Dr Gregory S Sibley, MD in Fairfax, VA - Medicare Radiation Oncology

Dr Gregory S Sibley, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Fairfax, Virginia. He went to University Of Michigan Medical School and graduated in 1990 and has 35 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice Virginia Cancer Specialists, P.c., Virginia Cancer Specialists, P.c. and his current practice location is 8613 Route 29 Ste 100n, Fairfax, Virginia. You can reach out to his office (for appointments etc.) via phone at (571) 350-8400.

Dr Gregory S Sibley is licensed to practice in Virginia (license number 0101052359) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1043211360.

Contact Information

	Dr Gregory S Sibley, MD
	8613 Route 29 Ste 100n, Fairfax, VA 22031-2172
	(571) 350-8400
	(703) 280-9596

Map and Direction

Physician's Profile

Full Name	Dr Gregory S Sibley
Gender	Male
Speciality	Radiation Oncology
Experience	35 Years
Location	8613 Route 29 Ste 100n, Fairfax, Virginia
Accepts Medicare Assignments	Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Dr Gregory S Sibley attended and graduated from University Of Michigan Medical School in 1990

NPI Data:

NPI Number: 1043211360
Provider Enumeration Date: 08/09/2005
Last Update Date: 11/11/2025

Medicare PECOS Information:

PECOS PAC ID: 6103961784
Enrollment ID: I20100308000136

Medical Identifiers

Medical identifiers for Dr Gregory S Sibley such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1043211360	NPI	-	NPPES
5821738	Medicaid	DC

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2085R0001X	Radiology - Radiation Oncology	0101052359 (Virginia)	Primary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Virginia Cancer Specialists, P.c.	2264412485	74
Virginia Cancer Specialists, P.c.	2264412485	74

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Gregory S Sibley allows following entities to bill medicare on his behalf.

Entity Name	Virginia Cancer Specialists, P.c.
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1346294519 PECOS PAC ID: 2264412485 Enrollment ID: O20050628000817

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Gregory S Sibley is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Dr Gregory S Sibley, MD 3040 Williams Dr Ste 100, Fairfax, VA 22031-4618 Ph: (571) 350-8400	Dr Gregory S Sibley, MD 8613 Route 29 Ste 100n, Fairfax, VA 22031-2172 Ph: (571) 350-8400

Reviews and Comments

Radiology Doctors in Fairfax, VA

Jing Selia Chen, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 2722 Merrilee Dr, Ste 230, Fairfax, VA 22031 Phone: 703-698-4483 Fax: 703-573-0880
Cheryl A Lindstrom, MD Radiology Medicare: Not Enrolled in Medicare Practice Location: 2722 Merrilee Dr, Suite 230, Fairfax, VA 22031 Phone: 703-698-4444 Fax: 703-698-2176
Sameena F Nasrullah, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 2722 Merrilee Dr, Suite 230, Fairfax, VA 22031 Phone: 703-698-4483 Fax: 703-573-0880
Elise L. Berman, MD Radiology Medicare: Medicare Enrolled Practice Location: 2722 Merrilee Dr, #230, Fairfax, VA 22031 Phone: 703-698-4444 Fax: 703-573-0880
Suzanne M Hand, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 2722 Merrilee Dr, Ste 230, Fairfax, VA 22031 Phone: 703-698-4444
Rodney J Butch, M.D. Radiology Medicare: Not Enrolled in Medicare Practice Location: 2722 Merrilee Dr, Ste. 230, Fairfax, VA 22031 Phone: 703-698-4483 Fax: 703-698-2176

Dr Gregory S Sibley, MD - Medicare Radiation Oncology in Fairfax, VA