Responsibilities Registered Nurse (RN) - Emergency Department (ED) Full-time, NIGHTS Shift position located at Corona Regional Medical Center in Corona, CA Sign On Bonus The tradition of caring that culminated in the establishment of Corona Regional Medical Center began in 1965, with the founding of Corona Community Hospital. Operating acute care hospitals, behavioral health facilities, outpatient facilities and ambulatory care access points, an insurance offering, a physician network and various related services located all over the U.S. States, Washington, D.C., Puerto Rico and the United Kingdom.