Addiction and mental health treatment in San Mateo, CA
3 treatment centers.
- HealthRIGHT 360(415) 235‑8254Substance use
- Mills Peninsula Medical Center(650) 696‑4600Substance use · Mental health · 100 South San Mateo Drive
- Project Ninety Inc(650) 579‑7881Substance use · 416 2nd Avenue
Nearest emergency rooms
- San Mateo Medical Center3.3 mi · San Mateo, CA
- Peninsula Medical Center3.7 mi · Burlingame, CA
- Kaiser Foundation Hospital - Redwood City7.9 mi · Redwood City, CA
Common questions
How many addiction and mental health treatment centers are in San Mateo, California?
SAMHSA’s FindTreatment.gov directory lists 3 treatment centers in San Mateo: HealthRIGHT 360, Mills Peninsula Medical Center and Project Ninety Inc.
Which treatment centers in San Mateo accept Medicaid?
3 of 3 name Medicaid among the payments they accept: HealthRIGHT 360, Mills Peninsula Medical Center and Project Ninety Inc. Ask whether they take your plan.
Is there a treatment center with services in Spanish in San Mateo?
None of the listed facilities here lists Spanish. SAMHSA’s National Helpline (1-800-662-4357) answers in Spanish and can refer you.
Where is the nearest emergency room to San Mateo?
Hospitals that list emergency services in Medicare data, near San Mateo: San Mateo Medical Center, San Mateo (3.3 mi), Peninsula Medical Center, Burlingame (3.7 mi) and Kaiser Foundation Hospital - Redwood City, Redwood City (7.9 mi). In an emergency, call 911.
Source: SAMHSA, FindTreatment.gov (National Directory of Mental Health and Substance Use Treatment Facilities), retrieved 2026-11-11. SAMHSA publishes no separate release date for this live directory. The directory has no quality ratings, and this list is not a ranking or a recommendation. Methodology