Medicare coverage for substance use disorder treatment

Opioid treatment programs, counseling, inpatient and outpatient treatment, and the medications Medicare covers for substance use disorders.

Medicare covers substance use disorder treatment when it's reasonable and necessary.

Covered services

• Opioid treatment programs, including medication, counseling and testing, under Part B.
• Outpatient counseling and intensive outpatient programs.
• Inpatient treatment in a hospital under Part A.
• Screening, brief intervention and referral in primary care.
• Medications such as buprenorphine under Part D or Part B depending on how they're given.

Costs

Part B services usually cost 20% after the deductible, though some treatment program costs may be reduced; ask the program. Medigap fills most remaining cost sharing; see Medigap plans explained.

Getting started

A primary care doctor can refer you, and SAMHSA's helpline (1-800-662-4357) can help find programs. For Medicare plan questions in Washington or Florida, Maru Insurance is an independent licensed agency.

Questions people ask

Does Medicare cover addiction treatment?

Yes, when medically necessary.

Are opioid treatment programs covered?

Yes, under Part B.

Is inpatient treatment covered?

Yes, under Part A in a hospital.

Where can I find a program?

Ask your doctor or call SAMHSA's helpline.

Independent educational site. Not affiliated with or endorsed by the U.S. government, the federal Medicare program, or any insurance company. Figures are 2026 amounts published by CMS unless noted; check Medicare.gov for your situation.