virginia
Specialties
Radiation Oncologist
Dr. Gregory S. Sibley
Last updated: Nov 11, 2025

Dr. Gregory S. Sibley

  • Gender: Male
  • Experience: 31 years
  • Graduated from: University Of Michigan Medical School
  • Graduation year: 1990
  • Sole propriator: No
  • NPI: 1043211360

Dr. Gregory S. Sibley M.D.

Radiation Oncologist

He is located at 8613 Route 29 Suite 100N in Fairfax, VA 22031. Can help patients with the following: Bone Cancer, Colon Cancer, Leukemia, Prostate Cancer, Sarcoma, Testicular Cancer. His National Provider Identifier (NPI) number is 1043211360. Appointment can be made via the phone number (571) 350-8400. He also has a website where you can get more information. The website can be found at https://www.virginiacancerspecialists.com/physician/gregory-s-sibley-m-d/. He is affiliated with 2 practices.

Conditions treated

Dr. Gregory S. Sibley, being an radiation oncologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Gregory S. Sibley.

  • Acoustic Neuroma
  • Anal Cancer
  • Bladder Cancer
  • Bone Cancer
  • Brain Cancer
  • Breast Cancer
  • Cancer
  • Cervical Cancer
  • Colon Cancer
  • Cushing's Syndrome
  • Hodgkin's Disease
  • Leukemia
  • Liver Cancer
  • Lung Cancer
  • Penis Cancer
  • Prostate Cancer
  • Salivary Gland Cancer
  • Sarcoma
  • Testicular Cancer
  • Vaginal Cancer

Procedures Performed by Dr. Gregory S. Sibley

Insurances Accepted by Dr. Gregory S. Sibley

  1. Medicare

Payments received

Drug payment

Varian Medical Systems $146
Novocure $129
Amgen $34

Other

Food and Beverage $370

Studies

UNIVERSITY OF MICHIGAN MEDICAL SCHOOL

Graduated in 1990

Other ways to reach out

  • Website: https://www.virginiacancerspecialists.com/physician/gregory-s-sibley-m-d/

Affiliated practices

Virginia Cancer Specialists - Fairfax
8503 Arlington Blvd
Fairfax, 22031 VA
(703) 280-5390
Virginia Cancer Specialists - Fairfax Radiation Oncology Center
10301 Democracy Lane
Fairfax, 22030 VA
(703) 934-4450

Looking for more Radiation Oncologists?

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Dr. Jeffrey C. Acker
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Dr. Jaipreet S. Suri
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Dr. Robert G. Slawson
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Questions & Answers

Does Dr. Gregory S. Sibley accept patients with Medicare?

Yes, Dr. Gregory S. Sibley accepts patients with Medicare.

What conditions does Dr. Gregory S. Sibley treat?

Dr. Gregory S. Sibley provides treatment for Bone Cancer, Colon Cancer, Leukemia, Prostate Cancer, Sarcoma, Testicular Cancer. For the full list see this list.

Does Dr. Gregory S. Sibley have affiliation with practices?

Dr. Gregory S. Sibley is affiliated with Virginia Cancer Specialists - Fairfax. For the full list of practices see this list.

Where can you meet with Dr. Gregory S. Sibley?

Dr. Gregory S. Sibley's office is located at 8613 Route 29 Suite 100N in Fairfax, VA 22031.