Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William C Seymour, MSW LCSW

Clinical Social Worker in Evansville, IN · enumerated 2006.

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

National Provider Identifier

1538172556

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Registry record

Entity type Individual (Type 1)

Name William C Seymour

Credential MSW LCSW

Sex Male

Practice address 415 Mulberry St, Evansville, IN, 47713

Phone (812) 423-7791

Fax (812) 422-7558

Enumeration date Aug 14, 2006

Last updated in NPPES Oct 23, 2015

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 34000300A (IN) Primary

Other identifiers

Identifier	Type	State	Issuer
11490890	Other	IN	CAQH
800006273	Other	IN	RAILROAD
000000177011	Other	IN	ANTHEM
100240880	Medicaid	IN	-
839090A	Other	IN	MEDICARE

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

How do I verify William Seymour's NPI record?

Cross-check NPI 1538172556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1538172556 active?

Yes, as of the latest NPPES snapshot, NPI 1538172556 is active (record last updated 2015-10-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-23.