Does Medicaid Cover Rehab?

If your insurance is Medicaid, the useful information is less whether it covers rehab (yes, under federal parity) and more what are the specific mechanics for your specific plan product. Deductible $0 in most states. Coinsurance $0–$5 per service. OOP max federally capped at 5% of family income. The rest of this page walks through the non-obvious parts.

Parity enforcement — what the 2024 rule changed

The 2024 federal parity rule added operational teeth to the 2008 MHPAEA statute. Medicaid — like every major insurer — now must produce a comparative analysis showing that its behavioral-health friction is not worse than its medical-surgical friction. Medicaid's compliance posture is mid-range — neither the most restrictive of the majors nor the most permissive — and the experience varies meaningfully by specific plan product.

Medicaid plan types

Medicaid's plan types — Traditional fee-for-service, Medicaid Managed Care (MCO), 1115 SUD Waivers, CHIP, Dual-Eligible (Medicaid + Medicare) — produce materially different benefit designs for the same patient. Before pursuing any specific facility, identify which product is on your ID card. The downstream decisions all pivot on that one data point.

A note on medication-assisted treatment

MAT coverage with Medicaid: all state Medicaid programs now cover buprenorphine, methadone, and naltrexone for opioid use disorder. Under the 2024 parity rule, restrictive MAT formulary tiering is a commonly-flagged parity violation. If your experience with MAT access differs from medical-surgical long-term medication, that disparity is actionable.

When Medicaid denies — appeal playbook

If Medicaid denies, the window is 60 days for internal appeal and 72 hours for expedited review when treatment is in progress. Most accredited facilities that accept Medicaid have utilization-review staff who will file the first-level appeal on the patient's behalf; ask explicitly.

Before admission

Before admission on Medicaid, three documents are worth collecting in writing: a current Summary of Benefits and Coverage from member services (call your state Medicaid agency or managed-care plan); a written Verification of Benefits from the proposed facility; and the plan's medical-necessity criteria for the requested level of care. Proceeding without all three is the source of most post-admission cost-sharing disputes.