Drug and Alcohol Rehab Centers in San Mateo, CA

3 licensed programs

1 with medical detox

2 residential

2 outpatient

2 accept Medi-Cal

San Mateo has 3 licensed addiction treatment programs in San Mateo County. 1 offers medical detox, 2 offer residential treatment, 1 offers intensive outpatient and 2 offer outpatient. 2 report accepting Medi-Cal. Every listing is matched to the California license roll and shows the date we last checked it, and the phone number on each one rings the program itself.

If someone is using every day and has been through withdrawal before, start with a program that can run medical detox. In San Mateo that means Horizon Services, Inc.. For a residential stay, Horizon Services, Inc. and San Mateo Clinic hold residential licenses here.

If the person is stable and has a safe place to live, outpatient care keeps them at home at a fraction of the cost. Caminar Project Ninety, Inc run outpatient programs in San Mateo. Caminar Project Ninety, Inc offer an intensive outpatient schedule.

Licensed programs

  • Caminar Project Ninety, Inc

    Caminar Project Ninety, Inc is a state-certified addiction treatment program in San Mateo, California, offering intensive outpatient, outpatient and sober living. It holds a certified record from the California Department of Health Care Services, number 410001AN, which we last checked on October 9, 2026.

    See full listing

  • Horizon Services, Inc.

    In San Mateo, California, Horizon Services, Inc. is licensed by the state to provide medical detox and residential treatment.

    See full listing

  • San Mateo Clinic

    San Mateo Clinic is a state-licensed addiction treatment program in San Mateo, California, offering residential treatment and outpatient. It runs 3 state-licensed sites in San Mateo that share one admissions line.

    See full listing

Choosing a program in San Mateo

Ask which state record the program holds before you compare anything else. California licenses residential and detox programs and certifies outpatient programs through the Department of Health Care Services; the license line on each listing links to the state’s own record. A program whose website promises a level of care its license does not cover is listed here with what the license shows, not what the website says.

If nothing in San Mateo has an opening, the nearest cities with their own pages are Redwood City (4), East Palo Alto (4), Hayward (7), San Francisco (35) and Oakland (20).

Medi-Cal treatment in San Mateo County is arranged through the county behavioral health access line, which can screen you by phone and refer you to a contracted program. More about treatment in San Mateo County.

Common questions about treatment in San Mateo

Does Medi-Cal cover rehab in San Mateo?

Yes. 2 of the 3 licensed programs in San Mateo report accepting Medi-Cal, including Caminar Project Ninety, Inc and San Mateo Clinic. Medi-Cal treatment is arranged through the county access line, and many programs can check your eligibility on the first call.

Which San Mateo programs offer medical detox?

1 licensed programs in San Mateo offer detox: Horizon Services, Inc.. Ask each whether a nurse is on site overnight and which withdrawals it manages.

How do I know a program is licensed?

Every program on this page is matched to the California Department of Health Care Services license roll, and each listing shows the record it holds and the date we last checked it, with a link to the state’s own list.

Is there intensive outpatient or day treatment in San Mateo?

Yes. Intensive outpatient: Caminar Project Ninety, Inc.

What if nothing in San Mateo has an opening?

The nearest cities with their own pages are Redwood City (4 programs), East Palo Alto (4 programs), Hayward (7 programs). Programs there are listed the same way.

Which San Mateo programs serve adolescents or women only?

Women-only programs: San Mateo Clinic.

Nearby cities

Run a program here?

Listings are free. Claim yours to add photos and correct details, or ask about the featured position on this page.