Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Clinton Wayne Simpson, M.D.

Emergency Medicine Physician in Evansville, IN · enumerated 2011.

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

National Provider Identifier

1629367420

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Registry record

Entity type Individual (Type 1)

Name Clinton Wayne Simpson

Credential M.D.

Sex Male

Practice address 600 Mary Street, Evansville, IN, 47747

Phone (812) 450-3405

Fax (812) 450-3099

Enumeration date Apr 1, 2011

Last updated in NPPES Oct 4, 2018

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01079847A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
7100303240	Medicaid	KY	-

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 Clinton Simpson?

The National Provider Identifier (NPI) for Clinton Simpson is 1629367420, a Type 1 (individual) record in the CMS NPPES registry.

Where does Clinton Simpson practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-04.