Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jonathan David Diaz, D.C.

Chiropractor in West Frankfort, IL · enumerated 2008.

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

National Provider Identifier

1861660102

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Registry record

Entity type Individual (Type 1)

Name Dr. Jonathan David Diaz

Credential D.C.

Sex Male

Practice address 607 W Oak St, West Frankfort, IL, 62896

Phone (618) 435-2500

Enumeration date Feb 20, 2008

Last updated in NPPES Feb 20, 2008

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers Primary

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

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

What is the NPI number for Jonathan Diaz?

The National Provider Identifier (NPI) for Jonathan Diaz is 1861660102, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jonathan Diaz practice?

The practice location on file with NPPES is in West Frankfort, IL. 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 2008-02-20.