2022 Distinguished Alumni Award for Achievement: James Christensen, MD
James Christensen (64R–gastroenterology) is an internationally recognized physician, scholar, and scientist responsible for major contributions to the understanding and management of gastrointestinal tract diseases. He provided the first explanation of the motions of the human esophagus in swallowing, proved the existence of the lower esophageal sphincter, and discovered the pacemaker cells of the colon. Christensen became the first director of the Division of Gastroenterology in the Carver College of Medicine in 1971, serving there for 17 years and concurrently as the director of the division’s National Institutes of Health academic training program. Christensen received the Janssen Award for Lifetime Achievement in Gastrointestinal Motility from the American Gastroenterological Association in 1997. He has been a University of Iowa professor emeritus of internal medicine since his retirement in 1998.