Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Cassie J Harrington, MD
Family Medicine Physician in Erie, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538164199
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| P00170446 | Other | PA | RR MEDICARE |
| 0018600340005 | Medicaid | PA | - |
| 02175331 | Other | NY | NY MEDICAL ASSISTANCE |
| 1304473 | Other | PA | BLUE SHIELD |
| 00027091801 | Other | NY | UNIVERA |
| 159494 | Other | PA | UNISON |
| 302649 | Other | PA | UPMC |
| 2256400 | Other | OH | OH MEDICAL ASSISTANCE |
| 3729974 | Other | PA | AETNA |
| P002277 | Other | PA | GATEWAY |
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
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-10.