Nikki Antoszewski, PA-C
Physician Assistant · Pittsburgh, PA
Nikki Antoszewski, PA-C is a physician assistant with a practice address in Pittsburgh, Pennsylvania, and NPI 1649555350, issued on Oct 13, 2011. Check the license (Pennsylvania MA055228, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nikki Antoszewski
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- MA055228 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Bower Hill RD, Pittsburgh, PA 15243
- Phone
- (412) 942-4000
- Enumerated
- Oct 13, 2011
- Entity
- Type 1 · individual
Also registered at 1000 Bower Hill RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kavya ArvindStudent in an Organized Health Care Education/Training Program1225968126
- Aniket Asees, BAStudent in an Organized Health Care Education/Training Program1063201549
- Ashley AshaoluAnesthesiology Physician1124575782
- Kayleigh Askin, MDStudent in an Organized Health Care Education/Training Program1699560003
Verify Nikki Antoszewski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license MA055228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
81% fewer Medicare Part D claims than the average physician assistant in 2024
159 Medicare Part D claims for 117 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Oxycodone Hcl30 claims
- Prednisone26 claims
- Cephalexin15 claims
- Azithromycin11 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.
913 physician assistant records list a Pittsburgh practice address
They are 913 of the 28,866 NPPES records with a Pittsburgh practice address, and 7,836 physician assistant records in Pennsylvania.
All 913 in Pittsburgh → All 7,836 in Pennsylvania → Every provider in Pittsburgh →
Other physician assistant records in Pennsylvania
- Matthew AbadLansdowne, PA1720113350
- Ariane Abadi, PA-CPhiladelphia, PA1619641685
- Rama Abbireddy, PABethlehem, PA1912887555
- Marianne Abdalah, PASewickley, PA1346088473
- Donia Abdalla, MMSC, PA-CHarrisburg, PA1164376851
- Raneem Abdelaziz, PA-CQuakertown, PA1003764713
- Safiyya Abdul-Ghani, PAOaks, PA1689904161
- Lauren Abdul-Malak, PAAbington, PA1083196117
- Katherine Abel, PA-CSteelton, PA1972944437
- Mark Abel, PA-CSouth Abington Township, PA1710131610
Common questions
What is Nikki Antoszewski, PA-C's NPI number?
Nikki Antoszewski, PA-C's National Provider Identifier (NPI) is 1649555350, issued on Oct 13, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Nikki Antoszewski, PA-C located?
The NPPES record lists a practice address at 1000 Bower Hill RD, Pittsburgh, PA, 15243. Phone: (412) 942-4000. Providers update this record themselves, so call before visiting.
How can I verify Nikki Antoszewski, PA-C's license?
NPPES lists Pennsylvania license number MA055228, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Nikki Antoszewski, PA-C prescribe under Medicare Part D?
In 2024, Nikki Antoszewski, PA-C had 159 Medicare Part D claims for 117 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.