Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Robert Steven Siegel, MD

Individual provider Hematology & Oncology Physician · NPI 1003985367

Robert Steven Siegel, MD is a Hematology/Oncology in Washington, District of Columbia. Graduated from George Washington University School of Medicine in 1977, 49 years ago. Practices with Medical Faculty Associates, Inc, a 684-clinician group and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
49
Trained at
George Washington University School of Medicine
Licensed in
DC, MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2150 Pennsylvania Ave NW
Washington, DC 20037-3201
Phone: (202) 741-3333
Fax: (202) 741-3396
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence MD13567 (DC)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence D43361 (MD)

Record details

NPI number1003985367
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 8, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Medical Faculty Associates, Inc — 684 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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