Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greenville Health System

General Acute Care Hospital in Greer, SC · enumerated 2014 · authorized official Michael Riordan, President/Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1225457476

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Registry record

Entity type Organization (Type 2)

Legal business name Greenville Health System

Other name <Unavail>

Practice address 315 Medical Pkwy Ste 200, Greer, SC, 29650

Phone (864) 455-6900

Enumeration date Apr 15, 2014

Last updated in NPPES Jul 27, 2016

Taxonomy & classification

282N00000X General Acute Care Hospital Hospitals · License HTL-0906 (SC) Primary

Authorized official

Name Michael Riordan

Title President/Ceo

Phone (864) 455-7978

Other identifiers

Identifier	Type	State	Issuer
400337	Medicaid	SC	-
440063	Medicaid	SC	-
CC2539	Other	SC	MEDICARE RAILROAD
CD6295	Other	SC	MEDICARE RAILROAD
220572	Medicaid	SC	-
42D0681720	Other	SC	CLIA
6510355	Other	SC	AETNA
4791649	Other	SC	CIGNA

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Greenville Health System located?

The practice location on file with NPPES is in Greer, SC.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-07-27. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-27.