Decision Guide · Updated May 2026
Medicare
vs
Medicaid
Medicare vs Medicaid for Rehab
Compare Medicare and Medicaid across 12 decision points — cost, evidence, named criteria for choosing each option.
Last reviewed May 12, 2026
SAMHSA & NIDA sourced
12 data points
10 FAQ
6 sources
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Reviewed by RehabHive Editorial Team · Last updated May 12, 2026
Medicare is age- or disability-based federal insurance with broader provider choice but limited residential SUD coverage; Medicaid is income-based state-federal insurance with comprehensive residential SUD coverage including IOP, PHP, and MAT under the ACA Essential Health Benefits expansion. Original Medicare does NOT cover standalone residential rehab, but Medicare Advantage plans may. Medicaid covers the full ASAM continuum in expansion states. Dual-eligible individuals (qualifying for both) get most comprehensive coverage. Verify your state Medicaid plan and Medicare option at medicare.gov.
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Side-by-side comparison (12 decision points)
| Factor | Medicare | Medicaid |
|---|---|---|
| Eligibility | Age 65+, SSDI 24+ months, ESRD, or ALS | Income ≤138% FPL (expansion states) or other state criteria |
| Standalone Residential Rehab | NOT covered (Original); some MA plans cover | Covered (Levels 3.1, 3.5, 3.7) |
| Hospital Inpatient Detox | Covered Part A ($1,676 deductible 2026) | Covered, $0-$25 copay |
| IOP (ASAM 2.1) | Covered Part B, 20% coinsurance | Covered, $0 copay typical |
| PHP (ASAM 2.5) | Covered Part B, 20% coinsurance | Covered, $0 copay typical |
| OTP Methadone | Covered Part B at SAMHSA-OTPs, 20% coinsurance | Covered, $0 copay typical |
| Buprenorphine (Suboxone) | Part D, $0-$10 generic preferred tier | Covered, $0-$4 copay typical |
| Vivitrol (XR Naltrexone) | Part B, 20% coinsurance | Covered, $0 copay typical |
| Family Therapy | Limited (individual only typically) | Covered when integrated with member treatment plan |
| Transportation Assistance | Limited (some MA plans) | NEMT benefit available in most states |
| Annual Out-of-Pocket Maximum | No federal max (Medigap reduces); MA plans have caps | Effectively $0 for most services |
| Provider Choice | Any Medicare-accepting provider (Original) | Limited to MCO network typically |
Pros and cons
Medicare
Pros
- <strong>No income or asset limits.</strong> Medicare eligibility is based on age (65+) or qualifying disability, not income. You can have any income or assets and qualify.
- <strong>Broad provider choice.</strong> Original Medicare lets you use any Medicare-accepting provider nationwide. Medicare Advantage has plan-specific networks but typically wider than Medicaid HMO.
- <strong>OTP methadone covered Part B.</strong> Since the 2020 SUPPORT Act, Medicare Part B covers methadone treatment at SAMHSA-certified Opioid Treatment Programs at the weekly bundled rate.
- <strong>Generic buprenorphine $0-$10 Part D.</strong> Generic sublingual buprenorphine-naloxone is on most Part D plans’ preferred tier at $0-$10 copay in 2026 under the CMS opioid use disorder benefit.
- <strong>No state-level eligibility variation.</strong> Medicare is uniformly federal — same benefits in every state. No need to re-qualify when moving or traveling.
- <strong>IOP and PHP covered Part B.</strong> Medicare Part B covers Intensive Outpatient Programs (since 2024 SUPPORT Act 2.0 expansion) and Partial Hospitalization Programs for SUD.
Cons
- <strong>No standalone residential coverage.</strong> Original Medicare does not cover freestanding 28-day residential rehab; only hospital-based admissions for medically necessary detox or acute psychiatric care.
- <strong>20% Part B coinsurance.</strong> Without Medigap supplement, Medicare beneficiaries pay 20% coinsurance on outpatient MAT services, Vivitrol injections, and OTP methadone.
