Does Medicare Cover Rehab for Alcohol or Drugs?

Yes, Medicare covers rehab for alcohol and drug use, but it pays for the medical treatment rather than the place you stay. Part A covers detox and inpatient treatment in a hospital when you need that level of care. Part B covers partial hospitalization, intensive outpatient programs and regular outpatient treatment. What Original Medicare generally doesn't pay for is room and board at a residential rehab that isn't a hospital.

One thing to clear up first. Many people who search for "Medicare rehab coverage" are looking for physical rehabilitation after a fall, a stroke or a joint replacement. This guide is about rehab for drinking and drug use. Medicare.gov has separate pages on physical therapy and skilled nursing care if that's what you need.

"Rehab" can mean several different things

When families say a parent "needs rehab," they could mean anything from a few days in the hospital to a weekly counseling group. Medicare treats each one differently, so it helps to name them. Here they are, from most intensive to least:

• Hospital detox, a short inpatient stay to get through withdrawal safely.

• Inpatient rehab in a hospital, either a general hospital or a psychiatric hospital.

• Residential programs, where you live at a treatment center that isn't a hospital, often for several weeks.

• Partial hospitalization (PHP), a structured day program of at least 20 hours a week. You go home at night.

• Intensive outpatient programs (IOP), at least 9 hours a week of structured treatment while you live at home.

• Outpatient treatment, such as therapy, counseling and medication visits, often once a week or less.

Medicare covers most of these. The residential level is where the big gap is.

Detox in the hospital

Medicare's national coverage rule for alcohol and drug treatment says Part A covers detox in a hospital when complications of withdrawal make a hospital setting necessary. A typical stay is two to three days, and occasionally up to five (CMS). If you're admitted for withdrawal and also have opioid use disorder, Part A covers methadone, buprenorphine or naltrexone during the hospital stay (Medicare.gov, PDF).

Withdrawal is a real medical risk for some people, especially older adults. If you or your parent drinks heavily every day or takes a benzodiazepine (such as Xanax, Ativan or Valium), stopping suddenly can be dangerous. Talk to a doctor before cutting back, and let the doctor decide whether detox should happen in a hospital or with outpatient monitoring.

Inpatient rehab in a hospital

After detox, some people need more time in a hospital. The same national coverage rule says Part A covers inpatient rehab when less intensive treatment has already been tried and hasn't worked, or when other medical conditions mean the person needs to be in a hospital to be treated safely (CMS). For an older adult with heart disease, diabetes or memory problems, that second reason comes up often.

Where the stay happens matters. Part A covers inpatient mental health care, including substance use treatment, in either a general hospital or a psychiatric hospital. In a psychiatric hospital, Part A pays for up to 190 days over your lifetime. That limit doesn't apply to psychiatric care in a general hospital (Medicare.gov). Most people never come close to 190 days, but if your parent has had long psychiatric stays in the past, it's worth asking about.

Residential rehab programs

This is the kind of rehab most people picture: a treatment center where you live for 28 days, 60 days or longer, with group therapy, individual counseling and structured days. Many of these programs are not hospitals, and that's where Medicare coverage gets thin.

Original Medicare generally doesn't pay for room and board at residential programs or for sober living homes. Medicare also excludes custodial care, meaning help with everyday living rather than medical treatment. Medicare's mental health booklet lists meals, transportation, support groups and private rooms among the things it doesn't cover (Medicare.gov, PDF).

If a residential program says it "takes Medicare," ask exactly what it bills to Medicare and what you'd pay yourself. Get the answer for both the clinical services and the daily room-and-board charge, since those are often treated very differently.

Partial hospitalization programs

A partial hospitalization program gives you hospital-level structure during the day while you sleep at home. Part B covers PHP through a hospital outpatient department or a community mental health center. The program must provide at least 20 hours of services a week, and your provider has to certify that you would otherwise need inpatient care. Certification is reviewed every 30 days (Medicare.gov).

Medicare lists partial hospitalization under mental health care. Because substance use and conditions like depression or anxiety so often show up together, many PHPs treat both. When you call, ask whether the program treats substance use and whether its PHP accepts Medicare. You pay a share of the cost for each service and, after the Part B deductible, a coinsurance for each day of the program (Medicare.gov).

Intensive outpatient programs

Since January 1, 2024, Part B has covered intensive outpatient programs for mental health conditions and substance use disorders. IOP is a step down from PHP: your plan of care calls for at least 9 hours of services a week, and you don't need to meet the bar for inpatient care to get it (Medicare.gov). IOP is often where people go after a hospital stay, or instead of one when a doctor thinks outpatient care is enough. We cover it in depth in Does Medicare cover intensive outpatient programs?

Outpatient treatment

Regular outpatient care is the level most people stay in the longest. Part B covers individual and group psychotherapy, family counseling when it helps your treatment, and psychiatric evaluation (Medicare.gov). Our guide to Medicare coverage for counseling and therapy explains who can provide it and how telehealth works.

For opioid use disorder, Part B also covers opioid treatment programs, which provide medication along with counseling, therapy and testing (Medicare.gov). See Does Medicare cover Suboxone and methadone? for details.

