Digestive Health Services – Downers Grove Call Address 3825 Highland Avenue, Tower 2, Suite 302, Downers Grove, IL 60515 Request an Appointment Hours of Operation Monday to Friday 8:00 AM – 6:00 PM Saturday Closed Phone Availability: Monday to Thursday 8:30 AM – 4:30 PM Friday 8:30 AM – 4:00 PM Providers At This Location Dr. Rockford Yapp, MD Dr. James Clark, MD Dr. Anshuman Chawla, MD Dr. Lesley Dawravoo, MD