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Opioid treatment programs (methadone clinics) in Massachusetts

146 treatment centers. Facilities SAMHSA lists as an opioid treatment program (OTP) or as a federally certified opioid treatment program. Certified OTPs are the programs allowed to give methadone for opioid use disorder; many also offer buprenorphine or naltrexone.

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All 146 in Massachusetts

Common questions

Opioid treatment programs (methadone clinics) in Massachusetts: how many are there?

SAMHSA’s FindTreatment.gov directory lists 146 treatment centers in Massachusetts that match (28% of the 514 listed in the state). Facilities SAMHSA lists as an opioid treatment program (OTP) or as a federally certified opioid treatment program. Certified OTPs are the programs allowed to give methadone for opioid use disorder; many also offer buprenorphine or naltrexone.

Which cities in Massachusetts have the most?

Boston (7), Worcester (7), New Bedford (6), Fall River (5) and Greenfield (5).

All treatment centers in Massachusetts Drug and alcohol treatment (rehab)Mental health treatment centersDetox centersResidential and inpatient treatmentTreatment centers that accept MedicaidTreatment centers that accept MedicareFree and low-cost treatmentTreatment centers with services in Spanish Opioid treatment programs (methadone clinics): all states Hospitals in Massachusetts Addiction and mental health treatment centers

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