What rehab costs with Medicare in 2026

Costs depend on the level of care and on your coverage. Here are the standard 2026 figures for Original Medicare (CMS):

• For hospital detox or inpatient rehab under Part A, you pay a $1,736 deductible for each benefit period. If a stay runs past 60 days, you pay $434 a day for days 61 through 90 and $868 a day for any lifetime reserve days you use after that.

• For PHP, IOP and outpatient care under Part B, there's a $283 yearly deductible, and after that you generally pay 20% of the amount Medicare approves for each service (Medicare.gov). Hospital outpatient departments and community mental health centers may also charge a per-day coinsurance.

• On top of that, the Part B premium is $202.90 a month for most people.

A Medigap policy can cover some or all of these. Plans A, B, C, D, F, G and M pay all of the Part B coinsurance, while Plan K pays half and Plan L pays 75% (Medicare.gov). If you have a Medicare Advantage plan instead, your costs follow the plan's own rules, and the plan may require in-network providers, referrals or prior approval (Medicare.gov). For worked examples, see Medicare costs for recovery care.

How to find the right level of care

Let a medical assessment decide the level of care. Whichever program happens to have an opening is a poor way to choose. A primary care doctor, psychiatrist or addiction specialist can look at how much someone is drinking or using, their withdrawal risk, their other health conditions and what has or hasn't worked before.

When you call programs, these questions save time:

• Do you accept Original Medicare, and do your providers accept assignment?

• If I have a Medicare Advantage plan, are you in network, and do I need a referral or prior approval?

• Which parts of your program do you bill to Medicare, and which do you bill to me?

• Do you treat older adults, and how do you handle other medical conditions and medications?

• What happens when the program ends? Who helps with the next step?

Planning for after rehab

The weeks right after discharge are when many people feel most exposed. The schedule and the support of the program fall away all at once. Medicare continues to cover outpatient therapy, medication and, since 2024, recovery support through Principal Illness Navigation, Peer Support (PIN-PS) for people who meet the requirements (CMS, PDF). Our guides on how to stay sober after rehab and relapse prevention for seniors cover what tends to help, and Does Medicare cover a recovery coach? explains the PIN-PS benefit. For the full picture of what Medicare pays for, start with what Medicare covers in addiction recovery.

Common questions

Does Medicare cover a 30-day rehab program?
It depends on where the program happens. If the 30 days are spent in a hospital because your doctor says you need hospital care, Part A applies. If the program is a residential center that isn't a hospital, Original Medicare generally doesn't pay for the room and board, and you should ask the program what, if anything, it bills to Medicare.

Does Medicare cover alcohol detox?
Part A covers detox in a hospital when complications make a hospital setting necessary, usually for two to three days and occasionally up to five. Never stop heavy daily drinking suddenly without talking to a doctor first.

Does Medicare cover rehab centers?
Medicare covers care at many kinds of treatment centers, including hospital programs, partial hospitalization programs, intensive outpatient programs and opioid treatment programs. Coverage follows the type of service, so ask each center which Medicare-covered services it provides.

Is there a limit on how long Medicare pays for inpatient care?
In a psychiatric hospital, Part A covers up to 190 days over your lifetime. That limit doesn't apply to psychiatric care in a general hospital. Costs per day also go up after day 60 of a benefit period.

Does Medicare Advantage cover rehab?
Medicare Advantage plans must cover all medically necessary services Original Medicare covers, including hospital detox, PHP and IOP. They may require in-network providers, referrals or prior approval, and costs vary by plan.

Where Accountable fits

Accountable offers recovery coaching through Medicare in Florida, New Jersey, New York, North Carolina, Tennessee and Texas. A certified recovery coach works with you by video or phone, with a licensed clinician from one of our Insurance Offering Partners (the medical groups that provide clinical services through Accountable) evaluating and overseeing your care. Medicare may cover these sessions as peer navigation under its PIN-PS benefit when the clinician finds a qualified clinical need at an initiating visit.

It is session-based and separate from Accountable's monthly subscription. The usual Part B deductible and coinsurance apply, and what you pay depends on your plan (Original Medicare or Medicare Advantage) and any secondary coverage such as a Medigap plan. Your plan makes the final call on coverage. You can start the process for a parent or spouse, and they go through the same clinician visit. Learn more at Recovery coaching through Medicare or call (646) 450-7641.

Sources

• Centers for Medicare & Medicaid Services. National Coverage Determination 130.1, inpatient hospital stays for alcohol and drug treatment.

• Medicare.gov. Medicare Coverage of Opioid Use Disorder Treatment Services (publication 12085), PDF.

• Medicare.gov. Mental health care (inpatient).

• Medicare.gov. Medicare & Your Mental Health Benefits (publication 10184), PDF.

• Medicare.gov. Mental health care (partial hospitalization).

• Medicare.gov. Mental health care (intensive outpatient program services).

• Medicare.gov. Mental health care (outpatient).

• Medicare.gov. Opioid use disorder treatment services.

• Centers for Medicare & Medicaid Services. 2026 Medicare Parts A & B Premiums and Deductibles.

• Medicare.gov. Compare Medigap plan benefits.

• Medicare.gov. Compare Original Medicare and Medicare Advantage.

• Centers for Medicare & Medicaid Services. Health-Related Social Needs FAQ, PDF.

This guide explains Medicare rules in general terms and is not legal, medical or billing advice. Coverage depends on your plan and your situation. Last reviewed October 2026.