Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mrs. Mary Elizabeth Zempolich, PA-C

Individual provider Surgical Physician Assistant · NPI 1881819498

Mrs. Mary Elizabeth Zempolich, PA-C is a Physician Assistant in Fairfax, Virginia. Qualified in 1986, 40 years ago. Practices with Virginia Cancer Specialists, PC, a 79-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
40
Licensed in
VA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

3700 Joseph Siewick Dr Ste 408
Fairfax, VA 22033-1745
Phone: (715) 350-8400
Fax: (703) 620-0952
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence 0110840351 (VA)
Physician Assistant Taxonomy 363A00000X · Licence 0110840351 (VA)

Record details

NPI number1881819498
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedApril 17, 2007
Last updated in NPPESNovember 11, 2025
Certification dateNovember 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Virginia Cancer Specialists, P.C. — 79 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients141
Services billed 150 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Virginia Cancer Specialists, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 79 clinicians in the practice; 12 are shown here.

Other providers in Fairfax