Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

The River Source

Q: What is the NPI number for The River Source?

The NPI for The River Source is 1336454867, a Type 2 (organization) record in the CMS NPPES registry.

Substance Abuse Rehabilitation Facility in Mesa, AZ · enumerated 2010 · authorized official Phillip Westbrooks, President and Ceo.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1336454867

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Registry record

Entity type Organization (Type 2)

Legal business name The River Source

Practice address 108 E 2nd Ave, Mesa, AZ, 85210

Phone (888) 687-7332

Fax (480) 827-1637

Enumeration date Aug 9, 2010

Last updated in NPPES Jan 18, 2017

Taxonomy & classification

324500000X Substance Abuse Rehabilitation Facility Residential Treatment Facilities · License BH-3428 (AZ) Primary

Authorized official

Name Phillip Westbrooks

Title President and Ceo

Phone (480) 206-3999

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

Who is the authorized official for The River Source?

NPPES lists Phillip Westbrooks (President and Ceo) as the authorized official for this organization.

What is the NPI number for The River Source?

The NPI for The River Source is 1336454867, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-01-18.