Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
John Zelazowski
Optometrist in Cheswick, PA · enumerated 2005 · practices at Alle-Kiski Eye Care Inc..
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497736227
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 4063390001 | Other | - | DEMERC |
| 138595 | Other | - | EYEMED |
| 001806272000 | Medicaid | PA | - |
| 0017540 | Other | - | DORAL |
| 21149 | Other | - | CLARITY VISION |
| 825201 | Other | PA | HIGHMARK |
| 150874 | Other | - | HEALTH ASSURANCE |
| 311359 | Other | - | UPMC |
| 138595 | Other | - | COLE MANAGED VISION |
| 150874 | Other | - | HEALTH AMERICA |
| 150874 | Other | - | ADVANTA |
| 397307 | Other | - | NVA |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.