Does Medicare Cover Drug and Alcohol Rehab? (2026)

Direct Answer: What Medicare Covers for Addiction Treatment in 2026

Yes, Medicare covers addiction treatment in 2026, but Original Medicare has a key gap: it does not cover residential non-hospital rehab programs (the standard 28-day or 90-day live-in programs). What it does cover: hospital-based inpatient detox under Part A, outpatient counseling and medication-assisted treatment at SAMHSA-certified opioid treatment programs (OTPs) under Part B, and oral MAT prescriptions under Part D. Medicare Advantage plans frequently fill the residential rehab gap.

What Original Medicare Covers for Drug and Alcohol Treatment

Original Medicare covers addiction treatment across three of its parts. Medicare Part A covers medically necessary inpatient detoxification in a hospital or Medicare-certified facility. To qualify, a doctor must certify that you need medically supervised withdrawal management, which typically applies to alcohol withdrawal with seizure risk, sedative withdrawal, and opioid withdrawal with severe complications. A typical hospital detox stay runs 3 to 7 days. In 2026, Part A costs include the $1,736 inpatient deductible for days 1 to 60. After that, coinsurance applies.

Medicare Part B is the main coverage vehicle for outpatient addiction services. Part B covers individual and group psychotherapy for substance use disorder, intensive outpatient programs (IOPs), substance abuse counseling, and, critically, the full bundled OTP benefit for opioid use disorder. The OTP bundle covers all medically necessary services for opioid use disorder treatment at a SAMHSA-certified opioid treatment program in one weekly payment: counseling, toxicology tests, MAT medications including methadone and injectable buprenorphine (Sublocade), and take-home doses. After meeting the 2026 Part B deductible of $283, you pay 20% coinsurance for outpatient SUD services, and Medigap can cover that coinsurance.

Medicare Part D covers oral MAT prescriptions filled at a retail pharmacy. Oral buprenorphine products (Suboxone film, Subutex tablets), oral naltrexone, disulfiram (Antabuse), and acamprosate are all Part D-covered drugs. The 2026 Part D out-of-pocket cap of $2,100 provides meaningful protection for patients on monthly buprenorphine, since brand-name Suboxone lists at roughly $500 to $600 per month before insurance. Note that methadone dispensed at an OTP is NOT billed through Part D; it is part of the OTP bundle under Part B.

What Medicare Advantage May Add in 2026

Medicare Advantage plans (Part C) must cover everything Original Medicare covers, and many go further for substance use disorder treatment. The most important addition is non-hospital residential rehab: private 28-day or 90-day programs that Original Medicare does not pay for. Not all Medicare Advantage plans include this benefit, and those that do often apply day limits and prior authorization requirements, but coverage is increasingly common. According to CMS data, more than half of Medicare Advantage plans nationally offer some supplemental behavioral health benefit beyond Original Medicare's baseline.

To find out whether a specific Medicare Advantage plan covers residential rehab, look for the plan's Evidence of Coverage (EOC) document and search for 'residential,' 'substance use,' or 'behavioral health.' The Medicare Plan Finder at medicare.gov/plan-compare lets you filter for mental health and substance use benefits by ZIP code. Medicare Advantage's Annual Enrollment Period runs October 15 to December 7, 2026, with coverage starting January 1, 2027. The Medicare Advantage Open Enrollment Period runs January 1 to March 31, 2026, and allows one plan switch.

Medication-Assisted Treatment (MAT): How Medicare Covers It

Medication-assisted treatment for opioid use disorder received a significant Medicare upgrade in 2020 when CMS established the OTP benefit bundle under Part B. Before that change, methadone for addiction treatment was not covered by Medicare at all. The 2026 OTP bundle pays a SAMHSA-certified opioid treatment program a bundled weekly rate that covers all counseling, all toxicology testing, and all MAT medications dispensed at or by the OTP, including methadone and injectable buprenorphine (Sublocade). This means the per-visit cost to the patient is limited to the Part B coinsurance of 20% of the Medicare-approved rate for the bundle, after the 2026 deductible of $283.

