Does Medicaid Cover Drug and Alcohol Rehab?

Medical Reviewer

Sendra Yang

About the Reviewer

If you have Medicaid and you are trying to get into treatment, the short answer is yes, Medicaid covers addiction treatment. What your plan will actually pay for depends on which state you live in, which plan you are enrolled in, and how the request gets submitted. This guide covers what is available everywhere, what changes at the state line, and the exact steps to get a program approved.

In This Article:

• Does Medicaid cover drug and alcohol rehab?
• What Medicaid has to cover, and what your state chooses
• Why residential rehab is covered in some states and not others
• Do you qualify, and what will treatment cost you?
• Work requirements start in January 2027
• How to get your treatment approved
• What to do if your plan denies treatment
• How to find a rehab that accepts Medicaid
• What Medicaid will not pay for, and where to go instead
• What to do once your coverage is confirmed
• Frequently asked questions

Medicaid

You are here. What your state must cover, and what it may choose to cover.

Medicare

How Parts A, B and D split addiction treatment between them.

TRICARE or VA

Military and veteran coverage, and which one to use when you have both.

Private or marketplace

Employer plans and plans bought on the Marketplace.

No insurance

The order of operations when you have no coverage at all.

Paying for someone else

Using your plan for a family member, and what you can find out.

Does Medicaid cover drug and alcohol rehab?

Yes. Every state Medicaid program covers some treatment for substance use disorder, and Medicaid covers roughly one in five adults in the United States who have one.¹ What changes from state to state is which levels of care are covered, and residential rehab is where the differences are biggest.

Outpatient counseling, medication treatment, screening, and assessment are available through Medicaid in every state. Those are the services most people actually start with, and they are also the easiest to get approved.

Residential and inpatient care are a different situation. Whether your state pays for a bed depends on a federal rule about facility size, and on which workaround your state uses. That is covered in detail below, because it is the part no other guide explains and the part that decides whether the program you found will take your coverage.

If you are looking for coverage of physical rehabilitation after a hospital stay or surgery, that is a separate Medicaid benefit and this page will not help you. Your state Medicaid office or your plan’s member services line can explain that one.

What Medicaid has to cover, and what your state chooses

Federal law sets a floor, and each state builds on top of it. Outpatient services, prescription medications, and screening and assessment are part of every state program. Residential treatment, how many days are covered, and whether you need approval before you start are state decisions.

Available in every state. Outpatient counseling, group therapy, and case management. Prescription medications, including medications for opioid use disorder (MOUD), which are buprenorphine, naltrexone, and methadone. Screening and assessment to determine what level of care you need. If you are under 21, the Early and Periodic Screening, Diagnostic and Treatment benefit requires your state to cover medically necessary services even if they are not covered for adults.

Decided by your state. Whether residential or inpatient rehab is covered and for how long. Whether intensive outpatient programs (IOP) and partial hospitalization programs (PHP) are covered, and at what intensity. Whether peer support and recovery coaching are covered. Whether you need prior authorization before treatment starts.

One detail worth knowing about medication: methadone is only available through federally certified opioid treatment programs (OTPs), not from a regular doctor’s office. Buprenorphine can be prescribed by any authorized prescriber. If you want to start medication treatment quickly, the prescriber route is usually faster. Our guide to types of addiction treatment explains what each level of care involves.

Why residential rehab is covered in some states and not others

A federal rule called the Institutions for Mental Diseases exclusion generally blocks Medicaid from paying for residential or inpatient treatment for adults ages 21 to 64 in facilities with more than 16 beds. States use four different workarounds, and 38 states plus Washington, D.C. use a federal waiver as their main route.

This is the single most useful thing to understand about Medicaid and rehab, because it explains why a friend in one state got a 30-day residential stay covered and you were told no in yours.

An Institution for Mental Diseases, or IMD, is a Medicaid category, not a type of program you would recognize by name. It covers any hospital, nursing facility, or other institution with more than 16 beds that primarily treats people with mental health or substance use disorders.¹ Since Medicaid began, federal law has generally barred payment for care delivered to adults ages 21 to 64 inside those facilities. Your state decides which facilities meet the definition.

That rule is why many residential programs cannot bill Medicaid directly. It also applies to services delivered outside an IMD while you are still a patient there.¹

There are four ways your state can pay anyway.

