Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Douglas Smiley, DC

Q: What is the NPI number for John Smiley?

The National Provider Identifier (NPI) for John Smiley is 1508893546, a Type 1 (individual) record in the CMS NPPES registry.

Chiropractor in Colcord, OK · enumerated 2006.

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

National Provider Identifier

1508893546

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Registry record

Entity type Individual (Type 1)

Name Dr. John Douglas Smiley

Credential DC

Sex Male

Practice address Colcord, OK, 74338

Phone (918) 422-6118

Fax (918) 422-6192

Enumeration date Jun 26, 2006

Last updated in NPPES Dec 18, 2008

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 2567 (OK) Primary

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
100832070A	Medicaid	OK	—

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 John Smiley?

The National Provider Identifier (NPI) for John Smiley is 1508893546, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Smiley practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-18.