Coronado Island gastroenterologist, CA 92118, providing colonoscopy, endoscopy, IBS treatment, acid reflux care, and digestive health consultations. Dr. Sergio Flores at San Diego Digestive Disease Consultants delivers board-certified GI care for Coronado patients, alongside the hepatology team at Southern California GI & Liver Centers on the island. Accepts most insurance plans including Tricare. For prescription medications after GI procedures, Walgreens Pharmacy on Orange Ave fills same-day.