Does MassHealth Cover Rehab? Levels, Costs, and Eligibility

Yes — MassHealth does cover rehab. The Massachusetts Medicaid program pays for drug and alcohol treatment across the full continuum of care, from emergency detox and inpatient stays through residential programs, intensive outpatient treatment, medication for addiction, and post-treatment recovery support. Members pay nothing out of pocket for these services.¹

What Levels of Rehab Are Covered

MassHealth builds its addiction benefit around the American Society of Addiction Medicine (ASAM) framework, which matches patients to the intensity of care they need. Coverage runs from medically managed hospital detox down to weekly counseling.²

Detox (Acute Treatment Services)

Acute Treatment Services provide 24-hour medically monitored withdrawal management in either a hospital or a freestanding facility. Staff handle the physical symptoms of withdrawal, start addiction medications where appropriate, and plan the next step in treatment. MassHealth covers both ASAM Level 4.0 (medically managed) and Level 3.7 (medically monitored) detox. Programs must admit patients around the clock, every day of the week.³⁴

Clinical Stabilization Services

After detox, many members step down to Clinical Stabilization Services, a 24-hour supervised program in a non-medical setting (ASAM Level 3.5). CSS focuses on intensive education, counseling, relapse prevention, and aftercare planning.⁵

Residential Rehabilitation

MassHealth covers several forms of longer-term residential care:

Transitional Support Services (TSS), short-term stays bridging detox and longer treatment.
Residential rehab for pregnant and parenting women, allowing mothers to keep custody of their children during treatment.
Family residential treatment for homeless families where a parent has a chronic addiction.
Co-occurring enhanced residential rehab for people with both addiction and moderate to severe mental illness.
Youth residential treatment for adolescents and young adults up to age 26, including diagnostic, educational, and pre-vocational services.²

MassHealth regulations don’t cap the number of days a member can spend in residential rehab. The one explicit duration limit applies to pregnant members, whose treatment plan may run no more than ten consecutive months from the start of care.⁶

Outpatient and Intensive Outpatient

Outpatient counseling (individual, group, and family) is covered, along with two levels of intensive outpatient programming. The Structured Outpatient Addiction Program (SOAP) runs at least five days per week, with half-day sessions of 3.5 hours or more, plus a weekly individual session and a weekly family or support group. SOAP programs typically last four to eight weeks.⁷ Enhanced SOAP applies the same structure to specialty populations such as people experiencing homelessness, pregnant members, and adolescents.⁶ Telephonic assessment and management by physicians and other qualified professionals is also covered, which helps members who face transportation or scheduling barriers.²

Medication for Addiction

All three FDA-approved medications for opioid use disorder are covered:

Methadone, dispensed through a certified Opioid Treatment Program.
Buprenorphine (including Suboxone), through an opioid treatment program or an office-based prescriber. Oral buprenorphine may require prior authorization and is capped at 32 mg per day.
Naltrexone (including Vivitrol), in oral or injectable form. The depot injection is capped at 380 mg per month.⁸

MassHealth does not require members taking buprenorphine to attend counseling as a condition of receiving the medication, though counseling is covered when it’s medically necessary.⁹

Recovery Support After Treatment

Two peer and navigator services help members maintain recovery after leaving a program, and neither requires prior authorization.

Recovery Coaches are peers with lived experience of addiction who provide mentoring, emotional and social support, and help navigating systems like housing or the courts. A coach develops a wellness plan with the member and must make at least five contacts every 30 days. Coaches can meet members at home, in an inpatient unit, at a day program, or at a recovery support center, and can also connect by phone, text, or video.¹⁰¹¹

Recovery Support Navigators are bachelor’s-level professionals, supervised by a licensed master’s-level clinician, who handle care coordination, locate open treatment beds, arrange warm handoffs between providers, and resolve insurance issues.¹⁰

What You Pay

Nothing. MassHealth eliminated copayments for all substance use disorder services effective July 1, 2020. That zero-cost policy applies to inpatient detox, residential stays, outpatient counseling, medication for addiction, and recovery support — no copayments, no deductibles, no cost-sharing of any kind.¹

Prior Authorization Protections

State law bars MassHealth and its managed care plans from requiring prior authorization before a member enters acute treatment services. Medical necessity is determined by the treating clinician, not by a plan administrator. For Clinical Stabilization Services, no prior authorization can be required for the first 14 days. The facility must notify the plan of the admission and initial treatment plan within 48 hours, and utilization review may begin on day seven.⁵

