Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Allison Griner Sewell, PA-C

Individual provider Physician Assistant · NPI 1821706672

Allison Griner Sewell, PA-C is a Physician Assistant in Olney, Maryland. Qualified in 2022, 4 years ago. Practices with Medstar Medical Group II LLC, a 3,717-clinician group and accepts Medicare assignment.

Years since qualifying
4
In the registry since
2022
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

18101 Prince Philip Dr
Olney, MD 20832-1514
Phone: (301) 774-8962
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X

Record details

NPI number1821706672
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorYes
NPI enumeratedNovember 10, 2022
Last updated in NPPESJune 5, 2023
Certification dateJune 5, 2023

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Medstar Medical Group Ii Llc — 3717 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Olney