Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greenville Health System

Psychiatric Hospital in Greenville, SC · enumerated 2006 · authorized official Michael Riordan, Chief Executive Officer.

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

National Provider Identifier

1043259542

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Registry record

Entity type Organization (Type 2)

Legal business name Greenville Health System

Other name <Unavail>

Practice address 701 Grove Rd, Greenville, SC, 29605

Phone (864) 455-8988

Enumeration date Jun 6, 2006

Last updated in NPPES Jun 23, 2014

Taxonomy & classification

283Q00000X Psychiatric Hospital Hospitals · License HTL-343 (SC) Primary

Authorized official

Name Michael Riordan

Title Chief Executive Officer

Phone (864) 455-7978

Other identifiers

Identifier	Type	State	Issuer
354643	Medicaid	SC	-
100020303001	Other	SC	APS
111717	Medicaid	SC	-
20008400	Other	SC	SELECT HEALTH
GP0646	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.

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Frequently asked questions

Where is Greenville Health System located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-06-23. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-23.