At Mercy. One, health care is more than just a doctors visit or a place to go when youre in need of medical attention. Our Mission is based on improving the health of our communities that means not only when you are sick but keeping you well. Mercy. One Siouxland Medical Center has earned more national recognition for quality patient outcomes than any other hospital in the region. The medical center has earned multiple honors for its leadership and excellence in several clinical areas including cardiac care, orthopedic services, vascular surgery, stroke care and cancer care. Want to learn more about Mercy. One Siouxland? Click here: Find a Location Sioux City, Iowa (IA), Mercy. One Siouxland. Posting Join the Mercy. One Family! We are looking to hire a PRN Security Officer . As a Security Officer at Mercy. One, you will police the Medical Center property to deter vandalism, prevent illegal entry and maintain order. Assists the Medical Center staff as requested with various tasks. F...Security Officer, Officer, Security, Banking, Medical, Health