Founded in 1968, Gateway Foundation operates 16 centers across Illinois, with its Caseyville location offering a comprehensive range of treatment options for individuals struggling with substance use disorders and co-occurring mental health conditions. The Caseyville facility provides personalized outpatient programs, on-site detoxification, virtual services, and residential treatment, all designed to address the underlying causes of addiction through individualized care plans. Treatment approaches are tailored by age and gender, incorporating evidence-based therapies such as cognitive behavioral therapy, dialectical behavior therapy, family counseling, group and individual sessions, mindfulness practices, motivational interviewing, medication-assisted treatment, and 12-Step facilitation. The Joint Commission-accredited facility features shared bedrooms and bathrooms arranged according to age and gender. Residents have access to comfortable community spaces including a lounge with a flat-screen television, a fitness center, basketball court, and outdoor sand volleyball court, creating a supportive environment for recovery and community building.