Oral buprenorphine prescribed by a qualifying practitioner in an office-based setting and filled at a pharmacy is billed through Part D, not Part B. Medicare Part B also covers naltrexone (Vivitrol) as a monthly injectable administered at a physician's office. For alcohol use disorder, Part B covers the annual alcohol misuse screening at no cost, brief counseling visits, and outpatient behavioral health counseling. Part D covers oral naltrexone, acamprosate, and disulfiram (Antabuse) for alcohol use disorder.

Cost Without Coverage in 2026

Without Medicare or any other insurance, the out-of-pocket cost of addiction treatment in 2026 is substantial. Inpatient hospital detox typically costs $1,500 to $3,500 per day for a medically managed stay, making a 5-day detox $7,500 to $17,500 before any self-pay discount. Residential 28-day rehab programs range from $6,000 at lower-cost nonprofit programs to $60,000 or more at luxury facilities. Outpatient counseling runs $100 to $300 per session, and intensive outpatient programs (IOPs) typically cost $250 to $500 per day. Monthly buprenorphine (Suboxone) at retail pharmacy pricing without insurance runs $150 to $600 per month depending on formulation and pharmacy; injectable naltrexone (Vivitrol) costs roughly $1,700 to $2,000 per monthly injection without coverage.

Medicare beneficiaries who qualify should also check Medicaid eligibility, since about 12 million Americans are dual-eligible (both Medicare and Medicaid). Medicaid fills the gaps Medicare leaves in addiction treatment, including residential non-hospital stays (in states with 1115 waivers), recovery support services, and peer counseling. Low-income Medicare beneficiaries who receive Extra Help (the Part D Low-Income Subsidy) pay significantly reduced amounts for MAT prescriptions at the pharmacy.

How to Find Medicare-Covered Addiction Treatment

Finding a Medicare-enrolled substance use treatment provider requires a few specific steps. For outpatient OTP services (methadone, injectable buprenorphine, counseling bundle), use SAMHSA's Behavioral Health Treatment Locator at findtreatment.gov or call 1-800-662-HELP (4357) and ask for Medicare-enrolled OTPs in your area. Not every substance use disorder clinic is Medicare-enrolled; verify enrollment status before starting treatment or you will receive no Medicare reimbursement.

For Medicare Advantage, use the Plan Finder at medicare.gov/plan-compare to compare SUD benefits by ZIP code. Request the plan's Evidence of Coverage for the full benefit description. For prior authorization approvals, ask your treatment provider to submit the initial authorization request; if denied, you have the right to a fast appeal (expedited redetermination) within 72 hours if the delay would seriously jeopardize your health.

Alternatives When Medicare Does Not Cover Residential Rehab

Original Medicare's exclusion of non-hospital residential rehab is the most significant gap for people seeking full inpatient treatment programs. Several concrete alternatives exist. First, Medicare Advantage: switching to a Medicare Advantage plan that covers residential rehab during the Annual Enrollment Period (October 15 to December 7, 2026) is the most direct solution. Second, SAMHSA-funded community programs: SAMHSA's Substance Abuse Prevention and Treatment Block Grant funds state programs that provide free or sliding-scale residential rehab for adults without adequate insurance coverage; contact your state substance use agency or call 1-800-662-HELP.

Third, Veterans Affairs (VA): veterans enrolled in VA healthcare receive comprehensive SUD treatment including residential rehab at VA facilities, often with no out-of-pocket cost. Fourth, Medicaid dual eligibility: if income qualifies, a Medicare beneficiary may also qualify for Medicaid (dual-eligible), which in most states covers the residential stays Medicare does not. Fifth, FQHC-based intensive outpatient programs: Federally Qualified Health Centers charge on a sliding fee scale and provide medically intensive outpatient SUD services that may substitute for residential care for some clinical presentations. Sixth, state-funded programs: most states operate their own SUD treatment programs funded through the block grant; see your state's substance use agency website for available residential beds.

