John E. Czajkowski, PA
Physician Assistant · Williamsville, NY
John E. Czajkowski, PA is a physician assistant with a practice address in Williamsville, New York, and NPI 1376841676, issued on Mar 10, 2011. Check the license (New York 014651, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John E. Czajkowski
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 014651 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 College Pkwy, Williamsville, NY 14221
- Phone
- (716) 626-0093
- Enumerated
- Mar 10, 2011
- Record last updated
- Feb 2, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 15,555 in New York → Look up another NPI →
Also registered at 100 College Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Steven ChristensenDiagnostic Radiology Physician1811971971
- Corine Cicchetti, MDPhysical Medicine & Rehabilitation Physician1639339716
- Michael Cicchetti, MDPhysical Medicine & Rehabilitation Physician1164644183
Verify John E. Czajkowski 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 014651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average physician assistant in 2024
11 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
John E. Czajkowski among 15,555 physician assistant records in New York
John E. Czajkowski, PA 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 2011, is newer than 29% of them.
- NPI issued2011 · 29% of these records are older, 69% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2017 · 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 John E. Czajkowski, PA's NPI number?
John E. Czajkowski, PA's National Provider Identifier (NPI) is 1376841676, issued on Mar 10, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John E. Czajkowski, PA located?
The NPPES record lists a practice address at 100 College Pkwy, Williamsville, NY, 14221. Phone: (716) 626-0093. Providers update this record themselves, so call before visiting.
How can I verify John E. Czajkowski, PA's license?
NPPES lists New York license number 014651, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
How much does John E. Czajkowski, PA prescribe under Medicare Part D?
In 2024, John E. Czajkowski, PA had 11 Medicare Part D claims; 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.