California has the largest publicly funded addiction treatment system in the United States, with over 2,000 licensed programs serving every county. Whether you have Medi-Cal, no insurance at all, or simply cannot afford private treatment, there are concrete options available — and this guide maps out every one of them.

Medi-Cal coverage for addiction treatment

If you qualify for Medi-Cal (California Medicaid), your addiction treatment is covered at no cost. Since California expanded its Drug Medi-Cal Organized Delivery System in 2024, the range of covered services has grown dramatically. Medi-Cal now covers outpatient treatment, intensive outpatient programs, residential treatment (up to two 90-day episodes per year), withdrawal management (detox), medication-assisted treatment, recovery support services, and case management.

To apply for Medi-Cal, visit coveredca.com or your county social services office. Approval can happen within days for emergency cases. Many treatment centers will help you apply as part of the intake process.

County-funded programs by region

Los Angeles County

LA County operates the largest county behavioral health system in the nation through the Department of Public Health Substance Abuse Prevention and Control (SAPC). The county contracts with over 300 treatment providers offering free services. Call the county helpline at (844) 804-7500 for referrals. Key programs include residential beds at Tarzana Treatment Centers, Prototypes, and Didi Hirsch Mental Health Services.

San Francisco Bay Area

San Francisco Department of Public Health operates a centralized intake system through the Behavioral Health Access Center at (415) 255-3737. Free programs include Westside Community Services, Jelani House, and the Salvation Army Harbor Light Center. Alameda County has walk-in assessments at Cherry Hill Detox and contracts with Thunder Road for youth treatment.

San Diego County

San Diego contracts with the McAlister Institute, Volunteers of America, and other providers for free treatment. The county Access and Crisis Line (888) 724-7240 provides 24/7 referrals. The county expanded residential treatment beds by 40% in 2025.

Sacramento and Central Valley

Sacramento County operates free detox through the Managed Care Access Point. Central Valley counties including Fresno, Kern, and San Joaquin have expanded free residential treatment through DHCS grants. Wait times tend to be shorter than coastal counties.

Nonprofit and faith-based free programs

  • Salvation Army Adult Rehabilitation Centers — Free residential programs in 15 California locations including LA, San Francisco, San Diego, Sacramento, and Fresno
  • Volunteers of America — Free residential treatment in multiple locations, specializing in veterans and families
  • Teen Challenge — Free faith-based residential programs lasting 12 to 18 months across California
  • Union Rescue Mission (LA) — Free residential recovery program in downtown Los Angeles
  • Covenant House (Hollywood) — Free treatment for young adults ages 18 to 24

Sliding-scale private programs

Many private rehab centers in California offer sliding-scale fees based on income. Programs like Phoenix House, Hazelden Betty Ford (Rancho Mirage), and various community health centers set fees as low as $0 to $50 per session based on your ability to pay. Ask any program about their 'ability to pay' or 'charity care' policy.

How to get into treatment today

  • If you have Medi-Cal: Call your managed care plan or the county behavioral health line for immediate referral
  • If you have no insurance: Call SAMHSA at 1-800-662-4357 or 211 for local resources
  • If you need detox now: Go to any emergency room — they are required to stabilize you regardless of insurance
  • If you are a veteran: Contact the VA at (877) 222-8387 for free treatment
  • Search RehabLookup for California treatment centers and filter by free or Medicaid-accepted programs
Cost is never a valid reason to avoid treatment in California. Between Medi-Cal, county programs, and nonprofits, there is a free option available for every person in every county.