Individual provider · Type 1 NPI

Gregory S. Sibley, MD

Radiation Oncology Physician · Fairfax, VA

NPI number 1043211360 Active

Practice location

8613 Route 29 Ste 100N
Fairfax, VA 22031-2172

Call (571) 350-8400 Map

Fax (703) 280-9596

Mailing address

3040 Williams Dr Ste 100
Fairfax, VA 22031-4618

Specialties and licenses

TaxonomyCodeLicense
Radiation Oncology Physician Primary 2085R0001X0101052359 (VA)

Radiation Oncology Physician: A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

2 other providers at this address

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About NPI 1043211360

Gregory S. Sibley, MD's National Provider Identifier is 1043211360, issued on Aug 9, 2005. The primary taxonomy on file is Radiation Oncology Physician (2085R0001X), and the practice location is in Fairfax, VA. The record was last updated on Nov 11, 2025.