MassHealth managed care plans must also comply with the federal Mental Health Parity and Addiction Equity Act, which prohibits plans from imposing more restrictive treatment limits on behavioral health and substance use disorder services than they apply to medical and surgical care. This covers financial requirements, prior authorization practices, and treatment limitations alike.¹²

Which MassHealth Plans Include Rehab

Addiction treatment is included in every major MassHealth coverage type. MassHealth Standard, CarePlus, CommonHealth, and Family Assistance all cover inpatient and outpatient rehab.¹³ Members in managed care plans may have access to services beyond the base fee-for-service benefit and can check their plan’s Summary of Benefits for specifics.¹⁴

CarePlus members whose mental health or addiction condition is serious enough to limit their ability to work, attend school, or manage daily activities may qualify as “medically frail” and transition to MassHealth Standard, which carries a broader benefit package.¹³

Who Qualifies for MassHealth

Most non-elderly adults qualify if their household income does not exceed 138% of the federal poverty level, which for a single person in 2026 works out to roughly $1,769 per month, or about $21,228 per year.¹⁵¹⁶ Applicants must live in Massachusetts. Adults under 65 who aren’t entering a nursing facility can apply through the standard MassHealth application, as can parents and other adult caregivers of children under 19.¹⁷

Finding a Program That Takes MassHealth

The Bureau of Substance Addiction Services Helpline is the main resource for locating treatment in Massachusetts. It helps callers find detox beds, residential programs, outpatient counseling, and support groups.

Phone: 1-800-327-5050
Website: helplinema.org
Hours: Monday through Friday, 8 a.m. to 10 p.m.; weekends and holidays, 8 a.m. to 6 p.m.¹⁸

The helpline’s online directory lets you filter by insurance, so you can search specifically for programs that accept MassHealth or a particular managed care plan.¹⁹ If you’re already in treatment and switch managed care plans, a continuity-of-care period lets you keep seeing your current provider under the new plan while an out-of-network or single-case agreement is worked out.²⁰

If Coverage Is Denied

Members whose rehab coverage is denied have the right to appeal. The process runs in two stages.

First, an internal appeal with the managed care plan. File within 180 days of the denial and include a letter explaining why the denial was wrong, supporting medical records, and, ideally, a letter from the treating provider.²¹

Second, a state fair hearing through the MassHealth Board of Hearings. The request must reach the Board within 60 days of the written denial notice. You can file by mail, fax, email to boh-fairhearingsrequest@mass.gov, or by calling MassHealth Customer Service at 1-800-841-2900. To keep benefits active during the appeal, ask for “aid pending” within 10 days of the denial notice, or before the action takes effect, whichever is later. Hearings are informal and conducted fresh, so you aren’t limited to the evidence the plan originally considered. If the denial is overturned, the decision should be implemented within 30 days, and you may be eligible to be reimbursed for out-of-pocket costs you paid during the gap.²²

1
Mass.gov. MassHealth Covered Services
2
Mass.gov. Substance Use Disorder Treatment Manual
3
Mass.gov. Substance Addiction Services Descriptions
4
Optum/ProviderExpress. Acute Treatment Services Performance Specifications
5
Mass Legal Services. State Law on Substance Use Disorder Services
6
Mass.gov. Substance Use Disorder Treatment Services Regulations, 130 CMR 418.000
7
Molina Healthcare. SOAP Performance Specifications
8
Optum/ProviderExpress. MAT Treatment Bulletin
9
Mass.gov. Review of Counseling for MassHealth Members Receiving MAT
10
Mass.gov. Recovery Coach and Recovery Support Navigator Services
11
Molina Healthcare. Recovery Coach Performance Specifications
12
General Court of Massachusetts. MassHealth Managed Care Parity Report
13
Mass.gov. MassHealth Coverage Types for Individuals and Families
14
Mass Legal Services. Benefits Included in MassHealth by Coverage Type
15
Health Insurance.org. Medicaid Eligibility in Massachusetts
16
Massachusetts Health Connector. Federal Poverty Level
17
Mass.gov. Apply for MassHealth
18
Mass.gov. Facilities and Resources for Section 35 Treatment
19
Helpline MA. Insurance Type Search Filter
20
MassHealth. PCDI Provider Webinar
21
MAMH. Helping People Whose Benefits Are Denied
22
Mass Legal Services. Troubleshooting and Appeals