Mariah Passwaters-Stamper, PA-C
Physician Assistant · Philadelphia, PA
Mariah Passwaters-Stamper, PA-C is a physician assistant with a practice address in Philadelphia, Pennsylvania, and NPI 1598477390, issued on Dec 23, 2022. Check the license with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mariah Passwaters-Stamper
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- C0008712 MD
Self-reported in NPPES; status is on the state search - Practice location
- 901 Walnut St, Philadelphia, PA 19107
- Phone
- (215) 955-1533
- Enumerated
- Dec 23, 2022
- Record last updated
- Dec 23, 2022
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 8,020 in Pennsylvania → Look up another NPI →
Also registered at 901 Walnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mariah Passwaters-Stamper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania 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
93% fewer Medicare Part D claims than the average physician assistant in 2024
54 Medicare Part D claims for 27 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Oxycodone Hcl17 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: $945.88
8 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Mariah Passwaters-Stamper among 8,020 physician assistant records in Pennsylvania
Mariah Passwaters-Stamper, PA-C is one of 8,020 physician assistant records with a practice address in Pennsylvania. 80% 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 73% of them.
- NPI issued2022 · 73% of these records are older, 22% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2022 · 42% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
955 physician assistant records list a practice address in Philadelphia
They are 955 of the 42,849 NPPES records with a practice address in Philadelphia, and 8,020 physician assistant records in Pennsylvania.
All 8,020 in Pennsylvania → Every provider in Philadelphia → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Robyn Alexander, P.A.Philadelphia, PA 191071134245897
- Jason Ausmus, PA-CPhiladelphia, PA 191071285803171
- Stacey Blasko, PA-CPhiladelphia, PA 191071225363666
- Melissa Carrasquillo, PA-CPhiladelphia, PA 191071821266016
- Kathryn Janick, PA CPhiladelphia, PA 191071700818937
- Lawrence King, PA-CPhiladelphia, PA 191071831390681
- Susan Langmuir, PAPhiladelphia, PA 191071649211525
- Laura Lonergan, PA-CPhiladelphia, PA 191071598925174
Common questions
What is Mariah Passwaters-Stamper, PA-C's NPI number?
Mariah Passwaters-Stamper, PA-C's National Provider Identifier (NPI) is 1598477390, issued on Dec 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mariah Passwaters-Stamper, PA-C located?
The NPPES record lists a practice address at 901 Walnut St, Philadelphia, PA, 19107. Phone: (215) 955-1533. Providers update this record themselves, so call before visiting.
How can I verify Mariah Passwaters-Stamper, PA-C's license?
Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Mariah Passwaters-Stamper, PA-C prescribe under Medicare Part D?
In 2024, Mariah Passwaters-Stamper, PA-C had 54 Medicare Part D claims for 27 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.