Stuart M. Sprague is an American nephrologist and Clinical Professor of Medicine at the Pritzker School of Medicine.[1] He received his undergraduate degree from Michigan State University and his doctorate from Michigan State University College of Human Medicine. He completed his internal medicine training at Rush-Presbyterian-St. Luke’s Medical Center in Chicago, and completed a nephrology clinical and research fellowship at the University of Chicago. He is a chief of the Division of Nephrology and Hypertension and a founder of Chronic Kidney Disease Clinic. In 1995 he joined NorthShore University HealthSystem and before that was a director of both the University of Chicago's Renal Bone Program and Hospitals Chronic Hemodialysis Unit.[2] He has high interest in kidney stones, post transplant bone disease and, metabolic bone disease.[2]