Northwestern Medicine Gastroenterology Grayslake Outpatient Center 1475 East Belvidere RoadPavilion A, Suite 311Grayslake, IL, 60030 View Phone 847-535-6083 TTY: 312-926-6363 1475 East Belvidere Road, Pavilion A, Suite 311Grayslake, IL 60030 View Website Experience & Reliability About Connect with this Business: Reservation Send to My Email Send to My Phone Print this Page