Addiction and mental health treatment in Ontario, CA
6 treatment centers.
Find by need
- Aegis Treatment Center(909) 563‑7076Substance use · Mental health · Detox · 125 West F Street, Suite 101 · Spanish
- Aegis Treatment Centers, LLC(909) 986‑4550Opioid treatment program · 125 West F Street
- Embrace Life Change(877) 846‑9008Substance use · Mental health · 1354 Carlos Place · Spanish
- New Creation Corporate Headquarters(877) 868‑5730Substance use · Mental health · Detox · 3286 Guasti Road, Suite 100 · Spanish
- New Creation Treatment Centers(909) 366‑4525Substance use · Mental health · 3286 East Guasti Road, Suite 110 · Spanish
- Valley Star(909) 983‑4466Mental health · 316 East E Street, Suite 101 · Spanish
Nearest emergency rooms
- San Antonio Regional Hospital2.4 mi · Upland, CA
- Montclair Hospital Medical Center2.5 mi · Montclair, CA
- Chino Valley Medical Center3.5 mi · Chino, CA
Common questions
How many addiction and mental health treatment centers are in Ontario, California?
SAMHSA’s FindTreatment.gov directory lists 6 treatment centers in Ontario: Aegis Treatment Center, Aegis Treatment Centers, LLC, Embrace Life Change, New Creation Corporate Headquarters, New Creation Treatment Centers and Valley Star.
Which treatment centers in Ontario accept Medicaid?
5 of 6 name Medicaid among the payments they accept: Aegis Treatment Center, Embrace Life Change, New Creation Corporate Headquarters, New Creation Treatment Centers and Valley Star. Ask whether they take your plan.
Is there a treatment center with services in Spanish in Ontario?
Yes. Aegis Treatment Center, Embrace Life Change, New Creation Corporate Headquarters, New Creation Treatment Centers and Valley Star list Spanish among their language services.
Where is the nearest emergency room to Ontario?
Hospitals that list emergency services in Medicare data, near Ontario: San Antonio Regional Hospital, Upland (2.4 mi), Montclair Hospital Medical Center, Montclair (2.5 mi) and Chino Valley Medical Center, Chino (3.5 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