Dr. Paul Coderre treated my father who is in his eighties for complications resulting from duodenal ulcer at the ER. He accurately diagnosed the cause of the internal bleeding and cauterized the ulcer. My father was hospitalized for about a week. Dr. Coderre recommended a follow up endoscopy. After the endoscopy results were in he scheduled another follow up to inform my father that the ulcer had healed and recommended the maintenance of a one month treatment regime. This GI specialist is intelligent, meticulous, patient and caring. I would recommend him for treating bleeding ulcers.