Cost is one of the most common reasons people delay or avoid getting treatment for addiction — and one of the most frequently misunderstood. Many people assume rehab is too expensive, don’t know their insurance covers it, or don’t realize low-cost and no-cost options exist. The reality is that treatment is more financially accessible than most people realize.
Does Insurance Cover Addiction Treatment?
Yes — and it’s required to by federal law. The Mental Health Parity and Addiction Equity Act (MHPAEA) and the Affordable Care Act (ACA) together require that most health insurance plans cover substance use disorder treatment at the same level as other medical conditions. This applies to employer-sponsored health insurance, ACA marketplace plans, Medicaid, and Medicare.
What’s covered typically includes:
- Medically supervised detox
- Inpatient/residential rehab
- Partial hospitalization (PHP)
- Intensive outpatient programs (IOP)
- Outpatient counseling
- Medication-assisted treatment (MAT) including buprenorphine and methadone
What to do first: Call the member services number on the back of your insurance card. Ask specifically about your behavioral health benefits, your in-network treatment facilities, and your out-of-pocket costs. Many facilities will also do this verification for you if you call them directly.
Using Medicaid for Addiction Treatment
Medicaid covers addiction treatment in all 50 states, and in many states the coverage is comprehensive — including residential rehab, MAT, IOP, and outpatient counseling. For low-income individuals and families, Medicaid is often the most accessible path to treatment with minimal or no out-of-pocket cost.
If you don’t have Medicaid: You may qualify and not know it. Medicaid eligibility was expanded under the ACA in most states. To check eligibility and apply, visit healthcare.gov or your state’s Medicaid agency website.
GTH’s facility search lets you filter by insurance type — including Medicaid — to find facilities near you that accept it.
Find Medicaid-Accepting Treatment Centers →
Using Medicare for Addiction Treatment
Medicare covers addiction treatment for adults 65 and older, and for younger adults with qualifying disabilities.
- Medicare Part A: Inpatient/hospital-based detox and residential treatment
- Medicare Part B: Outpatient substance use disorder treatment, individual and group therapy, MAT office visits
- Medicare Part D: Prescription drug coverage including MAT medications
ACA Marketplace Plans
If you purchase insurance through the ACA marketplace (healthcare.gov), your plan is required to cover substance use disorder treatment as an essential health benefit. Higher-tier plans (Gold, Platinum) typically have lower out-of-pocket costs for treatment.
If you don’t currently have insurance, a substance use disorder diagnosis may qualify you for a Special Enrollment Period outside the standard enrollment window.
TRICARE for Military and Veterans
Active duty service members, veterans, and their dependents covered by TRICARE have behavioral health benefits that include substance use disorder treatment. Veterans should also contact the VA directly — VA healthcare includes comprehensive addiction treatment services at no cost for eligible veterans.
State-Funded Treatment Programs
Every state has a State Substance Abuse Agency (SSAA) that funds treatment programs for residents who are uninsured or underinsured. These programs are often free or available on a sliding-scale fee based on income.
To find state-funded treatment: contact your state’s SSAA directly, or call SAMHSA’s National Helpline at 1-800-662-4357 — counselors can connect you with state-funded programs in your area.
Sliding Scale and Self-Pay Options
Many nonprofit treatment centers offer sliding-scale fees based on income — your cost is calculated as a percentage of what you can afford to pay. Some offer partial scholarships or grant-funded beds for patients who qualify.
When calling treatment centers, ask directly: “Do you offer a sliding scale or financial assistance for patients without insurance?” Many facilities have more flexibility than their websites suggest.
What to Do If You Can’t Afford Treatment Right Now
If cost is an immediate barrier, these resources provide free support while you navigate longer-term options:
- SAMHSA National Helpline: 1-800-662-4357 — free, confidential, 24/7
- Crisis Text Line: Text HOME to 741741
- AA/NA meetings: Free peer support, widely available in-person and online
- Community mental health centers: Many offer outpatient counseling and MAT at low or no cost
Don’t let cost be the final answer. Most people who ask for help navigating the financial side of treatment find more options than they expected.
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Frequently Asked Questions
Does insurance have to cover rehab?
Federal law (MHPAEA and the ACA) requires most health insurance plans to cover substance use disorder treatment at the same level as other medical care. This includes employer plans, ACA marketplace plans, Medicaid, and Medicare.
How do I know if a treatment center accepts my insurance?
Call the facility directly and ask. Most treatment centers have dedicated admissions staff who can verify your benefits and tell you your out-of-pocket cost before you commit. GTH’s facility search also shows insurance accepted for each listed facility.
Can I get free addiction treatment?
Yes — state-funded treatment programs exist in every state and are free or income-based for qualifying residents. Call SAMHSA’s helpline at 1-800-662-4357 for help finding free treatment near you.
What if I have Medicaid but the treatment center I want doesn’t accept it?
Ask the facility whether they have sliding scale options or scholarship beds. Alternatively, use GTH’s browse tool to filter for Medicaid-accepting facilities near you — there are 12,000+ SAMHSA-verified facilities in the database, and many accept Medicaid.
Does insurance cover medication-assisted treatment (MAT)?
Most insurance plans, Medicaid, and Medicare cover MAT medications including buprenorphine, methadone, and naltrexone. Verify MAT coverage specifically when calling your insurance.
How long will insurance pay for rehab?
Coverage length depends on your specific plan and clinical need. Insurance companies authorize treatment in increments based on clinical review — typically 7–30 days initially for residential treatment, with extensions authorized based on continued medical necessity.