Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Greenville Health System
General Acute Care Hospital in Seneca, SC · enumerated 2014 · authorized official Michael Riordan, President/Ceo.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356760516
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Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| CB9553 | Other | SC | MEDICARE RAILROAD |
| CD7464 | Other | SC | MEDICARE RAILROAD |
| 400783 | Medicaid | SC | - |
| 42D0665869 | Other | SC | CLIA |
| 111717 | Medicaid | SC | - |
| CI4624 | Other | SC | MEDICARE RAILROAD |
| 354643 | Medicaid | SC | - |
| 6510325 | Other | SC | AETNA |
| GP2859 | Medicaid | SC | - |
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 Greenville Health System?
Who is the authorized official for Greenville Health System?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-15.