Source: KFF, July 2026.¹

If your state is not one of the 38, you are not automatically out of options. The managed care route exists in most states, and it is used most often for exactly this purpose. Ask your plan whether it can approve a residential stay in lieu of another service. That is the specific phrase to use, because it is the phrase in the federal rule.

On length of stay, be careful with any source that gives you a firm number. Federal guidance in 2017 replaced hard caps with a statewide average of 30 days as a monitoring target, which means longer stays for some people can be offset by shorter ones for others.¹ Actual averages vary enormously. Among states that reported them, Indiana averaged 4.7 days and California averaged 31.2 days.¹ Ask your plan what it will authorize for you rather than assuming a standard benefit.

Do you qualify, and what will treatment cost you?

Medicaid eligibility is based mostly on household income. In states that expanded Medicaid, adults with income up to 138 percent of the federal poverty level generally qualify. Most people with Medicaid pay nothing for addiction treatment, and where copays exist they are small and capped.

A large number of people who qualify for Medicaid do not know they do, and cost is the reason many of them never call a program in the first place. If you have been quoted a private-pay figure for rehab and walked away, checking your eligibility is worth twenty minutes.

Three things decide eligibility. Income, measured for most adults using Modified Adjusted Gross Income. Residency, since you have to apply in the state where you live. And immigration status, with coverage generally limited to citizens and certain qualified non-citizens. Adults over 65 and people qualifying through disability are assessed differently. If you also have Medicare, our guide to Medicare rehab coverage limits explains what it pays and for how long.

Two timing rules are worth asking about directly when you apply, because they can pay for care you have already received or let you start sooner. Retroactive coverage can pay bills incurred before your application was approved, and presumptive eligibility lets certain hospitals and clinics enroll you on the spot so treatment can begin while your full application is processed. Both vary by state and both have been affected by recent federal changes, so ask your state Medicaid agency what applies now rather than relying on a figure you read anywhere, including here.

On cost, the practical answer is that Medicaid is the least expensive way to get treatment in the United States. Most enrollees have no copay for addiction treatment. Some states charge a nominal copay with a federal cap on how high it can go. There is no deductible to meet first and no out-of-pocket maximum to spend down, which is the difference between Medicaid and a marketplace plan. For how that compares against every other way of paying, see what addiction treatment costs.

Work requirements start in January 2027

Starting 1 January 2027, most adults covered through Medicaid expansion will have to report 80 hours a month of work or a similar activity to keep coverage. Having a substance use disorder can exempt you, but under the current federal rule the exemption is not automatic. States are required to notify enrollees about the change before the end of August 2026.

If you are covered through Medicaid expansion, a letter about this is either already in your mailbox or on its way. Do not throw it out.

What the requirement is. The 2025 reconciliation law conditions Medicaid eligibility for adults in the expansion group on completing at least 80 hours a month of qualifying activity, or earning at least $580 a month, which is 80 hours at the federal minimum wage.^3,4 Paid work counts. So do job training, education, and volunteering, and states can count a mix.⁴

Who it applies to. Non-pregnant adults ages 19 to 64 who are not enrolled in Medicare and who get coverage through the Medicaid adult expansion group or certain waiver programs. CMS counts 43 states and Washington, D.C.³ That includes Georgia, Tennessee, and Wisconsin, which did not expand Medicaid but cover some expansion adults through a waiver.⁵

Some states started early. Nebraska began enforcing in May 2026 and Montana in July 2026. Arkansas began a soft rollout in July 2026 but will not disenroll anyone before January. Iowa starts in December 2026. Georgia’s existing program expires at the end of December 2026, when the federal rules take over.²

The exemption, and why it is not automatic. The law exempts people who are “medically frail,” and that category explicitly includes people with a substance use disorder, unless they have been in stable recovery for five or more years.⁶ CMS’s interim final rule, issued 1 June 2026, added a condition Congress did not write into the statute: the condition also has to significantly impair your ability to meet the requirement.^6,7 The rule does not give states a list of qualifying diagnoses, and it bars states from exempting people by diagnosis alone.⁸

In plain terms, having a diagnosis on your record may not be enough by itself. You may need documentation that your condition limits your ability to work 80 hours a month.

Being in treatment can help you either way. Some states, including Louisiana, list participation in a qualifying substance use disorder treatment program as an exemption or a qualifying activity.⁴ So treatment can satisfy the requirement rather than conflict with it. Ask your state Medicaid agency which of the two applies where you live.

