NPI 1043211360

Gregory S Sibley, MD

Practitioner Radiation Oncology Physician Fairfax, VA

Practice location

Address: 8613 Route 29 STE 100n, Fairfax, VA 22031-2172
Phone: (571) 350-8400
Fax: (703) 280-9596
Mailing address: 3040 Williams Dr STE 100, Fairfax, VA 22031-4618

Registered specialties

Radiation Oncology Physician Primary

Allopathic & Osteopathic Physicians Taxonomy 2085R0001X Licence 0101052359 (VA)

Other Radiology providers in Virginia →

Registry record

NPI: 1043211360
Entity type: Individual
Sex (as registered): Male
NPI issued: 9 Aug 2005
Record last updated: 11 Nov 2025

Reproduced from NPPES, the federal provider registry. The date above is when the provider last updated their own entry, not when we fetched it - a record can be years old and still current in the registry.