The short answer
Medicare uses the word rehab for two unrelated benefits. Inpatient rehabilitation care is for recovering from a serious surgery, illness or injury. Addiction treatment is separate, and Medicare covers Opioid Use Disorder treatment under Part A, Part B and Part D, for as long as it is reasonable and necessary.
You type one word into a search box. Medicare has more than one answer behind it, and they share nothing but the spelling. One is about recovering from surgery. The other is about addiction, and this page is about that one.
Does Medicare cover rehab?
Yes for addiction treatment, and three parts of Medicare do it at once. Medicare covers medications for Opioid Use Disorder, and it covers treatment services when you get them from a doctor or through an Opioid Treatment Program, including mobile units.
Look at the badges on Medicare's own page, because they are unusual. Covered by Part A. Covered by Part B. Covered by Part D. Most benefits sit under one part, and this one is written across three.
There is no clock on it either. Medicare states that people with Medicare who have been diagnosed with Opioid Use Disorder can get treatment services for as long as it is reasonable and necessary.
The other benefit that answers to the word rehab is a different thing entirely. Inpatient rehabilitation care is for recovering from a serious surgery, illness or injury, and it appears again further down this page with its own section.
What addiction treatment is covered?
Addiction treatment under Medicare is medications and services, and Medicare separates the two. It covers medications to help stop or reduce opioid use, including methadone, buprenorphine and naltrexone, and medications to rapidly reverse the effects of an opioid overdose, including nalmefene and naloxone.
Alongside the medications sits the care. Medicare covers counseling, therapy and periodic assessments, both in person and, in certain circumstances, by virtual delivery. It adds that it may also cover periodic assessments that use audio-only communication.
Then it publishes what each of two routes actually delivers, and the lists are different lengths.
From a doctor or other health care provider you get overall care management with your care team including coordination of care, individual and group therapy, substance use and other additional counseling, and in some cases medications like buprenorphine and naltrexone.
An Opioid Treatment Program delivers considerably more. Medications for Opioid Use Disorder. Medications to reverse an overdose, and overdose education. Preparation and help taking medications that are part of your recovery process. Drug testing. Substance use counseling.
The same list continues with individual and group therapy, intake activities and other periodic assessments, coordinated care or referral services, peer recovery support services, and intensive outpatient services.
Alcohol sits slightly apart. Medicare's preventive counseling for alcohol misuse is written for adults who use alcohol but do not meet the medical conditions for alcohol dependency, so it is a different benefit from treatment and this page does not describe it further.
Is inpatient rehab covered?
Yes, and it is not this article's benefit. Medicare's inpatient rehabilitation care covers people recovering from a serious surgery, illness or injury who need an intensive rehabilitation therapy program, physician supervision and coordinated care from their doctors and other providers.
Now read the aliases Medicare prints for it, because this is where one word stops naming one thing. Part A covers medically necessary care you get in an inpatient rehabilitation facility or unit, sometimes called an inpatient "rehab" facility, an IRF, an acute care rehabilitation center, or a rehabilitation hospital.
So Medicare itself names that benefit "rehab", on a page that has nothing to do with addiction. Call it One Word, More Than One Benefit. These two share no gate, no delivery route and no cost rule.
The gates alone show how far apart they are. For inpatient rehabilitation, your health care provider must certify that you have a medical condition requiring intensive rehabilitation, continued medical supervision and coordinated care. Addiction treatment carries no such certification on its own page.
Both pages are the government's. Naming that the word does not resolve to a benefit, and saying which page answers which question, is ours.
One rule on that benefit is worth carrying, and it is a rule rather than a price. You do not pay a deductible for inpatient rehabilitation care if Medicare already charged you one for care in the same benefit period. Medicare gives two examples: a transfer directly from an acute care hospital, and an admission within 60 days of being discharged from a hospital.
Whether such a stay counts as hospital care, and what a hospital stay costs, are separate questions with their own page in this section.
What about medication-assisted treatment?
Medicare covers it, and which part pays depends on where you get it. Part A covers methadone, buprenorphine and naltrexone when you get them as an inpatient at the hospital. Part B covers the same three in a doctor's office or through an Opioid Treatment Program.
Part B goes slightly further on overdose. It also covers nalmefene and naloxone to rapidly reverse the effects of an opioid overdose.
The Part D line reads differently from the other two, in two ways, and both are worth noticing. Medicare drug coverage may cover buprenorphine and naltrexone, and drugs to rapidly reverse an overdose like nalmefene and naloxone.
The first difference is the verb. Part A and Part B "cover"; Part D "may cover".
The second is the list itself. Methadone appears on the Part A list and on the Part B list, and it does not appear on the Part D list. That is what the page states. It does not state that Part D excludes methadone, and it gives no reason for the difference, so neither does this page.
Medicare's own instruction for that part is one line. Contact your plan for more information.
One starting rule is published and it involves no visit. You may be able to start buprenorphine treatment without an in-person exam if your health care provider can adequately evaluate you using audio and video, or audio-only communication. However, you may need an in-person exam if you need other medications.
What do I pay for addiction treatment?