What to do now. Watch for the notice and read it. Tell whoever is treating you that you may need documentation for a medically frail determination. States are required to check your claims and encounter data from the previous 12 months before asking you for anything, so if you have been in treatment, that record may do the work for you.⁶ For 2027 you can attest that you meet an exemption, with documentation required starting in 2028.⁹

One privacy note. Any data sharing used to verify an addiction-related exemption has to comply with 42 CFR Part 2, the federal rule that gives substance use treatment records stronger protection than HIPAA.⁸ Our guide to treatment privacy and job protection explains what that rule protects.

How to get your treatment approved

Most people with Medicaid are enrolled in a managed care plan, and that plan, not the state, usually decides whether a specific program is approved. Residential and inpatient care almost always require prior authorization. An assessment using the American Society of Addiction Medicine criteria is normally what justifies the level of care you are asking for.

A lot of denials come down to how the request was submitted rather than whether the service is covered at all. These steps are in the order that works.

1. Find out which plan you have. Look at your card. If it names an insurance company rather than only your state, you are in managed care and that company is who you deal with. If it names only the state, you are in fee-for-service and the state agency decides.
2. Get an assessment. A licensed provider assesses you against the American Society of Addiction Medicine (ASAM) criteria, the standard framework for matching a person to a level of care. This assessment is what the plan reviews.
3. Pick a program that takes your specific plan. Not just “Medicaid.” Plans within the same state have different networks.
4. Have the program request prior authorization. Programs that regularly bill Medicaid know how to do this and will usually handle it for you. Ask them to confirm when it has been submitted.
5. Get the decision in writing. You need the written notice if you have to appeal, and it starts the clock on your deadlines.
6. If there is a wait, ask what can start now. Medication treatment and outpatient care can often begin while you wait for a residential bed.

One honest warning. Even inside a single state, plans interpret medical necessity differently. Indiana introduced a universal prior authorization form and providers still reported variation between plans in documentation requirements and review processes.¹ If you get a different answer from two sources, the answer that matters is the one from your plan.

For what to expect at intake and how long the wait usually is, see getting into treatment.

What to do if your plan denies treatment

You have 60 calendar days from the denial notice to file an appeal with your managed care plan. The plan then has 30 days to decide, or 72 hours if you request an expedited review. If services you are already receiving are being cut off, you have only 10 days to request that they continue during the appeal.

A denial is not the end of the process, and the deadlines are shorter than most people expect. Federal rules guarantee this process in every state.

Step one is the plan’s internal appeal. You have 60 calendar days from the date on the denial notice to file it.¹¹ Managed care plans have only one level of internal appeal and you generally have to finish it before going to the state.¹² The plan must resolve a standard appeal within 30 calendar days, or within 72 hours if you ask for expedited review because waiting could seriously jeopardize your health. Either timeline can be extended by up to 14 days.¹²

Ask for expedited review if you are in withdrawal, at risk of returning to use, or waiting on a bed that will not be held. That is what the 72-hour track exists for.

Step two is a state fair hearing. If the plan upholds its denial, states must give you between 90 and 120 calendar days from the plan’s resolution notice to request a hearing.¹² Your exact window is set by your state.

The 10-day rule is the one people miss. Those two deadlines govern whether you can appeal. A separate and much shorter one governs whether your services keep running while you do. To keep previously authorized services in place, you have to request continuation within 10 calendar days of the plan’s adverse resolution notice.¹³ Miss that and your appeal continues but your treatment stops.

Two more rights worth knowing. If your plan fails to follow the notice and timing rules, your appeal is treated as exhausted and you can go straight to a fair hearing.¹² And if you win but the services were never provided during the appeal, the plan has to authorize them within 72 hours of receiving the decision.¹⁴

Your state has a Medicaid ombudsman or beneficiary assistance office, and legal aid organizations handle Medicaid denials at no cost. You do not have to do this alone. If you also have private coverage and need to appeal there, appealing a denial from a private or marketplace plan covers a different process.

How to find a rehab that accepts Medicaid

Not every treatment program accepts Medicaid, and the programs that advertise hardest are often the ones that do not. Start with your plan’s provider directory and a filtered search, then confirm directly with the program before you commit to anything.

