Dr. Mark J. Allen is a gastroenterologist in Kansas City, Missouri and is affiliated with multiple hospitals in the area, including St. Luke's Hospital of Kansas City and St. Luke's North Hospital-Barry Road. He received his medical degree from University of Kansas School of Medicine and has been in practice for more than 20 years. Dr. Mark J. Allen has expertise in treating colonoscopy, upper gi endoscopy, inflammatory bowel disease (ibd), among other conditions - see all areas of expertise. Dr. Mark J. Allen accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Mark J. Allen is highly recommended by patients.