Gastroenterology 15 Tower Court Suite 210 Gurnee, IL 60031 Phone: 847-599-1444 Call 847-625-8609 for an appointment. ASSOCIATED CARE Gastroenterology Colonoscopy ASSOCIATED PROVIDERS Peter Oshin, MD Marina Sodagar, PA-C ASSOCIATED LOCATIONS 15 Tower Court Suite 265 Gurnee, IL 60031