Dr. Gilbert's primary focus is minimally invasive aerodigestive surgery which consists in the use of bronchoscopy, esophagoscopy, thoracoscopy, and the laparoscopy in the treatment of diseases affecting the lungs, mediastinum, esophagus, and stomach. He is interested in the refinement and development of new and existing minimally invasive approaches to the treatment of diseases such as, esophageal cancer, gastric cancer, lung cancer, mediastinal tumors, gastroesophageal reflux disease, hiatus hernia, achalasia and esophageal diverticulum. Dr. Gilbert's research endeavors also involve surgical quality, safety, efficiency initiatives aimed at improving patient experience across the preoperative, intraoperative, and postoperative phases of thoracic surgical care.