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California Treatment Collective, LLC.

Substance Abuse Rehabilitation Facility in Costa Mesa, CA · enumerated 2023 · authorized official Stephen Mcnamara, Authorized Official.

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

National Provider Identifier

1174212591

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Registry record

Entity type Organization (Type 2)
Legal business name California Treatment Collective, LLC.
Practice address 3505 Cadillac Ave Bldg O, Suite 110, Costa Mesa, CA, 92626
Phone (949) 832-6169
Enumeration date May 2, 2023
Last updated in NPPES Apr 15, 2026

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Secondary
324500000X Substance Abuse Rehabilitation Facility Residential Treatment Facilities Primary

Authorized official

Name Stephen Mcnamara
Title Authorized Official
Phone (949) 832-6169

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

Who is the authorized official for California Treatment Collective, LLC.?
NPPES lists Stephen Mcnamara (Authorized Official) as the authorized official for this organization.
What is the NPI number for California Treatment Collective, LLC.?
The NPI for California Treatment Collective, LLC. is 1174212591, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-15.