Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. John P Nairn, M.D.
Ophthalmology Physician in West Mifflin, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528064912
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0014155100016 | Medicaid | PA | - |
| 13361 | Other | PA | ELDER HEALTH PLAN |
| 228107 | Other | PA | CARELINK |
| 4327104 | Other | PA | AETNA MEDICARE |
| 000000147416 | Other | PA | UNISON HEALTH PLAN |
| 3529394 | Other | PA | AETNA HMO |
| 4327104 | Other | PA | AETNA COMMERCIAL |
| 0014155100011 | Medicaid | PA | - |
| 1012821 | Other | PA | GATEWAY HEALTH PLAN |
| 251100359 | Other | PA | INTERGROUP |
| 734378 | Other | PA | HIGHMARK BS |
| 100332 | Other | PA | UPMC HEALTH PLAN |
| 228107 | Other | PA | ADVANTRA/ HEALTH AMERICA |
| P00069161 | Other | PA | RAILROAD MEDICARE |
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.
Frequently asked questions
What is the NPI number for John Nairn?
Where does John Nairn practice?
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-19.