University teaching hospitals have become increasingly aware of their responsibility to improve both the teaching of ambulatory care and the quality of care provided in their clinics. This paper describes how one department of medicine met this challenge by forming a “Medical Polyclinic.” The majority of the department's faculty and house staff, at all academic and training levels, participate in a system of ambulatory care with the following objectives: each patient has a single physician whom he sees by appointment and who coordinates his care; all medical subspecialties are available in the same clinic session; the clinic is attractive and efficient. While these goals are not infrequently met in private group practices, they are unusual in a university teaching hospital, where faculty, house staff, students, and patients each have unique needs, not always compatible. The success and problems of the polyclinic approach are discussed.