Sigma Health Direct Primary Care - Medicare Primary Care in Ashburn, VA

Sigma Health Direct Primary Care is a medicare enrolled primary clinic (Family Medicine) in Ashburn, Virginia. The current practice location for Sigma Health Direct Primary Care is 44335 Premier Plz Ste 230, Ashburn, Virginia. For appointments, you can reach them via phone at (571) 577-6806. The mailing address for Sigma Health Direct Primary Care is 44335 Premier Plz Ste 230, Ashburn, Virginia and phone number is (571) 577-6806.

Sigma Health Direct Primary Care is licensed to practice in NU (license number ). The clinic also participates in the medicare program and its NPI number is 1538959788. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (571) 577-6806.

Contact Information

Sigma Health Direct Primary Care
44335 Premier Plz Ste 230
Ashburn
VA 20147-5052
(571) 577-6806
Not Available

Map and Direction


Primary Care Clinic Profile

Full NameSigma Health Direct Primary Care
SpecialityFamily Medicine
Location44335 Premier Plz Ste 230, Ashburn, Virginia
Authorized Official Name and PositionArun Nag Santhosh Mallapareddi (OWNER)
Authorized Official Contact5715776806
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Sigma Health Direct Primary Care
44335 Premier Plz Ste 230
Ashburn
VA 20147-5052

Ph: (571) 577-6806
Sigma Health Direct Primary Care
44335 Premier Plz Ste 230
Ashburn
VA 20147-5052

Ph: (571) 577-6806

NPI Details:

NPI Number1538959788
Provider Enumeration Date05/10/2025
Last Update Date05/27/2025
Certification Date05/27/2025

Medicare PECOS Information:

Medicare PECOS PAC ID3971001934
Medicare Enrollment IDO20250808001954

Medical Identifiers

Medical identifiers for Sigma Health Direct Primary Care such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538959788NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine (NU)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Sigma Health Direct Primary Care acts as a billing entity for following providers:
Provider NameArun Nag Santhosh Nag Santhosh Mallapareddi
Provider TypePractitioner - Family Practice
Provider IdentifiersNPI Number: 1780048264
PECOS PAC ID: 4789968942
Enrollment ID: I20250624001600

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).

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.