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Drug & alcohol rehabs near Ontario, CA

Ontario has 4 licensed addiction treatment centers inside the city, and 99 within 25 miles, including facilities in Upland, Chino, Claremont, and 26 other nearby communities. That includes 38 medical detox programs and 74 offering medication-assisted treatment, and 55 of these facilities report accepting Medicaid.

Not sure what to search for? Try the guided finder — answer a few questions and see treatment centers that may fit.

Medical Detox (remove filter) Showing 10 of 37 medical detox centers
Ontario, CA · 1.1 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+4
Call View details Details from public records · last checked Nov 10, 2026
Upland, CA · 2 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Medical DetoxResidential / Inpatient+1
Call View details Details from public records · last checked Nov 10, 2026
Upland, CA · 2.5 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+5
Call View details Details from public records · last checked Nov 10, 2026
Upland, CA · 2.5 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+5
Call View details Details from public records · last checked Nov 10, 2026
Ontario, CA · 2.5 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+4
Call View details Details from public records · last checked Nov 10, 2026
Upland, CA · 3.2 mi away
Medication-Assisted Treatment (MAT)Medical DetoxResidential / InpatientTelehealth
Call View details Details from public records · last checked Nov 10, 2026
Claremont, CA · 6.4 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+3
Call View details Details from public records · last checked Nov 10, 2026
Rancho Cucamonga, CA · 7.9 mi away
Hospital InpatientMedication-Assisted Treatment (MAT)Partial Hospitalization (PHP)Outpatient+4
Call View details Details from public records · last checked Nov 10, 2026
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Common questions about addiction treatment near Ontario

Answers computed from the licensed facilities in this area's data, updated as listings change.

Insurance & payment

How coverage and cost work at treatment centers near Ontario.

Do rehabs near Ontario accept Medicaid?

Yes. 4 facilities in Ontario report accepting Medicaid, and 55 do within 25 miles. The closest include Embrace Life Change (1.1 mi), CLARE Matrix (1.6 mi) and Aegis Treatment Center (1.7 mi).

Are there free or state-funded rehab options near Ontario?

Yes. 54 treatment centers within 25 miles of Ontario report state-financed care, SAMHSA block grant funding, payment assistance, or free treatment for people who cannot pay.

What if I don't have insurance?

You can still get treatment near Ontario without insurance: 79 centers within 25 miles report accepting self-pay, and 27 of them offer a sliding-fee scale based on income.

Levels of care

The kinds of treatment available near Ontario.

Is there medical detox near Ontario?

Yes. 3 facilities in Ontario offer medical detox, and 38 do within 25 miles. The closest include Embrace Life Change (1.1 mi), Aegis Treatment Center (1.7 mi) and Inland Valley Drug and Alcohol (2 mi).

Can I get medication-assisted treatment (MAT) near Ontario?

Yes. 74 treatment centers within 25 miles of Ontario offer medication-assisted treatment (medications like buprenorphine or methadone combined with counseling).

Need help right now?

If you or someone else is in immediate danger, call 911. For a mental health or suicide crisis, call or text 988 — free, confidential, and available 24/7.

Call or text 988