Established by physicians in 1922, Dreyer Medical Clinic is an affiliate of Advocate Health Care. With more than 150 physicians representing nearly 30 different medical specialties, Dreyer offers a full range of ancillary services within its facilities and the support of over 60 allied health professionals. Dreyer has eleven convenient sites located in Aurora, Batavia, Oswego, Yorkville, Plainfield, and Hinckley.