Intermountain Hospital is a substance abuse rehabilitation and mental health treatment center located in Boise, Idaho. Our fa ... cility provides help to those who have struggled with substance use and psychiatric illness. We offer a path to wellness through clinical and psychiatric rehab. Because no one should cope alone. Intermountain Hospital is located on a spacious 10-acre, park-like campus in Boise, Idaho near the foothills the dramatic Boise Mountains. Our lobby features the natural colors of southwest Idaho in a comfortable, relaxing setting and visitors are greeted at the hospital 24 hours a day by our friendly and professional staff. Intermountain Hospital has been providing quality psychiatric and substance abuse services to Idaho and the western U.S. since 1980; guided by a mission to provide caring, quality health care services to our community, state and region. Additionally, our New Start Center for Recovery features semi-private rooms, an exercise room and other amenities in a free-standing building on the hospital campus. read more