Illinois Outpatient Rehabs

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Maryville Academy offers residential long-term inpatient care for teen boys and girls with substance abuse, dual diagnosis or behavioral problems, and for pregnant or postpartum young women. Maryville opoerates multiple locations. Payment by health insurance or self-pay on a sliding scale based on income.

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Rosecrance in Northbrook offers confidential drug and alcohol evaluations for all ages, along with an Intensive Outpatient Program (IOP) for teens and adults, a parent support group, and a Prevention and Early Intervention (PEI) program for patients seeking addiction treatment. The facility accepts clients on opioid medication. Drug screens are available for free or limited cost.

Mental Health Centers of Western Illinois (MHCWI) is a CARF-accredited community behavioral health provider serving Brown, Hancock and Pike counties in western Illinois. Its Mt. Sterling campus at 700 SE Cross Street offers adult and child/adolescent mental health services, substance abuse treatment and residential programs, with a 24-hour after-hours crisis line. MHCWI is a nonprofit organization.

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Healthcare Alternative Systems in Wheaton is an outpatient rehab and intensive outpatient program (IOP) for men and women/ boys and girls. The facility accepts clients on opioid medication.

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Alpharus Health Swansea is an evidence-based outpatient rehab and detox clinic that provides a range of Swansea outpatient treatment programs for substance abuse. The clinic carried the Gateway Foundation name until its parent organisation rebranded as Alpharus Health in August 2026.

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Nuway Community Services is a methadone clinic and SAMHSA-certified opioid treatment program providing medication assisted addiction treatment . The facility accepts pregnant and postpartum women.

Chestnut Health Systems' Granite City site at 50 Northgate Industrial Drive combines primary care with mental health and substance use treatment under one roof, with published weekday hours and walk-in assessment available. The organization works across Illinois and Missouri, reported 1,229 medication-assisted treatment and recovery clients in 2024, and runs school-based services at more than 80 Illinois locations; its Crisis Residential Unit in nearby Maryville provides 24-hour short-term supervised care for adults 18 and over on a voluntary basis, with an average length of stay of 14 days. Medicare, private and military insurance and self-payment are accepted, and Chestnut states that it offers sliding fee discounts to keep care accessible.

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Healthcare Alternative Systems (H.A.S.) is an outpatient rehab and intensive outpatient program (IOP) for men and women, as well as expectant mothers and women with children. The facility accepts clients on opioid medication. Payment assitance available.

Illinois Recovery Center runs a full continuum of care on one campus outside Belleville, Illinois: medical detox, residential treatment, partial hospitalisation and an intensive outpatient program, with medication-assisted treatment available throughout for opioid and alcohol use disorder. The center is accredited by The Joint Commission, treats co-occurring disorders inside the same program rather than referring out, works from a trauma-informed clinical model, and puts the usual length of stay at 30 to 90 days. Private insurance is accepted, including Aetna, Cigna, Blue Cross Blue Shield, UnitedHealthcare, Humana, TRICARE and Ambetter, alongside military insurance and self-pay.

Bridgeway, Inc. has provided community behavioral health and rehabilitation services in western Illinois since 1993 and describes its work as person-centered, helping people build meaningful lives across a network of Illinois locations. Its Windish Drive site in Galesburg offers intensive outpatient and regular outpatient care. Bridgeway is a 501(c)(3) nonprofit organization, and Coverage is through Medicare or military insurance.

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Rosecrance at Fox Drive is a community mental health center in Champaign, IL providing adolescent and adult intensive outpatient programs (IOP) for substance abuse.

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Rosecrance in McHenry offers evidence-based outpatient mental health and addiction treatment for teens and adults, including expectant mothers and women with children. The facility accepts clients on opioid medication. Services offered include medication-assisted treatment, case management services and more.