Key takeaway
Medicare can cover substance use treatment, but benefits differ across Part A inpatient, Part B outpatient, and Advantage networks. Detox, hospital stays, and OTP services have specific rules. Verify before you admit. Call or text (800) 653-9376 for help naming Medicare coverage questions.
Last updated: Wed Oct 07 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Medicare can pay for substance use care. It does not automatically pay for every private residential brochure. Parts and plan types change the answer.
Call 911 for emergencies. Call or text 988 for a crisis.
Original Medicare sketch
Part A: inpatient hospital services when criteria are met, with deductibles and day rules. Part B: outpatient counseling, some intensive outpatient-style services, and clinician visits. Always confirm current Medicare.gov details for your situation.
Siblings: Medicare insurance hub, Medicare opioid treatment programs, Medicare partial hospitalization.
Advantage plans
Networks, prior authorization, and preferred facilities matter. A bed that is "great" but out of network can become a surprise bill.
What to ask before admit
- Is this level of care covered for substance use disorder under my plan?
- What is my authorization number?
- What is my expected cost share?
- What happens if I need more days?
Broker filter
A caller who says "Medicare covers everything, just fly tomorrow" without checking Part A versus Advantage is guessing with your debit card.
Next step
Medicare.gov, your Advantage portal, FindTreatment.gov, or call or text (800) 653-9376.
Call or text (800) 653-9376 when you need help verifying Medicare coverage for detox or rehab levels of care.
Additional Resources
Sources cited on this page:
- Medicare.gov: Mental health and substance use disorder services
- CMS: Opioid Treatment Programs
- SAMHSA FindTreatment.gov
- SAMHSA National Helpline
- 988 Suicide & Crisis Lifeline
- NIDA: Principles of Drug Addiction Treatment
Common Questions
Does Original Medicare cover rehab?
Part A can cover inpatient hospital treatment when criteria are met. Part B covers many outpatient services. Details and deductibles apply.
What about Medicare Advantage?
Advantage plans must cover at least Original Medicare benefits but use networks and prior auth. Check your plan documents.
Does Medicare cover methadone OTP care?
Medicare covers opioid treatment program services under defined rules. See Medicare opioid treatment programs.
Will Medicare pay for luxury residential?
Medicare does not work like a blank check for amenity-heavy private residential. Medical necessity and setting rules matter.
How is this different from Medicaid?
Medicaid is state-federal for low-income eligibility. Medicare is primarily age 65+ or disability. See does Medicaid cover rehab.