Dr. Langdon was born in O'Neill, Nebraska. He graduated from Creighton Preparatory School in Omaha, Nebraska and received his Bachelor of Arts degree from Washington University in St. Louis, Missouri. He received his medical degree from the University of Nebraska College of Medicine. He completed his residency in Internal Medicine and fellowship in Hematology/Oncology at the University of Iowa Hospitals in Iowa City, Iowa. He received his board certification in Internal Medicine and his certification in Medical Oncology. He is director of Bergan Mercy Hospice and serves on the Board for Hospice House. Dr. Langdon is the Assistant Medical Director at the Nebraska Methodist Cancer Center. Dr. Langdon and his wife, Mary Jo, have six daughters.