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Gregory Sibley in Fairfax, Virginia

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Gregory Sibley has Radiation Oncology as his primary medical specialty. Their primary office is: 8613 Route 29 in Fairfax, Virginia. There are 2 additional office locations for Gregory Sibley that can be viewed towards the end of their profile.

They're a part of the: Virginia Cancer Specialists, P.c. medical group which has around 66 members. You can call their office at 703-934-4450 to schedule an appointment. They also accept the Medicare-approved amount as payment in full. They attended University Of Michigan Medical School and graduated in 1990 (around 34 years of experience). They are listed as doing telehealth appointments.


Gregory S Sibley Office Phone and Directions

Gregory Sibley
Virginia Cancer Specialists, P.c.
8613 Route 29
Fairfax, Virginia 22031
703-934-4450


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Phone: 703-934-4450


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Healthcare Info for Gregory Sibley

Medical School: University Of Michigan Medical School
Graduation Year: 1990
The Primary Medical Specialty for Gregory Sibley is listed as: Radiation Oncology
Approximate Years of Experience: 34
PAC (PECOS ID)#: 6103961784
NPI #: 1043211360
NPI Created On: 08/09/2005
NPI Last Updated Listed as: 10/26/2022
Primary Taxonomy Code: 174400000X

URL not found for state: DC licensing board.
License Number:
MD31361
Listed Gender: Male

Insurance, Services, Charges


Forms of insurance accepted by include, but are not limited to:

  • Kaiser Permanente
  • Optima Health Plan
  • Medicare

They are listed as accepting new patients.

Languages spoken by staff include: English.


Services and Procedures include:

  1. Injection of biodegradable material next to prostate
  2. Ultrasound of prostate
  3. Ultrasonic guidance for administration of radiation therapy
  4. Ct scan guidance for insertion of radiation therapy fields
  5. Management of radiation therapy, complex
  6. Management of radiation therapy, simulation, complex
  7. Respiratory motion management simulation
  8. Management of radiation therapy, 3d
  9. Calculation of radiation therapy dose
  10. Management of modulation radiotherapy planning
  11. Radiation therapy plan
  12. Radiation treatment devices, design and construction, simple
  13. Radiation treatment devices, design and construction, complex
  14. Radiation therapy consultation per week
  15. Design and construction of device for radiation therapy
  16. Stereotactic body radiation therapy 1 or more lesions using imaging guidance
  17. Therapeutic radiology port films
  18. Radiation treatment management, 5 treatments
  19. Stereotactic radiation treatment management of 1 or more lesions using imaging guidance, per treatment course
  20. Application of radiation source, complex

They took part in Medicare's Electronic Health Record Incentive Program which was designed to help move people over to electronic records and improve the systems that were already in place.
They took part in the Medicare Physician Quality Reporting System (PQRS).

Additional Office Locations

1. Virginia Cancer Specialists, P.c.
1635 N George Mason Dr
Arlington, VA 22205
Suite 170
Group Members: 66

Phone: 703-934-4450

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2. Virginia Cancer Specialists, P.c.
4660 Kenmore Ave
Alexandria, VA 22304
Suite 1018
Group Members: 66

Phone: 703-934-4450

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Radiation Oncology Professionals in Fairfax

8081 Innovation Park Dr
Fairfax, VA
Radiation Oncology Associates Pc

3600 Joseph Siewick Dr
Fairfax, VA
Radiation Oncology Associates Pc

8081 Innovation Park Dr
Fairfax, VA
Radiation Oncology Associates Pc

3580 Joseph Siewick Dr
Fairfax, VA
Radiation Oncology Associates Pc

8081 Innovation Park Dr
Fairfax, VA
Radiation Oncology Associates Pc

3600 Joseph Siewick Dr
Fairfax, VA
Radiation Oncology Associates Pc

Providers in Virginia Cancer Specialists, P.c.

1.Harold Agbahiwe

8613 Route 29
Fairfax Va 22031-2172
Virginia Cancer Specialists, P.c.
Radiation Oncology

2.Harold Agbahiwe

1701 N George Mason Dr
Arlington Va 22205-3610
Virginia Cancer Specialists, P.c.
Radiation Oncology

3.Harold Agbahiwe

1635 N George Mason Dr
Arlington Va 22205-3633
Virginia Cancer Specialists, P.c.
Radiation Oncology

4.Harold Agbahiwe

4660 Kenmore Ave
Alexandria Va 22304-1306
Virginia Cancer Specialists, P.c.
Radiation Oncology

5.Stephanie Akbari

8613 Route 29
Fairfax Va 22031-2172
Virginia Cancer Specialists, P.c.
General Surgery

6.Stephanie Akbari

4660 Kenmore Ave
Alexandria Va 22304-1306
Virginia Cancer Specialists, P.c.
General Surgery

View all 66 members of Virginia Cancer Specialists, P.c. medical group