NPI Portal NPI Lookup & Verification

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

William Brent Griffeth

Occupational Therapist in Idaho Falls, ID · enumerated 2006 · practices at Teton Physical Therapy, Inc.

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

National Provider Identifier

1588727879

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Registry record

Entity type Individual (Type 1)
Name William Brent Griffeth
Sex Male
Practice address Idaho Falls, ID, 83404
Phone (208) 529-3355
Fax (208) 529-9581
Enumeration date Dec 18, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OT347 (ID) Primary

Other identifiers

Identifier Type State Issuer
W0673 Other ID BLUE CROSS
000010022488 Other ID BLUE SHIELD

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

Where does William Griffeth practice?
The practice location on file with NPPES is in Idaho Falls, ID. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Griffeth?
The National Provider Identifier (NPI) for William Griffeth is 1588727879, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.