Jan Najdzionek, MD
NPI 1497739833 · Diagnostic Radiology Physician · Williamsville, NY
Jan Najdzionek, MD is a Diagnostic Radiology Physician provider in Williamsville, NY (NPI 1497739833).
Provider details
- NPI number
- 1497739833
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 173965 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-11-30
- Last updated
- 2008-04-23
Frequently asked questions
- What is Jan Najdzionek's NPI number?
- Jan Najdzionek's National Provider Identifier (NPI) is 1497739833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Najdzionek's specialty?
- Jan Najdzionek is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Najdzionek located?
- Jan Najdzionek's practice location on file with NPPES is 100 College Pkwy, Williamsville, NY 14221-6800.
- What is Jan Najdzionek's phone number?
- The practice phone number listed in the NPPES registry for Jan Najdzionek is (716) 636-1902.
- Is Jan Najdzionek's NPI active?
- Yes — Jan Najdzionek's NPI (1497739833) is active in the NPPES registry as of the last update on 2008-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.