Where you go decides whether a copayment exists at all. From an Opioid Treatment Program enrolled in Medicare that meets other requirements, you will not have to pay any copayments. From a doctor or other health care provider, you will pay copayments and the Part B deductible.
| The route | What Medicare's page says | The trap |
|---|---|---|
| An enrolled Opioid Treatment Program | No copayments, deductible still applies | Reading no copayment as no cost |
| A doctor or other provider | Copayments and the deductible both apply | Assuming both routes price the same |
| Medicare and Medicaid together | Nothing for services through state Medicaid | Assuming this reaches everyone |
The deductible is the part that survives both routes. Medicare states that it applies to Opioid Treatment Program services including any supplies and medications you might get as part of your treatment, and it applies on the doctor route as well.
So the difference between the two routes is the copayment, and it is not a small distinction dressed up. On one route Medicare says you will not have to pay any.
One more route pays nothing at all. If you have both Medicare and Medicaid, you pay nothing for the services that you get through your state Medicaid program.
Neither of this page's sources publishes what any copayment amounts to, so no figure appears here.
How do I find a program?
Medicare's answer to this is one sentence, and it is thinner than the question deserves. Its provider requirement for addiction treatment reads, in full: the program must be enrolled in Medicare. There is no directory, no search step and no checklist on the page.
That thinness is worth naming rather than filling. This page will not invent a process Medicare does not publish.
What the sources do give you is a way to tell the two routes apart, and that matters because the routes price differently. One is a doctor or other health care provider. The other is an Opioid Treatment Program, which Medicare says can include mobile units.
What Medicare does publish is the content of the second route. Its list for an Opioid Treatment Program includes drug testing, substance use counseling, peer recovery support services and intensive outpatient services.
What this means for you
Medicare answers to the word rehab in more than one place. One benefit is recovery from a serious surgery, illness or injury, and Medicare calls that one a rehab facility on its own page. The other is addiction treatment, and it is the one this page answers.
Addiction treatment is unusual in being written across Part A, Part B and Part D at once, and unusual again in having no time limit stated: Medicare says as long as it is reasonable and necessary.
If one thing here is worth carrying, it is that the route changes the bill. An Opioid Treatment Program enrolled in Medicare carries no copayments, and a doctor's office carries copayments and the deductible, for treatment that Medicare describes in largely the same terms.
FAQ
Is inpatient rehab the same as addiction rehab under Medicare?
No, and Medicare's own pages make the gap wider than the shared word suggests. Its inpatient rehabilitation care benefit is for people recovering from a serious surgery, illness or injury who need an intensive rehabilitation therapy program, physician supervision and coordinated care from their doctors and other health care providers.
That page lists the benefit's other names, including an inpatient "rehab" facility, an IRF, an acute care rehabilitation center and a rehabilitation hospital. Addiction treatment is published separately, as Opioid Use Disorder treatment services, and that page is titled for the disorder rather than for the word rehab.
The two carry different eligibility gates and different cost rules. So the word a reader types does not settle which benefit they are asking about, and the pages have to be read separately.
Which part of Medicare pays for methadone?
Medicare names methadone under two parts and not a third, and the wording differs between them. Part A covers methadone, buprenorphine and naltrexone when you get them as an inpatient at the hospital. Part B covers the same three when you get them in a doctor's office or through an Opioid Treatment Program.
The Part D line reads differently: Medicare drug coverage may cover buprenorphine and naltrexone, and drugs to rapidly reverse an overdose like nalmefene and naloxone. Methadone is not named on that Part D line, and the verb is "may cover" rather than "covers".
That is what the page states. It does not state that Part D excludes methadone, and Medicare gives no reason for the difference, so this page supplies none. Medicare's instruction is to contact your plan.
Why would two people pay different amounts for the same treatment?
Because Medicare prices the route rather than the treatment. If you get these services from an Opioid Treatment Program that is enrolled in Medicare and meets other requirements, you will not have to pay any copayments, though the Part B deductible still applies, including for supplies and medications you get as part of your treatment.
If you get the same kind of services from a doctor or other health care provider, you will pay copayments and the Part B deductible.
A third situation pays nothing: if you have both Medicare and Medicaid, you pay nothing for services you get through your state Medicaid program. Medicare does not publish the copayment amounts on this page, so the size of the difference is not something this page can state.
Can I start treatment without going in?
For one medication, Medicare says you may be able to. It states that you may be able to start buprenorphine treatment without an in-person exam if your health care provider can adequately evaluate you using audio and video, or audio-only communication.
Two limits sit around that. The first is in Medicare's own next sentence: you may need to do an in-person exam if you need other medications. So the allowance is written for buprenorphine and not extended to the rest.
The second is the wording itself, which says you may be able to rather than you can, and which turns on whether the provider can adequately evaluate you that way. Medicare also covers counseling, therapy and periodic assessments by virtual delivery in certain circumstances, and may cover periodic assessments using audio-only communication.
What does an Opioid Treatment Program actually provide?
Medicare publishes the list, and it is longer than the medications people expect. It covers medications for Opioid Use Disorder like methadone, buprenorphine and naltrexone, and medications to reverse the effects of an opioid overdose like naloxone and nalmefene, together with overdose education.
It covers preparation and help taking the medications that are part of your recovery process, drug testing, and substance use counseling. It covers individual and group therapy, intake activities and other periodic assessments, coordinated care or referral services, peer recovery support services, and intensive outpatient services.
Medicare adds that these programs can include mobile opioid treatment units. Its only stated requirement for the program itself is that it must be enrolled in Medicare.
