Ajay Dar, MD - Medicare Medical Oncology in Leesburg, VA

Ajay Dar, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Leesburg, Virginia. He graduated from medical school in 1984 and has 40 years of diverse experience with area of expertise as Medical 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 44035 Riverside Pkwy Ste 300, Leesburg, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 208-3155.

Ajay Dar is licensed to practice in Virginia (license number 0101231668) 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 1215905286.

Contact Information

Ajay Dar, MD
44035 Riverside Pkwy Ste 300,
Leesburg, VA 20176-8260
(703) 208-3155
(703) 724-7503

Map and Direction




Physician's Profile

Full NameAjay Dar
GenderMale
SpecialityMedical Oncology
Experience40 Years
Location44035 Riverside Pkwy Ste 300, Leesburg, Virginia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Ajay Dar graduated from medical school in 1984
  NPI Data:
  • NPI Number: 1215905286
  • Provider Enumeration Date: 03/08/2006
  • Last Update Date: 10/24/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2961392121
  • Enrollment ID: I20100108000673

Medical Identifiers

Medical identifiers for Ajay Dar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215905286NPI-NPPES
466399OtherVATRIGON/ANTHEM
231788OtherVASOUTHERN HEALTH
541795091OtherVAONE HEALTH PLAN
541795091OtherVAFX CTY COMM HEALTH
1215905286MedicaidVA
236852OtherVAKAISER
500617-5556519OtherVAAETNA PPO
541795091OtherVAPHCS POS/PPO
541795091OtherVAFIRST HEALTH
0870-0019OtherVABCBS NCA/CARE FIRST
615136OtherVANCPPO
0460402OtherVACIGNA HMO
500617-3351765OtherVAAETNA HMO
541795091OtherVATRICARE
2110876OtherVAMAMSOI/OP CHOICE/ALLIANCE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RX0202XInternal Medicine - Medical Oncology 0101231668 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Reston Hospital CenterReston, VAHospital
Inova Loudoun HospitalLeesburg, VAHospital
Inova Fairfax HospitalFalls church, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Virginia Cancer Specialists, P.c.226441248565
Virginia Cancer Specialists, P.c.226441248565

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. Ajay Dar allows following entities to bill medicare on his behalf.
Entity NameVirginia Cancer Specialists, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346294519
PECOS PAC ID: 2264412485
Enrollment ID: O20040720001097

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. Ajay Dar 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 AddressPractice Location Address
Ajay Dar, MD
3040 Williams Dr Ste 100,
Fairfax, VA 22031-4618

Ph: (571) 350-8400
Ajay Dar, MD
44035 Riverside Pkwy Ste 300,
Leesburg, VA 20176-8260

Ph: (703) 208-3155

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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