SWGI Specialists; Select Page. Upper GI Endoscopy (EGD) Upper GI Endoscopy. An endoscopy is a minimally invasive medical procedure that evaluates the upper portion of your gastrointestinal (GI) tract, including your esophagus, stomach, and duodenum, the very upper part of your small intestine. ... Uniontown, PA 15401 Phone: (724) 439-8906.