Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Ernest Earl Clayton

Pharmacist in Greer, SC · enumerated 2012.

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

National Provider Identifier

1538418645

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Registry record

Entity type Individual (Type 1)

Name Mr. Ernest Earl Clayton

Sex Male

Practice address 1325 West Wade Hampton Blvd, Greer, SC, 29651

Phone (864) 801-4120

Enumeration date Sep 5, 2012

Last updated in NPPES Sep 5, 2012

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 12118 (GA) Secondary

183500000X Pharmacist Pharmacy Service Providers · License 5040 (SC) Primary

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 does Ernest Clayton practice?

The practice location on file with NPPES is in Greer, SC. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Ernest Clayton?

The National Provider Identifier (NPI) for Ernest Clayton is 1538418645, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-05.