Addiction and mental health treatment in Williamson County, IL
8 treatment centers.
- Centerstone of Illinois(855) 608‑3560Substance use · Mental health · Carterville · 403 Municipal Drive
- Centerstone of Illinois(855) 608‑3560Substance use · Marion · 1307 West Main Street
- Centerstone of Illinois(855) 608‑3560Substance use · Mental health · Marion · 202 South Bentley Street
- Centerstone of Illinois, Inc.(618) 462‑2331Opioid treatment program · Marion · 202 S Bentley Street
- Johnston City Community Health Center(618) 983‑6911Substance use · Mental health · Johnston City · 14410 Route 37
- Shawnee Health Service and Development(618) 519‑9200Substance use · Mental health · Carterville · 6355 Brandhorst Road
- Shawnee Healthcare(618) 519‑9200Substance use · Mental health · Carterville · 1006 South Division Street
- Shawnee Healthcare(618) 519‑9200Substance use · Mental health · Marion · 3111 Williamson County Parkway
Nearest emergency rooms
- Heartland Regional Medical Center4.0 mi · Marion, IL
- Herrin Hospital4.5 mi · Herrin, IL
- Marion Il VA Medical Center6.6 mi · Marion, IL
Cities in Williamson County
Common questions
How many addiction and mental health treatment centers are in Williamson County, Illinois?
SAMHSA’s FindTreatment.gov directory lists 8 treatment centers in Williamson County: Centerstone of Illinois, Centerstone of Illinois, Centerstone of Illinois, Centerstone of Illinois, Inc., Johnston City Community Health Center, Shawnee Health Service and Development, Shawnee Healthcare and Shawnee Healthcare.
Which treatment centers in Williamson County accept Medicaid?
7 of 8 name Medicaid among the payments they accept: Centerstone of Illinois, Centerstone of Illinois, Centerstone of Illinois, Johnston City Community Health Center, Shawnee Health Service and Development, Shawnee Healthcare and Shawnee Healthcare. Ask whether they take your plan.
Is there a treatment center with services in Spanish in Williamson County?
None of the listed facilities here lists Spanish. SAMHSA’s National Helpline (1-800-662-4357) answers in Spanish and can refer you.
Where is the nearest emergency room to Williamson County?
Hospitals that list emergency services in Medicare data, near Williamson County: Heartland Regional Medical Center, Marion (4.0 mi), Herrin Hospital, Herrin (4.5 mi) and Marion Il VA Medical Center, Marion (6.6 mi). In an emergency, call 911.
Source: SAMHSA, FindTreatment.gov (National Directory of Mental Health and Substance Use Treatment Facilities), retrieved 2026-11-11. SAMHSA publishes no separate release date for this live directory. The directory has no quality ratings, and this list is not a ranking or a recommendation. Methodology