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

William R Barnes Jr., PTA

Physical Therapy Assistant in Tempe, AZ · enumerated 2006.

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

National Provider Identifier

1225104904

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Registry record

Entity type Individual (Type 1)
Name William R Barnes Jr.
Credential PTA
Sex Male
Practice address Tempe, AZ, 85283
Phone (480) 839-8552
Fax (480) 752-7978
Enumeration date Nov 27, 2006
Last updated in NPPES Jan 23, 2013

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

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTA1988 (AR) Secondary
225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License P160197428 (WA) Primary

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

How do I verify William Barnes's NPI record?
Cross-check NPI 1225104904 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1225104904 active?
Yes, as of the latest NPPES snapshot, NPI 1225104904 is active (record last updated 2013-01-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-01-23.