbia

📍 Washington, D.C.

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Providers Listed 149
Cities Found 1
State District of Columbia
Source NPPES NPI Registry

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Healthcare in District of Columbia

The District of Columbia, while not a state, has one of the most concentrated collections of world-class medical institutions in the United States. Washington, D.C. is home to MedStar Washington Hospital Center — the largest hospital in the District and a Level I Trauma Center — George Washington University Hospital (GWU Hospital), Georgetown University Hospital, Howard University Hospital, and Children's National Hospital, consistently ranked among the top children's hospitals in the nation.

The District also houses major federal health agencies, including the National Institutes of Health (NIH) Clinical Center in nearby Bethesda, Maryland — the world's largest hospital dedicated to clinical research — and the Walter Reed National Military Medical Center in Bethesda, the flagship military hospital in the United States.

D.C. has one of the most generous Medicaid programs in the country, covering adults earning up to 215% of the federal poverty level. The DC Department of Health Care Finance (DHCF) (dhcf.dc.gov) administers Medicaid, while the DC Health (dchealth.dc.gov) oversees public health programs and healthcare licensing. Despite its wealth of medical resources, D.C. has significant health disparities between its wealthier northwest neighborhoods and lower-income areas in the east and southeast.

Frequently Asked Questions — District of Columbia Healthcare