Dr. Clifford Appel is a gastroenterologist in Danbury, Connecticut and is affiliated with Danbury Hospital. He received his medical degree from Icahn School of Medicine at Mount Sinai and has been in practice for more than 20 years. Dr. Clifford Appel has expertise in treating colonoscopy, upper gi endoscopy, inflammatory bowel disease (ibd), among other conditions - see all areas of expertise. Dr. Clifford Appel accepts Medicare, Aetna, Cigna, Blue Cross - see other insurance plans accepted. Dr. Clifford Appel is highly recommended by patients.