Insurance & cost

Does Medicare cover rehab? Addiction treatment for seniors

Published April 15, 2025 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Medicare Part A covers inpatient treatment. Part B covers outpatient and MAT. Part D covers addiction medications.

Part A

Inpatient at hospitals and certified facilities. Includes detox and residential. Standard deductibles apply. 190 lifetime day limit at psychiatric facilities.

Part B

Outpatient therapy, psychiatric evaluations, medication management, PHP, and IOP. Medicare typically pays 80% after deductible.

Part D

Prescription addiction medications including naltrexone and buprenorphine. Methadone for OUD now under Part B.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

Does Medicare pay for drug rehab?

Yes. Inpatient (Part A), outpatient and MAT (Part B), and medications (Part D).

Does Medicare cover Suboxone?

Buprenorphine under Part D. Methadone for OUD under Part B.

How long does Medicare cover rehab?

Subject to medical necessity review. 190 lifetime day limit at psychiatric facilities.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.