Nathaniel Ranney, MD, specializes in gastroenterology at Ochsner Health. They provide comprehensive care for conditions affecting the digestive system, including the bile ducts, gallbladder, esophagus, stomach, small intestine, large intestine, colon and rectum. They treat patients for ulcers, celiac disease, Crohn's disease, chronic gastrointestinal bleeding, colitis, constipation, diarrhea, diverticulitis, gallstones, inflammatory bowel disease, irritable bowel syndrome, pancreatic conditions, small bowel disease and swallowing problems.