Pia L. Musielak, RPA-C
Physician Assistant · Williamsville, NY
Pia L. Musielak, RPA-C is a physician assistant with a practice address in Williamsville, New York, and NPI 1194708180, issued on Nov 22, 2005. Check the license (New York 009366, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Pia L. Musielak
- Credential
- RPA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 009366 NY
Self-reported in NPPES; status is on the state search - Practice location
- 6460 Main St, Williamsville, NY 14221
- Phone
- (716) 634-5100
- Enumerated
- Nov 22, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (716) 634-5134
- Medicare enrollment
- Enrolled (PECOS I20050620000861); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 15,555 in New York → Look up another NPI →
Also registered at 6460 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Corbelli, MDInterventional Cardiology Physician1326021312
- Patricia Geiger, MSN ANPNurse Practitioner1710960471
- Lance Guyett, ACNPNurse Practitioner1598748774
- Jennifer Kielbasa, RPA CPhysician Assistant1942283031
- James Lampasso, MDPulmonary Disease Physician1902889090
- Timothy Musielak, LMHC CASACMental Health Counselor1689805962
Verify Pia L. Musielak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 009366Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average physician assistant in 2024
406 Medicare Part D claims for 61 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Eliquis54 claims
- Metoprolol Succinate49 claims
- Carvedilol41 claims
- Amlodipine Besylate31 claims
- Entresto27 claims
- Atorvastatin Calcium22 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $697.24
10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
Bills Medicare through one group practice
- Erie County Medical Center CorporationBuffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pia L. Musielak among 15,555 physician assistant records in New York
Pia L. Musielak, RPA-C is one of 15,555 physician assistant records with a practice address in New York. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2004 · median 2018 among the 8,158 with a school on file
- Record last updated2007 · 48% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
178 physician assistant records list a practice address in Williamsville
They are 178 of the 3,530 NPPES records with a practice address in Williamsville, and 15,555 physician assistant records in New York.
All 15,555 in New York → Every provider in Williamsville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Gregory Czajka, RPA CWilliamsville, NY 142211740265537
- Tammy Ervolina-Kroll, RPA-CWilliamsville, NY 142211801852777
- Allison Fout, PAWilliamsville, NY 142211275501348
- Jill Hess, PAWilliamsville, NY 142211063471407
- Cara Innus, RPA-CWilliamsville, NY 142211538126388
- Jennifer Kielbasa, RPA CWilliamsville, NY 142211942283031
- Sherry Lyons, RPA-CWilliamsville, NY 142211134109903
- Robin Massing, RPA-CWilliamsville, NY 142211801869284
Common questions
What is Pia L. Musielak, RPA-C's NPI number?
Pia L. Musielak, RPA-C's National Provider Identifier (NPI) is 1194708180, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Pia L. Musielak, RPA-C located?
The NPPES record lists a practice address at 6460 Main St, Williamsville, NY, 14221. Phone: (716) 634-5100. Providers update this record themselves, so call before visiting.
How can I verify Pia L. Musielak, RPA-C's license?
NPPES lists New York license number 009366, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does Pia L. Musielak, RPA-C prescribe under Medicare Part D?
In 2024, Pia L. Musielak, RPA-C had 406 Medicare Part D claims for 61 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Pia L. Musielak, RPA-C's MIPS final score?
The 2023 MIPS final score is 90 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.