The complete directory of DHCS-licensed substance use disorder treatment facilities across Southern California’s six-county region, categorized by our four-signal verification framework: active DHCS license, CARF SUD-specific accreditation, SAMHSA 2025 National Directory match, and multi-level-of-care at the facility.

Verification tier summary

42 flagship facilities — meet all four verification signals. Hand-reviewed editorial profiles.
76 verified-tier facilities — active DHCS license + CARF SUD-specific accreditation.
1219 listed-tier facilities — active DHCS licensure confirmed; additional verification signals not established in our most recent review.
1337 total facilities.

Every facility in this directory holds current California DHCS licensure for SUD treatment operation. Tier assignment reflects verification signal density — not care quality. Clinically-serious providers exist across all three tiers. Our verification methodology walks through the framework.

Filter by county

Los Angeles County — 675 facilities
Orange County — 281 facilities
San Diego County — 157 facilities
Riverside County — 115 facilities
San Bernardino County — 54 facilities
Ventura County — 55 facilities

Filter by tier

Flagship facilities — 42 facilities, editorial profiles with full verification detail
Verified-tier facilities — 76 facilities
Listed-tier facilities — 1219 facilities

Filter by program type

Residential + Detox — residential treatment with on-site detoxification
Residential Treatment — residential without detox
Outpatient + IOP — outpatient SUD treatment
Opioid Treatment Programs (OTP) — methadone and buprenorphine dispensing
Day Programs — day-program detox and treatment

Questions about verifying or choosing a specific facility? Call (310) 596-1751

Our editorial team provides framework-based guidance — not facility sales. We accept no referral fees from any facility listed. Calls are informational.

Looking for treatment options in your area? We can help point you in the right direction. (310) 596-1751 — or request a callback.