Founded in 1931, the Carle Clinic Association is one of the largest medical groups in the United States. It maintains a staff of more than 2,300 employees and operates over 10 locations in central Illinois. The association operates the Carle Foundation Hospital, Carle Spine Institute and Carle Cancer Center. The Carle Clinic Association offers adult medicine, audiology, cardiology and cancer care services. It provides treatment solutions to patients with infectious diseases, allergies, and back and neck pain. The association also offers urology, weight management, sports medicine, radiology, podiatry, and psychology and psychiatry services. The Carle Clinic Association provides nephrology, gastroenterology, dermatology, eye care, and plastic, cardiac and vascular surgical solutions.