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Does Medicare Cover Rehab?

Medicare covers substance abuse treatment for adults 65+ and those with disabilities. Part A covers inpatient hospital-based treatment. Part B covers outpatient counseling, group therapy, and some MAT medications. Medicare Advantage plans may offer additional behavioral health benefits.

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⚡ Quick Answer

Yes, Medicare covers addiction treatment. Under the Mental Health Parity Act, Medicare must cover substance use disorder treatment — including Hospital-Based Detox (Part A), Inpatient Rehab in Hospitals (Part A), Outpatient Counseling (Part B), Group Therapy (Part B), and more. 4 plan types accepted. Average out-of-pocket: $0–$5,000. Call (833) 546-3513 for free verification.

What Does Medicare Cover for Addiction Treatment?

Medicare provides coverage for substance use disorder treatment as part of its behavioral health benefits. Under federal law — specifically the Mental Health Parity and Addiction Equity Act (MHPAEA) and the Affordable Care Act — Medicare is required to cover addiction treatment at the same level as other medical conditions.

This means your Medicare plan covers multiple levels of care, from initial detox through long-term outpatient support. The specific costs, referral requirements, and network restrictions depend on your plan type — see the plan comparison below.

At RehabHive, we work with Medicare daily and can verify your specific benefits in under 5 minutes. We will tell you exactly what is covered, what your out-of-pocket costs will be, and which treatment centers near you accept your plan.

Medicare Plan Types & Coverage

Your coverage level depends on your specific Medicare plan.

Plan Network Type Pre-Auth Required Out-of-Network
Medicare Part A (Hospital) PPO/Open Usually ✓ Yes
Medicare Part B (Outpatient) PPO/Open Usually ✓ Yes
Medicare Part D (Prescriptions) PPO/Open Usually ✓ Yes
Medicare Advantage PPO/Open Usually ✓ Yes

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How to Verify Your Medicare Benefits

1 Call 1-800-MEDICARE (1-800-633-4227)
2 Ask about substance abuse treatment coverage
3 Verify facility accepts Medicare assignment
4 Check Part A vs Part B coverage for your treatment
5 Confirm any Medicare Advantage supplemental benefits
6 Or call RehabHive at (833) 546-3513 for free verification

What Will You Pay Out-of-Pocket with Medicare?

Typical costs after Medicare coverage is applied.

Treatment Level In-Network Cost Out-of-Network Cost Typical Duration
Medical Detox $0–$500 $500–$2,000 3–7 days
Inpatient Rehab $500–$3,000 $2,000–$10,000 28–90 days
PHP $200–$1,500 $1,000–$5,000 4–8 weeks
IOP $100–$1,000 $500–$3,000 8–12 weeks
Outpatient $20–$50/visit $50–$150/visit Ongoing
MAT $10–$75/mo $50–$200/mo 6–24 months

* Costs are estimates assuming deductible is met. Actual costs depend on your specific Medicare plan, facility, and location.

Medicare & Rehab: Frequently Asked Questions

Does Medicare cover rehab?
Yes. Medicare covers substance abuse treatment for adults 65+ and those with disabilities. Part A covers inpatient hospital-based treatment. Part B covers outpatient counseling, group therapy, and some MAT medications. Medicare Advantage plans may offer additional behavioral health benefits.
How do I verify my Medicare benefits?
Call 1-800-MEDICARE (1-800-633-4227) Ask about substance abuse treatment coverage Verify facility accepts Medicare assignment Check Part A vs Part B coverage for your treatment Confirm any Medicare Advantage supplemental benefits Or call RehabHive at (833) 546-3513 for free verification
What treatments does Medicare cover?
Medicare covers: Hospital-Based Detox (Part A), Inpatient Rehab in Hospitals (Part A), Outpatient Counseling (Part B), Group Therapy (Part B), MAT (Part B/D), Screening & Assessment (Part B).
Does Medicare require pre-authorization?
Most Medicare plans require pre-authorization for inpatient and residential treatment. Outpatient services may not require pre-auth. Your treatment facility typically handles this process.
What Medicare plans cover addiction treatment?
Available plans include: Medicare Part A (Hospital), Medicare Part B (Outpatient), Medicare Part D (Prescriptions), Medicare Advantage. All must cover substance use disorder treatment under the Mental Health Parity Act.
How much does rehab cost with Medicare?
Out-of-pocket costs with Medicare typically range from $0 to $5,000 depending on your plan, deductible, and level of care. Most plans cover 60-90% of treatment costs after the deductible. In-network facilities cost less than out-of-network.
Can I use Medicare for out-of-state rehab?
Most Medicare plans provide out-of-state coverage, though benefits may differ for out-of-network facilities. PPO plans typically offer the best out-of-state coverage. Contact your plan for specific details.
What if Medicare denies my claim?
You have the right to appeal any denial. Request a written explanation from Medicare, gather supporting documentation from your treatment provider, and file a formal appeal. Under the Mental Health Parity Act, Medicare cannot impose stricter limits on rehab than on other medical care.

Your Rights with Medicare

Mental Health Parity Act

Medicare must cover addiction treatment at the same level as physical health conditions. They cannot impose higher copays, stricter visit limits, or more restrictive pre-authorization for rehab.

Right to Appeal

If Medicare denies your claim, you have the legal right to appeal. Request a written explanation and file a formal appeal. Many denials are overturned — especially with supporting documentation from your treatment provider.

Sources

  1. U.S. Department of Labor — Mental Health Parity and Addiction Equity Act
  2. HealthCare.gov — Mental Health & Substance Abuse Coverage
  3. SAMHSA — National Helpline (1-800-662-4357)

Last updated: March 17, 2026 • Reviewed by RehabHive editorial team

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