Dr Siamak Heydarian, MD - Medicare Internal Medicine in Woodbridge, VA

Dr Siamak Heydarian, MD is a medicare enrolled "Internal Medicine" physician in Woodbridge, Virginia. He graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 2200 Opitz Blvd, Suite 350, Woodbridge, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 497-6700.

Dr Siamak Heydarian is licensed to practice in Virginia (license number 0101048248) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1225072077.

Contact Information

Dr Siamak Heydarian, MD
2200 Opitz Blvd, Suite 350,
Woodbridge, VA 22191-3321
(703) 497-6700
(703) 497-6300

Map and Direction




Physician's Profile

Full NameDr Siamak Heydarian
GenderMale
SpecialityInternal Medicine
Experience37 Years
Location2200 Opitz Blvd, Woodbridge, Virginia
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Siamak Heydarian graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1225072077
  • Provider Enumeration Date: 06/15/2006
  • Last Update Date: 01/16/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 7416113659
  • Enrollment ID: I20120716000615

Medical Identifiers

Medical identifiers for Dr Siamak Heydarian such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225072077NPI-NPPES
110228399OtherRR MEDICARE
1452619015OtherCIGNA
433755OtherVAANTHEM BCBS
61910001OtherCAREFIRST BC BS
194200OtherAMERIGROUP
289363OtherMAMSI
150789200OtherDEPT OF LABOR
5853451MedicaidVA
102386OtherAETNA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 0101048248 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Caregivers Home Health Services, IncFalls church, VAHome health agency
Sentara Home Care ServicesDumfries, VAHome health agency
Sentara Northern Virginia Medical CenterWoodbridge, VAHospital
Mary Washington HospitalFredericksburg, VAHospital

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 Siamak Heydarian allows following entities to bill medicare on his behalf.
Entity NameAdult Primary Care Center Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326243395
PECOS PAC ID: 1153587399
Enrollment ID: O20120716000609

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 Siamak Heydarian 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
Dr Siamak Heydarian, MD
2200 Opitz Blvd, Suite 350,
Woodbridge, VA 22191-3321

Ph: (703) 497-6700
Dr Siamak Heydarian, MD
2200 Opitz Blvd, Suite 350,
Woodbridge, VA 22191-3321

Ph: (703) 497-6700

Reviews and Comments


Internal Medicine Doctors in Woodbridge, VA

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Fiona Mienko,
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Phone: 703-590-8300    Fax: 703-590-8301
Elena Short,
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Practice Location: 14139 Potomac Mills Rd, Woodbridge, VA 22192
Phone: 703-359-7878    

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.