Chestnut Health Systems Inc
12 North 64th Street, Belleville, IL 62223

Of the 11 treatment providers we list in Belleville, 5 (45%) report intensive outpatient services.
An intensive outpatient program (IOP) typically means nine or more hours of treatment a week, spread over three to five days. Many people step down to IOP after residential care, or use it instead of residential care when home is stable.
12 North 64th Street, Belleville, IL 62223
1 Bronze Pointe Boulevard, Belleville, IL 62226
1450 Caseyville Avenue, Belleville, IL 62226
7650 Magna Drive, Belleville, IL 62223
1450 Caseyville Avenue, Belleville, IL 62226
We list 5 facilities in Belleville, IL reporting intensive outpatient services. Call ahead to confirm availability and wait times.
Ask each facility whether they are licensed by Illinois, whether they accept your insurance or Medicaid, how soon they can admit you, and whether they offer medication for opioid or alcohol use disorder.
Last reviewed 2026-10-06. Facility details come from SAMHSA's FindTreatment.gov locator and facility-provided information. Confirm services, availability and payment directly with the facility.