John Czajkowski, PA
NPI 1376841676 · Physician Assistant · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Czajkowski, PA is a Physician Assistant provider in Williamsville, NY (NPI 1376841676).
Provider details
- NPI number
- 1376841676
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 014651 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-03-10
- Last updated
- 2017-02-02
Frequently asked questions
- What is John Czajkowski's NPI number?
- John Czajkowski's National Provider Identifier (NPI) is 1376841676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Czajkowski's specialty?
- John Czajkowski is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Czajkowski located?
- John Czajkowski's practice location on file with NPPES is 100 College Pkwy, Williamsville, NY 14221-6800.
- What is John Czajkowski's phone number?
- The practice phone number listed in the NPPES registry for John Czajkowski is (716) 626-0093.
- Does John Czajkowski accept Medicare?
- John Czajkowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Czajkowski's NPI active?
- Yes — John Czajkowski's NPI (1376841676) is active in the NPPES registry as of the last update on 2017-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.