Does Original Medicare cover inpatient drug rehab?

Original Medicare (Part A) covers inpatient detoxification in a hospital when medically necessary, such as alcohol withdrawal with seizure risk or complicated opioid withdrawal. The 2026 Part A inpatient deductible is $1,736 for days 1 to 60. Original Medicare does NOT cover non-hospital residential rehab programs (standard 28-day or 90-day programs). Medicare Advantage plans are the primary way to access residential rehab coverage under Medicare.

Does Medicare cover methadone for opioid addiction?

Yes. Medicare Part B covers methadone for opioid use disorder as part of the OTP (opioid treatment program) benefit bundle, established in 2020. Methadone for addiction treatment must be dispensed at a SAMHSA-certified OTP; it cannot be prescribed and filled at a retail pharmacy. After the 2026 Part B deductible of $283, you pay 20% coinsurance on the weekly OTP bundle rate. Medigap covers that 20% if you have a supplement plan.

Does Medicare cover Suboxone (buprenorphine)?

Yes, in two ways. Injectable buprenorphine (Sublocade) dispensed at a SAMHSA-certified OTP is covered under Part B as part of the OTP bundle. Oral buprenorphine (Suboxone film, Subutex tablets) prescribed by any DEA-registered prescriber and filled at a pharmacy is covered under Part D. The 2026 Part D out-of-pocket cap of $2,100 limits annual MAT drug costs. Low-income Medicare beneficiaries who qualify for Extra Help pay substantially less.

Does Medicare Advantage cover residential rehab?

Many Medicare Advantage plans cover non-hospital residential rehab, which Original Medicare does not cover. Coverage varies by plan and county. To check, look at the plan's Evidence of Coverage under 'behavioral health' or 'substance use disorder.' Use the Plan Finder at medicare.gov/plan-compare to compare plans in your ZIP code and filter for substance use benefits. Changes can be made during the Annual Enrollment Period (October 15 to December 7, 2026).

What is the cost of addiction treatment under Medicare in 2026?

Under Original Medicare, hospital detox costs the $1,736 Part A deductible for days 1 to 60. Outpatient OTP visits cost 20% coinsurance after the $283 Part B deductible. Part D MAT prescriptions are subject to your Part D plan's cost-sharing, capped at $2,100 out-of-pocket in 2026. Without Medicare, inpatient detox typically costs $1,500 to $3,500 per day, and a 28-day residential program ranges from $6,000 to $60,000 or more.

Does Medicare cover alcohol rehab and counseling?

Yes. Medicare Part B covers outpatient alcohol use disorder counseling, including group and individual therapy, as well as an annual alcohol misuse screening at no cost to you. For medication-assisted treatment of alcohol use disorder, Part B covers injectable naltrexone (Vivitrol) at a physician's office, and Part D covers oral naltrexone, acamprosate, and disulfiram (Antabuse) filled at a pharmacy.

Can I get addiction treatment at a Federally Qualified Health Center on Medicare?

Yes. Federally Qualified Health Centers (FQHCs) are Medicare-enrolled and provide outpatient substance use disorder services billed under a special FQHC per-visit rate. FQHCs often offer integrated behavioral health, meaning SUD counseling is co-located with primary care. Many FQHCs also provide buprenorphine prescribing on-site. The HRSA Health Center Finder at findahealthcenter.hrsa.gov locates the nearest FQHC.

What is the difference between Original Medicare and Medicare Advantage for rehab coverage?

Original Medicare (Parts A and B) covers medically necessary hospital detox, outpatient OTP bundles, and oral MAT prescriptions under Part D. It does not cover residential non-hospital rehab programs. Medicare Advantage must cover all Original Medicare benefits and often adds residential rehab, extra mental health visits, peer support services, and transportation to treatment. The tradeoff is that Medicare Advantage uses provider networks and prior authorization, while Original Medicare gives broader provider access with defined cost-sharing.