Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Sean Irvin, PAC

Surgical Physician Assistant in Easley, SC · enumerated 2006.

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

National Provider Identifier

1114938768

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Registry record

Entity type Individual (Type 1)

Name William Sean Irvin

Credential PAC

Sex Male

Practice address 112 John St, Suite 201, Easley, SC, 29640

Phone (864) 850-2663

Fax (864) 306-0012

Enumeration date Aug 10, 2006

Last updated in NPPES Jan 28, 2013

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 153 (SC) Primary

Other identifiers

Identifier	Type	State	Issuer
0335PA	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Irvin?

The National Provider Identifier (NPI) for William Irvin is 1114938768, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Irvin practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-28.