While the hospital was established for the care of the mentally ill, its use expanded during outbreaks of tuberculosis, typhoid, diphtheria, influenza, and polio. It also cared for the elderly, served as a rehab for drug addicts, and was used to train nurses. After Munson's retirement, James Decker Munson Hospital was established in his honor on the grounds in 1926, and was operated by the state well after his death and into the 1950s. It was then replaced by Munson Medical Center in the 1950s, the largest hospital in northern Michigan and one of the largest in the state. A portrait of Dr. Munson hangs inside the main lobby of Munson Medical Center. By the time it closed in 1989, pieces of the property had been split between Munson hospital, the Pavilions, Garfield Township and (later) T.M.G.