Largest Non Profit Medical Center
In 1883, when a tornado struck Rochester, the country doctor, William Worrall Mayo, sought help from the Sisters of Saint Francis to care for 40 injured patients. When the crisis was over, Mother Alfred Moes offered to build a hospital if Dr. Mayo and his two sons, Will and Charlie, would serve as surgeons.
Today Mayo Clinic is the largest not-for-profit medical center in the world, employing more than 31,960 people at its Rochester campus - 2,000 of whom are physicians and scientists.
In 2001, Mayo's Gonda Building opened to create the largest interconnected medical facility in the world, at 3.5 million square feet. Future expansion for Mayo in Rochester includes $188 million, 100,000 square foot, proton beam therapy center offering innovative cancer treatments. Opening is scheduled for 2014.