NPI Portal NPI Lookup & Verification

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

Dr. Jeffrey Max Williams, DC

Chiropractor in Pocatello, ID · enumerated 2011.

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

National Provider Identifier

1659678456

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Registry record

Entity type Individual (Type 1)
Name Dr. Jeffrey Max Williams
Credential DC
Sex Male
Practice address Pocatello, ID, 83201
Fax (208) 258-7389
Enumeration date Feb 15, 2011
Last updated in NPPES Apr 24, 2023

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

Taxonomy & licenses

111NR0400X Rehabilitation Chiropractor Chiropractic Providers · License CHIA-1473 (ID) Secondary
111N00000X Chiropractor Chiropractic Providers · License CHIA-1473 (ID) 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
1679854491 Medicaid ID -

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 Jeffrey Williams?
The National Provider Identifier (NPI) for Jeffrey Williams is 1659678456, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jeffrey Williams practice?
The practice location on file with NPPES is in Pocatello, ID. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-24.