Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Treatment Serices

Health Maintenance Organization in Santa Ana, CA · enumerated 2012 · authorized official Caroline Gibson, Councilor.

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

National Provider Identifier

1952655896

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Registry record

Entity type Organization (Type 2)

Legal business name California Treatment Serices

Practice address 2101 E 1st Street, Santa Ana, CA, 92705

Phone (714) 542-3581

Enumeration date Oct 30, 2012

Last updated in NPPES Oct 30, 2012

Taxonomy & classification

302R00000X Health Maintenance Organization Managed Care Organizations Primary

Authorized official

Name Caroline Gibson

Title Councilor

Phone (714) 542-3581

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

Where is California Treatment Serices located?

The practice location on file with NPPES is in Santa Ana, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-10-30. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-30.