In crisis? Call or text 988 (Suicide & Crisis Lifeline) or 911. SAMHSA's National Helpline: 1-800-662-HELP (4357) — free, confidential, 24/7.

Rancho San Antonio

Rancho San Antonio is an addiction treatment facility at 21000 Plummer Street in Chatsworth, California, offering partial hospitalization or residential treatment, outpatient treatment, and medication-assisted treatment, according to its SAMHSA FindTreatment.gov listing as of April 10, 2026. The same record also lists opioid treatment medications. Payment options listed in the record include Federal, or any government funding for substance use treatment programs and Medicaid. The directory lists 818-882-6400 as the facility's phone number. All details on this page come from that federal record and should be confirmed directly with the facility.

21000 Plummer Street, Chatsworth, CA, 91311

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Contact & Location

Address: 21000 Plummer Street, Chatsworth, CA, 91311

Phone: 818-882-6400

Website: https://www.ranchosanantonio.org/

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Services & Programs

Treatment Types

  • Opioid Medication Service Components
  • Opioid Treatment Medications
  • Outpatient
  • Partial Hospitalization / Residential
  • Substance Use Medication-Assisted Treatment

Insurance & Payment

  • Federal, or any government funding for substance use treatment programs
  • Medicaid

Languages & Accessibility

  • Sign language services for the deaf and hard of hearing
  • Spanish

Other facilities in Chatsworth

Other facilities in California

View all Chatsworth facilities →

Levels of care this record lists, across California: Residential · Medication-Assisted Treatment · Outpatient · Partial Hospitalization (PHP)

Need Help Deciding?

Contact Rancho San Antonio directly at 818-882-6400, or call the SAMHSA National Helpline for free, confidential referrals 24/7.

SAMHSA Helpline: 1-800-662-HELP
Disclaimer: Facility information on this page is sourced from the SAMHSA FindTreatment.gov directory and provided for informational purposes only. Rehab Connect USA is an independent directory and is not affiliated with, does not endorse, and does not guarantee the quality of care at any listed facility. Verify services, licensure, and insurance acceptance directly with the facility before making treatment decisions. If you or someone you know needs immediate help, call the SAMHSA National Helpline at 1-800-662-HELP (4357) -- free, confidential, 24/7.