Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

William K. Mayfield

Q: What is the NPI number for William K. Mayfield?

The NPI for William K. Mayfield is 1568489573, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Vincennes, IN · enumerated 2006 · authorized official William Mayfield, Physician.

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

National Provider Identifier

1568489573

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name William K. Mayfield

Practice address 625 S 7th St, Vincennes, IN, 47591

Phone (812) 885-0041

Fax (812) 885-0042

Enumeration date Jul 16, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

174400000X Specialist Other Service Providers · License 01036429A (IN) Primary

174400000X Specialist Other Service Providers Secondary

Authorized official

Name William Mayfield

Title Physician

Phone (812) 885-0041

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

Who is the authorized official for William K. Mayfield?

NPPES lists William Mayfield (Physician) as the authorized official for this organization.

What is the NPI number for William K. Mayfield?

The NPI for William K. Mayfield is 1568489573, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.