The main campus locations for Mayo Clinic are in Rochester, Minnesota; Scottsdale and Phoenix, Arizona; and Jacksonville, Florida, according to its website. In addition, Mayo Clinic Health System has over 70 hospital and clinic locations in Minnesota, Iowa, Wisconsin and Georgia.
The three-part focus of Mayo Clinic consists of patient care, scientific research and education. As of December 2014, over 1 million people, including those from the United States and over 100 other countries, are seen yearly at Mayo Clinic. Over 600 medical doctors and research scientists work toward preventive measures and new treatment of disease, according to its website. Mayo Clinic is also a teaching institution that began its own medical school in 1972.