- <strong>190-day lifetime psychiatric limit.</strong> Medicare Part A imposes a 190-day lifetime cap on inpatient admissions to specialty psychiatric hospitals (general hospital admissions for SUD do not count).
- <strong>Need separate Part D for buprenorphine.</strong> Original Medicare beneficiaries need standalone Part D prescription drug plan for buprenorphine — additional monthly premium.
Medicaid
Pros
- <strong>Standalone residential rehab covered.</strong> Medicaid covers freestanding residential SUD treatment (ASAM Level 3.1, 3.5, 3.7) as Essential Health Benefit in expansion states, unlike Original Medicare.
- <strong>Comprehensive MAT coverage.</strong> Medicaid covers all three FDA-approved MAT medications (buprenorphine, methadone, naltrexone) with typically zero copay.
- <strong>Zero or minimal copays.</strong> Most Medicaid SUD services have $0 copay. Some states impose small copays ($1-$4) for prescriptions, but emergency and SUD treatment usually free.
- <strong>Care coordination services.</strong> Medicaid plans (especially health home models) provide care managers, peer recovery specialists, and warm hand-offs between providers.
- <strong>Transportation assistance.</strong> Medicaid Non-Emergency Medical Transportation (NEMT) benefit covers rides to and from treatment appointments in most states.
- <strong>Children and family coverage.</strong> Medicaid covers children of low-income parents and provides family therapy benefits; Medicare covers individual only.
Cons
- <strong>Income/asset eligibility limits.</strong> Medicaid eligibility requires meeting state income limits (typically ≤138% FPL in expansion states). Many middle-income people do not qualify.
- <strong>State-level variation in benefits.</strong> Medicaid coverage varies by state. Non-expansion states have narrower benefits and lower income thresholds for eligibility.
- <strong>Narrower provider networks.</strong> Medicaid managed care organizations (MCOs) often have narrower SUD provider networks than Medicare or commercial insurance.
- <strong>Re-enrollment / redeterminations.</strong> Medicaid requires annual eligibility redetermination. Income changes or paperwork issues can disrupt coverage continuity during treatment.
When to choose each option
Named decision criteria for matching your specific situation to the right option.
When to choose Medicare
Primary indicators
- Age 65 or older
- Receiving SSDI for 24+ months (any age)
- Diagnosed with end-stage renal disease or ALS
Additional considerations
- Need OTP methadone or outpatient buprenorphine with broad provider choice
- Have Medigap or Medicare Advantage with residential supplemental benefit
- Do NOT qualify for Medicaid (income too high)
When to choose Medicaid
Best-fit scenarios
- Income at or below 138% Federal Poverty Level (expansion states)
- Need standalone residential rehab (Level 3.1, 3.5, or 3.7)
- Need comprehensive IOP/PHP without high copays
Further considerations
- Need MAT with zero copay
- Need transportation assistance or care coordination
- Are children, pregnant, or family of qualifying individual
Cost & financial impact
Pricing ranges with cited sources (SAMHSA TIP, MEPS, AHRQ, KFF).
Original Medicare Part A inpatient hospital deductible is $1,676 per benefit period in 2026, with $419/day coinsurance days 61-90. Medicare Part B has $240 annual deductible and 20% coinsurance on outpatient services unless Medigap supplements cover. Medigap Plan G ($120-$200/month) covers all Part B coinsurance, eliminating MAT out-of-pocket. Medicare Part D plans charge $0-$10 for generic buprenorphine on most preferred tiers in 2026. Medicare Advantage plans typically charge $200-$400 admission copay, with some adding supplemental residential SUD benefits. Medicaid costs are minimal: most SUD services $0 copay, prescriptions $0-$4. Dual-eligible individuals (Medicare + Medicaid) pay essentially nothing — Medicaid covers Medicare cost-sharing.
Our verdict
Choose Medicare if...
age 65+, qualifying disability (24+ months on SSDI), end-stage renal disease, or ALS — needing hospital-based detox, outpatient counseling, or OTP methadone with broad provider choice
Learn more about Medicare →Choose Medicaid if...
low-income individuals (income typically ≤138% Federal Poverty Level in expansion states), needing comprehensive residential rehab, IOP, PHP, MAT, and care coordination with zero or minimal copays
Learn more about Medicaid →Still not sure which is right for you?
