By State · SAMHSA-verified directory
Addiction treatment in Illinois
708 verified treatment centers across Illinois. Overdose rate 31.3 per 100,000 (CDC 2023) · Medicaid expanded.
708
Centers
20
Cities
Expanded
Medicaid
24/7
Helpline
Treatment centers in Illinois
Every listing sourced from SAMHSA Treatment Services Locator.
McLean County Center for Human Servs Main Office
Bloomington, IL
Advent Health Adventist/Hinsdale Behav Health
Hinsdale, IL
Access Evanston Rogers Park Family
Chicago, IL
Telecare El Dorado County Psychiatric Health Facility
Wheaton, IL
Ellie Mental Health Redwood City
Palatine, IL
Amita Mercy Medical Center Behavioral Health Services
Aurora, IL
NuLife Behavioral Health Indiana
Buffalo Grove, IL
Youth and Family Counseling Gurnee Location
Gurnee, IL
SSM Health DePaul Hospital - St. Louis
Centralia, IL
Maryville Acad/Des Plaines Campus
Des Plaines, IL
Access Brandon Family Health
Chicago, IL
Bobby Buonauro Clinic
Evanston, IL
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Cities in Illinois with verified facilities
20 cities. Click through for city-specific listings.
Chicago
166 centers
Palatine
38 centers
Joliet
24 centers
Aurora
22 centers
Peoria
19 centers
Waukegan
13 centers
Wheaton
12 centers
Springfield
12 centers
Elgin
11 centers
Quincy
10 centers
Flossmoor
10 centers
Bellwood
10 centers
Skokie
8 centers
Rockford
8 centers
Dixon
8 centers
Arlington Heights
8 centers
Frankfort
7 centers
Decatur
7 centers
Buffalo Grove
7 centers
Rock Island
6 centers
Understanding treatment in Illinois
Illinois has 708 SAMHSA-verified treatment facilities spread across the Midwest. The practical task of choosing among them is less about information volume (every center has a website) and more about the right filter. The paragraphs below provide that filter.
The Medicaid question
Regarding public coverage in Illinois: Illinois expanded Medicaid in 2014 under the Affordable Care Act. The significance is structural — has realistic access to Medicaid coverage for addiction treatment once enrolled, and that fact ripples into facility-level economics, charity-care availability, and the real network a patient can access.
The overdose-mortality context
The overdose rate in Illinois runs 31.3 per 100,000 residents (CDC 2023). That number is a useful input, not a verdict — it reflects the scale of the local crisis and helps calibrate urgency. Cook County fentanyl-related mortality versus downstate MAT access gap Treatment-planning decisions work backward from what the local epidemiology implies.
How access actually works in Illinois
Access in Illinois is more uneven than aggregate data suggests. Cook County fentanyl-related mortality versus downstate MAT access gap For a patient trying to narrow the 708 facility list to 3-5 candidates, the practical filter is: (1) in-network status with your specific plan product; (2) ASAM-aligned level-of-care match; (3) MAT policy for opioid use disorder. Anything less than all three leaves gaps.
What to do next
The most productive next step in Illinois is usually an outside clinical assessment — a primary-care doctor, a licensed substance-use counselor, or the SAMHSA National Helpline (1-800-662-HELP). The assessment clarifies what level of care is actually warranted, which is the foundation for everything that follows.
Last updated April 2026. Sources: SAMHSA Treatment Locator, CDC WONDER (overdose mortality 2023), KFF Medicaid Tracker, ASAM Criteria 4e. See our editorial policy.