Prior to joining UW Hospital and Clinics, Sauk held the positions of senior vice president and chief information officer for the City of Hope National Medical Center in Duarte, California (1998-2006), and chief information officer for UCI Medical Center in Orange, California (1991-1998). From 1981-1991, he served as director of information services of Detroit Medical Center, and prior to that was director of data processing for Neuendorf Transportation of Madison.
Sauk is a member of the Healthcare Information and Management Systems Society (HIMSS) and the College of Healthcare Information Management Executives (CHIME), and served for three years on the Siemens Executive Advisory Team. He also serves on the Audit Committee of the UW Credit Union's Board of Directors. He holds a BA in communication from the University of Wisconsin-Madison and a master's degree in science administration from Central Michigan University.