Four places to look, in the order that saves time:

• Our directory. Browse by state and city to see programs near you.
• Your plan’s provider directory. This is the authoritative list for your specific plan, which matters more than a general Medicaid list.
• SAMHSA’s treatment locator at findtreatment.gov. A federal database you can filter by payment type.
• Your state Medicaid agency or single state agency for substance use services. They can tell you which programs are contracted and where there is capacity.

When you call a program, ask these five things. Do you accept my specific plan, naming the insurer on your card. Do you need prior authorization and will you submit it. How long is the current wait. Do you offer medication for opioid use disorder on site. And what will I owe out of pocket, if anything.

Capacity is a genuine constraint and it is fair to know that going in. During Indiana’s demonstration the share of addiction treatment facilities accepting Medicaid rose from 60 percent to 78 percent, and workforce shortages still limited access.¹ If the first three programs cannot take you, that is a supply problem, not a judgment about you. Get on more than one waiting list.

What Medicaid is called in your state

Medicaid goes by a different name in many states, and that is a common reason people assume a page like this does not apply to them. If your card says Medi-Cal in California, MassHealth in Massachusetts, TennCare in Tennessee, Apple Health in Washington, AHCCCS in Arizona, NJ FamilyCare in New Jersey, BadgerCare Plus in Wisconsin, SoonerCare in Oklahoma, Health First Colorado, MO HealthNet in Missouri, the Oregon Health Plan, KanCare in Kansas, MaineCare, Med-QUEST in Hawaii, Healthy Louisiana, HUSKY Health in Connecticut, Heritage Health in Nebraska, Healthy Connections in South Carolina, Cardinal Care in Virginia, or Turquoise Care in New Mexico, you have Medicaid and everything on this page applies to you.

Those are examples rather than a complete list, and states do rename their programs. Your state Medicaid agency’s own website is the place to confirm what yours is called now. Select your state below for local coverage details and programs that accept it.

What Medicaid will not pay for, and where to go instead

Medicaid generally does not pay for sober living or recovery housing, private-pay and luxury programs, or care outside your plan’s network. Each of those gaps has a route around it, and none of those routes should involve a medical credit card.

Sober living and recovery housing. These are housing, not clinical treatment, so Medicaid usually does not cover them even when the program is closely tied to a treatment provider. This is a real gap. Waiver evaluations in California, Indiana, and Utah all found that people leaving residential treatment often had no appropriate step-down housing to go to, and clinicians described unstable housing as one of the hardest problems to solve after discharge.¹ Some states are testing housing supports through waivers, so it is worth asking your plan. Our guide to sober living covers how it works and what it costs.

Out-of-network and out-of-state programs. Medicaid is state-based. Getting a program in another state covered is difficult and usually requires your plan to agree in advance. If someone is telling you to travel for treatment and promising your Medicaid will cover it, verify that with your plan before you get on a plane.

Private and luxury programs. Many do not accept Medicaid at all. That is a business decision on their part and it says nothing about the quality of care you can get elsewhere. Publicly funded and nonprofit programs deliver the same evidence-based treatments.

If Medicaid covers part of your care and you still owe something, there are better options than credit. Facility scholarships, grants, sliding-scale negotiation, and payment plans all exist, and employer assistance programs are confidential and badly underused. Our guide to closing the gap between coverage and cost walks them in order.

And if it turns out you are not eligible for Medicaid at all, there is a separate path built around federally qualified health centers, state-funded programs, and nonprofits, none of which can turn you away for inability to pay. Start with getting treatment with no insurance.

What to do once your coverage is confirmed

Once you know Medicaid will cover you, the next question is what to ask for. Level of care is the decision that shapes everything else: how long treatment lasts, whether you keep working, and how much support you get in the first month. Outpatient and medication treatment are the easiest to access and the fastest to start. Residential is harder to get and worth pursuing if your assessment supports it. Our guide to choosing a level of care explains the options.

If Medicaid covers most of your treatment but not all of it, or if you are facing a gap during a waiting period, covering what is left is the next chapter. And if you are reading this for someone else, helping someone else get treatment is written specifically for that.

Frequently asked questions

Does Medicaid cover detox?

Medically supervised withdrawal management is covered by Medicaid in most states, and it is one of the services CMS expects states to make available across the treatment continuum under a Section 1115 substance use disorder waiver. Whether a specific detox facility can bill Medicaid depends on the facility’s size and licensing, because facilities with more than 16 beds may fall under the Institutions for Mental Diseases exclusion. Hospital-based detox is more consistently covered than freestanding residential detox.

