Allison Griner Sewell, PA-C
Physician Assistant · Olney, MD
Allison Griner Sewell, PA-C is a physician assistant with a practice address in Olney, Maryland, and NPI 1821706672, issued on Nov 10, 2022. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Allison Griner Sewell
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 18101 Prince Philip Dr, Olney, MD 20832
- Phone
- (301) 774-8962
- Enumerated
- Nov 10, 2022
- Record last updated
- Jun 5, 2023
- Medicare enrollment
- Enrolled (PECOS I20230303001431); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,224 in Maryland → Look up another NPI →
Also registered at 18101 Prince Philip Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Allison Griner Sewell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average physician assistant in 2024
124 Medicare Part D claims for 82 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims. 36 claims were for opioids.
Most prescribed
- Oxycodone Hcl33 claims
- Ozempic24 claims
- Mounjaro14 claims
- Trulicity13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $37.16
2 payments; by number, the most common kind was food and beverage; the largest payer was Ethicon US, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Medstar Medical Group II LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allison Griner Sewell among 3,224 physician assistant records in Maryland
Allison Griner Sewell, PA-C is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 76% of them.
- NPI issued2022 · 76% of these records are older, 19% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2022 · median 2017 among the 1,974 with a school on file
- Record last updated2023 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 physician assistant records list a practice address in Olney
They are 19 of the 742 NPPES records with a practice address in Olney, and 3,224 physician assistant records in Maryland.
All 3,224 in Maryland → Every provider in Olney → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Eliana Assimakopoulos, PACOlney, MD 208321699734384
- Aryn Bereznay, PA-COlney, MD 208321376721563
- Paul Burke, PA-COlney, MD 208321053388132
- Alexander Bury, PAOlney, MD 208321356611529
- Samantha Coburn, PA-COlney, MD 208321568061281
- Brian FlatterOlney, MD 208321871238576
- Rachel GonzalezOlney, MD 208321821712159
- Darrell Kontz, PAOlney, MD 208321275692113
Common questions
What is Allison Griner Sewell, PA-C's NPI number?
Allison Griner Sewell, PA-C's National Provider Identifier (NPI) is 1821706672, issued on Nov 10, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Allison Griner Sewell, PA-C located?
The NPPES record lists a practice address at 18101 Prince Philip Dr, Olney, MD, 20832. Phone: (301) 774-8962. Providers update this record themselves, so call before visiting.
How can I verify Allison Griner Sewell, PA-C's license?
Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Allison Griner Sewell, PA-C prescribe under Medicare Part D?
In 2024, Allison Griner Sewell, PA-C had 124 Medicare Part D claims for 82 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.