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MRS. MARY ELIZABETH ZEMPOLICH PA-C
NPI 1881819498
Physician Assistant - Surgical in Fairfax, VA

Active since April 17, 2007PECOS EnrolledAccepts Medicare Assignment
91.96/100
CMS Quality Rating
3700 JOSEPH SIEWICK DR STE 408, FAIRFAX, VA 22033(715) 350-8400(703) 620-0952 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 11, 2025, Mar 10, 2025, Apr 24, 2024 and 2 more (5 updates tracked since 2018).

About Mrs. Mary Elizabeth Zempolich Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. MARY ELIZABETH ZEMPOLICH PA-C (NPI 1881819498) is an individual surgical provider in Fairfax, Virginia, licensed in Virginia (0110840351) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with Virginia Hospital Center, and is a graduate of Other (1986).

NPPES Registry Identity

NPI1881819498
Entity TypeIndividualFemale
Primary Taxonomy363AS0400X
Provider Legal NameMRS. MARY ELIZABETH ZEMPOLICHCredential: PA-C
Location Address3700 JOSEPH SIEWICK DR STE 408Fairfax, VA 22033-1745
Mailing Address3040 Williams Dr Ste 100Fairfax, VA 22031-4618 · (571) 350-8400 · Fax (703) 620-0952
Phone(715) 350-8400
Fax(703) 620-0952
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateApril 17, 2007
Last NPPES UpdateNovember 11, 20255 updates tracked since enumeration
NPPES CertifiedNovember 11, 2025
✔ NPI 1881819498 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician Assistant · SurgicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AS0400X
License✔ Licensed in VA · 0110840351
Also ListedPhysician AssistantTaxonomy 363A00000X · License 0110840351 (VA)
3700 JOSEPH SIEWICK DR STE 408, Fairfax, VA 22033
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Mary Elizabeth Zempolich Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8921109117
PECOS Enrollment IDI20070718000148
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
135 services130 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Virginia Hospital Center

Acute Care Hospitals · Arlington, VA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490050
Location1701 North George Mason DriveArlington, VA 22205 · Arlington County
Emergency services Birthing friendly

Uva Health Haymarket Medical Center

Acute Care Hospitals · Haymarket, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490144
Location15225 Healthcote BoulevardHaymarket, VA 20169 · Prince William County
Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.96/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.4
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

FAIR OAKS SURGICAL ASSOCIATES LLC
Specialist/Technologist, Other (Surgical Assistant)
3700 JOSEPH SIEWICK DR STE 408
FAIRFAX, VA 22033
Fairfax County (703) 391-3620
DANIEL GENE CHONG M.D.
Internal Medicine (Hematology & Oncology)
3700 JOSEPH SIEWICK DR STE 408
FAIRFAX, VA 22033
Fairfax County (571) 350-8400

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Zempolich's NPI number?

The NPI number for Mary Zempolich is 1881819498. It was assigned to this individual provider in the NPPES registry on April 17, 2007.

Where is Mary Zempolich located?

Mary Zempolich practices at 3700 Joseph Siewick Dr Ste 408, Fairfax, VA 22033. The listed phone number is (715) 350-8400.

What is Mary Zempolich's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Surgical, with taxonomy code 363AS0400X.

Is Mary Zempolich enrolled in Medicare?

Yes. Mary Zempolich is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Mary Zempolich affiliated with any hospitals?

According to CMS data, Mary Zempolich is affiliated with Virginia Hospital Center and Uva Health Haymarket Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Zempolich was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.