How long will Medicaid pay for rehab?

There is no single federal limit. Since 2017, federal guidance has used a statewide average of 30 days as a monitoring target for residential treatment rather than a hard cap per person, which means individual stays can run longer or shorter. Reported state averages have ranged from under five days to slightly over 30. The length authorized for any one person depends on the assessment and on the managed care plan’s review.

Does Medicaid cover Suboxone and methadone?

All state Medicaid programs cover medications for opioid use disorder, including buprenorphine, which is the active ingredient in Suboxone, as well as naltrexone and methadone. Methadone is only available through federally certified opioid treatment programs rather than a general medical office. Buprenorphine can be prescribed by any authorized prescriber, which often makes it the faster route to starting treatment.

Does Medicaid pay for sober living?

Generally no. Sober living and recovery residences are considered housing rather than clinical treatment, so Medicaid does not typically cover the cost of staying in one. Some states are testing housing-related supports through Section 1115 waivers, and some recovery residences operate on sliding-scale or donation models, so it is worth asking both the plan and the residence directly.

Does Medicaid cover rehabilitation after a hospital stay or surgery?

Post-acute rehabilitation, such as physical therapy after surgery or a skilled nursing stay after a hospital admission, is a different Medicaid benefit from addiction treatment and is governed by different rules. Anyone looking for that information should contact their state Medicaid office or their plan’s member services line rather than relying on addiction treatment guidance.

Can someone use Medicaid for rehab in another state?

Rarely, and not without advance approval. Medicaid is administered state by state, and coverage is generally limited to providers enrolled in the person’s own state program. Out-of-state care usually requires the plan or state agency to authorize it in advance, most often when the necessary level of care is not available in state.

You Might Like

• How Much Does Rehab Cost?
• Types of Addiction Treatment and Levels of Care
• How to Cover What Insurance Doesn’t Pay for Rehab
• How to Get Into Rehab: Wait Times and What Can Start Today

References

1. Saunders H. A Look at 1115 Waiver Evaluations for Medicaid Payments to Institutions of Mental Disease (IMD) for Substance Use Disorder. KFF. Published July 9, 2026. Accessed August 4, 2026.
2. KFF. Medicaid Waiver Tracker: Approved and Pending Section 1115 Waivers by State. Updated July 14, 2026. Accessed August 4, 2026.
3. Centers for Medicare and Medicaid Services. Medicaid Community Engagement Requirement for Certain Individuals Interim Final Rule with Comment Period (CMS-2454-IFC). Fact sheet. Published June 1, 2026. Accessed August 4, 2026.
4. Louisiana Department of Health. Medicaid Work Requirements. Accessed August 4, 2026.
5. KFF. The Medical Frailty Exemption from Medicaid Work Requirements: Key Takeaways from the CMS Interim Final Rule. Published July 2026. Accessed August 4, 2026.
6. Medicaid Program; Community Engagement Requirement for Certain Individuals. 91 Fed Reg. Published June 3, 2026. Accessed August 4, 2026.
7. Centers for Medicare and Medicaid Services. Interim final rule with comment period, community engagement requirement. Published June 1, 2026. Accessed August 4, 2026.
8. KFF. CMS Requires More Restrictive Definition of Medical Frailty in New Medicaid Work Requirements Rule. Published June 2026. Accessed August 4, 2026.
9. Applied Policy. CMS Issues Interim Final Rule on Medicaid Community Engagement Requirements. Published June 2026. Accessed August 4, 2026.
10. KFF. States Sue CMS Over Medicaid Work Requirements Rule, Citing Departure from Earlier Guidance on Medical Frailty. Published June 30, 2026. Accessed August 4, 2026.
11. 42 CFR §438.402. General requirements: grievance and appeal system. Accessed August 4, 2026.
12. 42 CFR §438.408. Resolution and notification: grievances and appeals. Accessed August 4, 2026.
13. 42 CFR §438.420. Continuation of benefits while the MCO, PIHP, or PAHP appeal and the state fair hearing are pending. Accessed August 4, 2026.
14. 42 CFR §438.424. Effectuation of reversed appeal resolutions. Accessed August 4, 2026.

Medical Reviewer

Sendra Yang

About the Reviewer