Truman Blvd. in Jefferson City. From Westphalia, Maasen received her associate’s and bachelor’s degrees in nursing from Lincoln University. Maasen has worked at the ICU step-down unit at Capital Region Medical Center, and in surgery, as a circulating nurse and on the open heart team in Illinois. She received her master’s degree in nursing from Maryville College, working at SSM Health for nearly five years and became a nurse practitioner.