Colorectal Surgical & Gastroenterology Associates (CSGA) which is located in Lexington, Kentucky has a mission to provide you with the highest quality prevention, detection and treatment of digestive diseases in a caring, compassionate manner. Knopp, D.O. - Steven P. Schindler, M.D. - Nathan H. Massey, M.D.) and colorectal surgeons ( Bruce M. Belin, M.D. - John M. Fox, M.D. - Charles L. Papp, M.D. - David J. Svetich, M.D. - John T. Dvorak, M.D. - Jennifer D. are leaders in the field of colorectal care, surgery and gastroenterology, providing a full range of digestive disease services to treat such cases as ulcerative colitis, Crohn’s disease, irritable bowel syndrome, difficulty in swallowing, hepatitis and cancers of the colon and re**um. In addition, we strongly encourage screening for colon cancer and are committed to colon cancer prevention.