Assessment Services This program provides initial comprehensive assessments to individuals seeking services to address mental health or substance use concerns. Open Access Assessment services are available for individuals with Medicaid. Individuals with private health insurance, Medicare or children aged 4 and under must be scheduled to ensure the appropriate assessment tool and clinician is available. This service is available in Franklin, Madison, Jackson, and Williamson counties. To learn more about the program being offered in the Alton area, please click here. To learn more about the program being offered in Southern Illinois, please click here.