Dr Cai is active in the many gastroenterology societies, such as American Society of Gastrointestinal Endoscopy, American college of gastroenterology, etc and having served on many committees, such as the Annual Scientific Program Committee (ASGE), Research Committee (ASGE), Education Committee (ACG), Training Committee (ACG) and International Committee(AGC) among others. He was Chairman for the international committee of ACG. While he is active on many journals, he serves as an Associate Editor for the American Journal of Gastroenterology. His many teaching awards include the Mentor for Outstanding Research Award for Trainee—Interventional Endoscopy from American College of Gastroenterology. He has published over 100 peer reviewed publications, 3 books, and has a large number of presentations and abstracts.