Gregory Czajka, RPA C
NPI 1740265537 · Physician Assistant · Williamsville, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Czajka, RPA C is a Physician Assistant provider in Williamsville, NY (NPI 1740265537).
Provider details
- NPI number
- 1740265537
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RPA C
- Sex
- Male
- Sole proprietor
- No
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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$599 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-14
- Last updated
- 2017-01-18
Frequently asked questions
- What is Gregory Czajka's NPI number?
- Gregory Czajka's National Provider Identifier (NPI) is 1740265537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Czajka's specialty?
- Gregory Czajka is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gregory Czajka located?
- Gregory Czajka's practice location on file with NPPES is 180 Park Club Ln, Williamsville, NY 14221-5263.
- What is Gregory Czajka's phone number?
- The practice phone number listed in the NPPES registry for Gregory Czajka is (716) 839-9402.
- Does Gregory Czajka accept Medicare?
- Gregory Czajka is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Czajka's NPI active?
- Yes — Gregory Czajka's NPI (1740265537) is active in the NPPES registry as of the last update on 2017-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.