Does Medicare cover rehab after detox?

Yes. Medicare covers inpatient and outpatient mental health and substance use treatment, including counseling, intensive outpatient services, and medication for opioid use disorder. Coverage rules and cost-sharing differ between Original Medicare and Medicare Advantage plans.

Does Medicare cover methadone or Suboxone?

Medicare covers opioid use disorder treatment services, including medication provided through opioid treatment programs, and Part D plans cover buprenorphine products. Which specific medications are covered and at what cost depends on your Part D or Advantage plan's formulary.

Do you have to be 65 to have Medicare?

No. People under 65 qualify through Social Security Disability Insurance after a waiting period, and some qualify through end-stage renal disease or ALS. A meaningful share of Medicare beneficiaries seeking substance use treatment are under 65.

What if you have both Medicare and Medicaid?

If you're dually eligible, Medicare generally pays first and NJ FamilyCare may cover remaining costs, which can substantially reduce or eliminate out-of-pocket expense. Tell the program you have both — it changes how they bill and what you owe.

Insurance & cost

Does Medicare Cover Detox?

Yes — and the useful part isn't whether, it's which part of Medicare pays for which setting, because that determines what you'll actually owe. Ocean County has one of New Jersey's largest Medicare populations, and this question comes up here more than most places.

By the TomsRiverDetox.com editorial team · Published August 16, 2026

Which part pays for what

Medicare is four programs wearing one name, and detox can touch three of them.

Part A covers inpatient hospital care. If someone is admitted to a hospital and withdrawal is managed during that admission, this is the part that pays. It also covers inpatient care in a psychiatric hospital, subject to a lifetime limit that applies specifically to freestanding psychiatric hospitals.

Part B covers outpatient care — counseling, outpatient programs, physician services, and opioid use disorder treatment services delivered through opioid treatment programs.

Part D covers prescription drugs, which is where buprenorphine products and medications for alcohol use disorder generally sit.

Medicare Advantage (Part C) replaces A and B through a private plan and usually folds in drug coverage. It must cover at least what Original Medicare covers, but it runs on networks and prior authorization — which in practice is where most of the friction lives.

The distinction that matters most

Before calling any program, find out which of these you have. It changes the entire conversation.

With Original Medicare you can generally use any provider that accepts Medicare, without network restrictions. Costs follow standard deductibles and coinsurance, and a Medigap supplement may cover much of your share. Fewer prior authorization hurdles.

With Medicare Advantage you have a network, and going outside it can be expensive or not covered at all. Prior authorization is common for inpatient admissions. The plan may also require that a lower level of care be tried first. None of this makes Advantage worse coverage — but it means the questions you ask a program are different, and the approval step is real.

“Do you accept Medicare?” is the wrong question for an Advantage member. The question is whether they're in network for your specific plan.

What you'll owe, honestly

We're not going to print dollar figures, because Medicare deductibles and coinsurance amounts change annually and a stale number on a website is worse than no number. What's stable is the structure:

Part A inpatient care carries a deductible per benefit period, with daily coinsurance kicking in after an extended stay. Most detox admissions are short enough to fall inside the initial period.
Part B carries an annual deductible and then coinsurance on most services.
Part D costs follow your plan's formulary and tiers.
Medigap supplements can cover much of the Part A and B cost-sharing.
Medicare Advantage plans set their own copays and have an annual out-of-pocket maximum, which Original Medicare alone does not.

For current figures, medicare.gov is the authoritative source. For your specific situation, the free counseling described below is better than any article.

Why this comes up so often around here

Ocean County skews considerably older than New Jersey as a whole — Manchester, Whiting, Berkeley, and the large retirement communities along the Route 9 corridor mean a substantial share of local households are on Medicare.

Two things follow that are worth naming, because they get missed.

Alcohol and benzodiazepine dependence in older adults is underrecognized and, medically, higher risk. Withdrawal tends to be more complicated in the presence of heart disease, liver changes, and other medications, and symptoms get attributed to age or to an existing condition rather than to withdrawal. A long-standing benzodiazepine prescription for sleep — started decades ago, renewed without much thought — is a common and genuinely medical situation, not a moral one.

And Medicare isn't only for people over 65. Beneficiaries who qualified through disability are a meaningful share of those seeking substance use treatment, and they run into the same coverage questions with less familiarity around them.

What to do

Identify your coverage. Look at the card. A red, white and blue Medicare card means Original Medicare. A card with an insurance company's name means Medicare Advantage — and that company is who you call about coverage.

Call the number on the back of the card and ask specifically: is inpatient withdrawal management covered, is prior authorization required, and which nearby facilities are in network.

Ask programs the network question directly — in network for my plan, not merely accepts Medicare.

Use free counseling. Every state runs a State Health Insurance Assistance Program offering free, unbiased Medicare help. They have no financial interest in your decision, and for a complicated situation they are more useful than any program's billing department.

If it's an emergency, go. Emergency departments treat people regardless of coverage. Sort out billing afterward.

Related: the general insurance guide, NJ Medicaid coverage if you may qualify for both, and questions to ask before entering detox.

This article is educational and is not medical advice, diagnosis, or treatment. Decisions about stopping any substance — especially alcohol or benzodiazepines — belong in a conversation with a licensed medical professional. Read our full medical disclaimer.

Common questions

Does Medicare cover detox?: Yes, when it's medically necessary. Part A covers inpatient hospital care including withdrawal management during an admission. Part B covers outpatient treatment, and Part D covers prescription medications. What you pay depends on the setting and on whether you have Original Medicare, a Medicare Advantage plan, or supplemental coverage.
Does Medicare cover rehab after detox?: Yes. Medicare covers inpatient and outpatient mental health and substance use treatment, including counseling, intensive outpatient services, and medication for opioid use disorder. Coverage rules and cost-sharing differ between Original Medicare and Medicare Advantage plans.
Does Medicare cover methadone or Suboxone?: Medicare covers opioid use disorder treatment services, including medication provided through opioid treatment programs, and Part D plans cover buprenorphine products. Which specific medications are covered and at what cost depends on your Part D or Advantage plan's formulary.
Do you have to be 65 to have Medicare?: No. People under 65 qualify through Social Security Disability Insurance after a waiting period, and some qualify through end-stage renal disease or ALS. A meaningful share of Medicare beneficiaries seeking substance use treatment are under 65.
What if you have both Medicare and Medicaid?: If you're dually eligible, Medicare generally pays first and NJ FamilyCare may cover remaining costs, which can substantially reduce or eliminate out-of-pocket expense. Tell the program you have both — it changes how they bill and what you owe.

Need help understanding detox options?

Call 888-918-2001

Calls to 888-918-2001 are answered by treatment professionals who can help connect you with mental health or substance abuse treatment, including outpatient care. This line is not an emergency service, a government agency, or a doctor's office. Calling is free and doesn't commit you to anything.

Sources

Medical claims on this page follow the clinical guidance below. This content is educational — not medical advice — and doesn't replace evaluation by a licensed clinician.