Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Joseph Pate, RADT-I

Addiction (Substance Use Disorder) Counselor in Riverside, CA · enumerated 2014.

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

National Provider Identifier

1215334230

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Registry record

Entity type Individual (Type 1)

Name Mr. William Joseph Pate

Credential RADT-I

Sex Male

Practice address 4440 University Ave, Riverside, CA, 92501

Phone (951) 505-0312

Fax (951) 328-2618

Enumeration date Nov 20, 2014

Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License R1641014 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is William Pate?

William Pate is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.