A.T. Still University (ATSU) of Health Sciences is the founding institution of osteopathic healthcare, established in 1892 by Andrew Taylor Still, DO. As a leading health sciences university, ATSU is comprised of three campuses (Mesa, Arizona; Santa Maria, California; and Kirksville, Missouri) on more than 200 acres with seven prestigious schools. The culturally rich learning environments include residential and online healthcare related graduate degrees as well as community-based partnerships worldwide. ATSU has more than 1,300 employees dedicated to its not-for-profit mission and an average annual enrollment of over 3,900 students from 20 countries.