Mrs Mary Ellen Zator Estes, NP - Medicare Nurse Practitioner in Fairfax, VA

Mrs Mary Ellen Zator Estes, NP is a medicare enrolled "Nurse Practitioner" in Fairfax, Virginia. She graduated from nursing school in 2000 and has 24 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Privia Medical Group Llc and her current practice location is 3620 Joseph Siewick Dr, Suite 306, Fairfax, Virginia. You can reach out to her office (for appointments etc.) via phone at (703) 264-0521.

Mrs Mary Ellen Zator Estes is licensed to practice in Virginia (license number 0024164568) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1447427000.

Contact Information

Mrs Mary Ellen Zator Estes, NP
3620 Joseph Siewick Dr, Suite 306,
Fairfax, VA 22033-1756
(703) 264-0521
(703) 860-0229

Map and Direction




Provider's Profile

Full NameMrs Mary Ellen Zator Estes
GenderFemale
SpecialityNurse Practitioner
Experience24 Years
Location3620 Joseph Siewick Dr, Fairfax, Virginia
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mrs Mary Ellen Zator Estes graduated from nursing school in 2000
  NPI Data:
  • NPI Number: 1447427000
  • Provider Enumeration Date: 05/13/2008
  • Last Update Date: 08/27/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 7517192750
  • Enrollment ID: I20131024001489

Medical Identifiers

Medical identifiers for Mrs Mary Ellen Zator Estes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447427000NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 0024164568 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Privia Medical Group Llc43856820611223

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. Mrs Mary Ellen Zator Estes allows following entities to bill medicare on her behalf.
Entity NamePrivia Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013042480
PECOS PAC ID: 4385682061
Enrollment ID: O20050422000298

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. Mrs Mary Ellen Zator Estes 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
Mrs Mary Ellen Zator Estes, NP
3620 Joseph Siewick Dr, Suite 306,
Fairfax, VA 22033-1756

Ph: (703) 264-0521
Mrs Mary Ellen Zator Estes, NP
3620 Joseph Siewick Dr, Suite 306,
Fairfax, VA 22033-1756

Ph: (703) 264-0521

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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