Digestive Health Services Gastroenterologist in Downers Grove Call Address Downers Grove: 3825 Highland Avenue Tower 2, Suite 302 Downers Grove, IL 60515 Book Appointment Hours of Operation Monday - Friday - 8:00 AM - 5:00 PM Saturday -: 8:00 AM - 12:00 PM Doctors Working Here Dr. Rockford Yapp, MD Dr. Lesley Dawravoo, MD Dr. James Clark, MD Dr. Anshuman Chawla, MD