The Institute of Esophageal and Reflux Surgery specializes in the diagnosis and surgical treatment of patients with foregut disorders. Foregut refers to of the upper portion of the GI tract – the esophagus and stomach. The most common disease of the foregut is GastroEsophageal Reflux Disease (GERD); however many other entities such as LaryngoPharyngeal Reflux (LPR), achalasia, and gastric cancer are also disorders of the foregut.