Part-time, unpaid internship for a student who is currently enrolled in a Clinical Medical Assistant program. Chestnut Health Systems is a leading provider of behavioral and primary health care services. Over four decades, Chestnut has grown to over 700 committed, compassionate employees providing substance use, mental health, and primary care treatment to patients in Central and Southern Illinois. We provide fully integrated care for all our patients by combining behavioral health care services with our community-based primary care health centers. Chestnut also conducts research and training throughout the U.S.A, as well as provides employee assistance programs internationally.