On Jun. 12, 1987, a crew of just 47 physicians and 225 allied health employees rallied to formally launch Mayo Clinic in Arizona. Before the doors even opened, 1,800 patient appointments had been booked.

Today, the Mayo Clinic in Arizona spans two campuses, comprising more than 400 acres of land, and has added two research buildings on the Scottsdale campus and, on the Phoenix campus, a 244-bed hospital, a specialty clinic, housing for transplant and cancer patients and leased space for a child care center, a hospice and a hotel. Offsite family medicine practices were also added in Scottsdale and Glendale, Ariz.