The level of care is a clinical decision based on addiction severity, withdrawal risk, and your home situation — not just personal preference. A free, confidential 2-minute self-assessment can help you gauge severity before you call, and our team can verify your insurance and match you to the right level of care at no cost.
Frequently asked questions
Does Medicare cover rehab?
Medicare covers hospital-based inpatient detox (Part A), outpatient counseling and MAT (Part B), and prescription buprenorphine (Part D). Original Medicare does NOT cover standalone residential rehab at freestanding facilities. Select Medicare Advantage plans add residential supplemental coverage. IOP and PHP are covered under Part B since 2024.
Does Medicaid cover rehab in all states?
Yes, but coverage depth varies. In Medicaid expansion states (40 states + DC as of 2026), Medicaid covers full ASAM continuum including residential rehab. In non-expansion states, eligibility is more restrictive and benefits narrower. Verify your state Medicaid plan benefits at medicaid.gov.
Can I have both Medicare and Medicaid?
Yes. Dual-eligible individuals qualify for both programs when they are 65+ or disabled AND meet Medicaid income limits. Medicaid covers Medicare cost-sharing (deductibles, coinsurance) and provides services Medicare doesn’t cover (e.g., residential rehab, transportation, long-term care).
Which is better for inpatient rehab — Medicare or Medicaid?
For standalone freestanding residential rehab, Medicaid is significantly better — it covers ASAM Level 3.1, 3.5, and 3.7 at minimal copay in expansion states, while Original Medicare does not cover these. For hospital-based detox, both cover comparably (Medicare via Part A, Medicaid via inpatient hospital benefit).
Does Medicare cover suboxone?
Yes. Generic buprenorphine-naloxone (Suboxone) is covered under Medicare Part D prescription drug plans, typically at $0-$10 copay on preferred tier in 2026. Brand Suboxone film and Sublocade extended-release injection require prior authorization. Original Medicare beneficiaries need standalone Part D coverage for prescription buprenorphine.
Does Medicaid cover methadone?
Yes. Medicaid covers methadone for OUD at SAMHSA-certified Opioid Treatment Programs (OTPs) at $0 copay in most states. Medicaid OTP coverage was expanded under the 2018 SUPPORT Act and is now nearly universal across state Medicaid programs.
What is the income limit for Medicaid rehab coverage?
Medicaid eligibility income limits vary by state and category. In expansion states (40 states + DC), adults qualify at up to 138% Federal Poverty Level ($20,783/year individual, $42,776/year family of 3 in 2026). Pregnant women, children, and disabled individuals have higher income thresholds. Check your specific state at medicaid.gov.
Does Medicare Advantage cover rehab differently than Original Medicare?
Some Medicare Advantage plans add supplemental residential SUD coverage that Original Medicare lacks. MA plans also typically have lower copays on outpatient MAT and may waive prior auth on generic buprenorphine. Trade-off: MA plans use networks (HMO requires in-network); Original Medicare uses any Medicare-accepting provider.
How long does Medicaid cover rehab?
Medicaid covers rehab as long as medically necessary per ASAM Criteria. There is no fixed maximum length-of-stay under MHPAEA. Most Medicaid plans authorize 5-14 days initial residential, with concurrent review extending stays as needed. Average covered residential stay nationally is 14-28 days.
Will I lose Medicaid if I get a job during rehab?
Possibly. Medicaid eligibility is based on monthly income; if your post-treatment income exceeds the limit, you may lose Medicaid. However, transitional Medicaid (12 months for certain populations) and ACA marketplace subsidies may bridge coverage. Notify your state Medicaid agency about income changes; many states have continuous-enrollment protections during active treatment.
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Last reviewed: May 12, 2026 • Sourced from SAMHSA, NIDA, peer-reviewed literature • Reviewed by RehabHive Editorial Team • Editorial policy
