He holds the Henry A. Wise II Endowed Chair in Urology and is the Vice Chair of Clinical Affairs for the Department of Urology and is the Director of the OSU Comprehensive Kidney Stone Program. Dr. Knudsen is a member of the EDGE Research Consortium. He completed his residency program at the University of Manitoba in 2002 and then went on to Fellowship training in Endourology under Dr. John Denstedt and Dr. Stephen Pautler at the University of Western Ontario. His clinical practice is focused on stone disease and HoLEP. Dr. Knudsen has published extensively in the areas of stones disease and medical devices. Dr. Knudsen co-directs an Endourology Fellowship Program at the Ohio State University and offers both 1 and 2 year training positions.