The Mayo Clinic Hospital – Rochester is a 2,059-bed teaching hospital located in Rochester, Minnesota. It comprises the Saint Marys Campus with its Mayo Eugenio Litta Children's Hospital, as well as its Methodist Campus, forming an integral part of the Mayo Clinic academic medical center. Mayo Clinic Hospital – Rochester is ranked first on the 2019–20 U.S. News & World Report Best Hospitals Honor Roll. History Saint Marys Hospital was founded in 1889 by a local Franciscan religious community, the Sisters of Saint Francis of Rochester, Minnesota, led by Mother Alfred Moes. Five buildings at the Saint Marys Campus are named to honor Saint Marys' foundress and first administrator, Mother Alfred, and four Sisters who previously served as hospital administrators: Sisters Joseph, Domitilla, Mary Brigh and Generose. The Francis Building honors the many Franciscan Sisters who have served since the founding of Saint Marys. Originally, the name was spelled "Saint Mary's Hospital", as can be seen in stone above the old front entrance, but in recent years the apostrophe is usually omitted. In January 2014, Saint Marys and Rochester Methodist were consolidated under the name Mayo Clinic Hospital – Rochester. Saint Marys Campus The Mayo Clinic Hospital – Rochester, Saint Marys Campus has 1,265 licensed beds and 64 operating rooms. In 2008, there were 63,000 admissions as well as 28,000 surgical cases that took place in the hospital. The Mayo Clinic Psychiatry and Psychology Treatment Center in the Generose Building is also part of the campus. St. Marys Hospital campus includes the nation's largest intensive care unit, which includes about 200 ICU beds and 200 "step-down" ICU beds. The hospital is accredited as a Level I trauma center and stroke center. It is the seat of the Southern Minnesota Regional Trauma Advisory Committee, serving a population of almost 900,000. Saint Marys has a more than 76-bed emergency department but no obstetrics department, while Rochester Methodist lacks an emergency department but contains an obstetrics department. Saint Marys Hospital Emergency Department provides care for approximately 80,000 patients per year, serving the local population (constituting about 85% of patients) and being a referral for southern and central Minnesota, northern Iowa and western Wisconsin through Mayo One medical helicopter service. The Emergency Department includes a state of the art electronic all comprehensive patient flow system (known as "Yes"), 6 large trauma bays, universal (ICU capable) rooms, dedicated pediatric area, high acuity beds, 9 bed