Professor of Pediatrics and Medical Director of the Stanford Children’s Health Pediatric Kidney Transplant Program at Stanford University School of Medicine. After initial practice as a family physician in Saskatchewan, Canada, he trained in pediatrics at Dalhousie University (Halifax) and University of Manitoba in Canada. Initial Pediatric Nephrology training was at Dalhousie University, then pediatric transplantation at UCLA. He was faculty at University of Manitoba (1991-1999), University of California at San Diego (1999-2007) and now at Stanford since 2007. His previous research was on transplant immunology and renal pathology and image analysis. His focus is now clinical pediatric kidney transplantation; especially tolerance, the problems of infants, highly sensitized recipients, multiorgan transplants, cystinosis and patients with unusual transplant problems. He has published ~95 articles in scientific journals.

He directs the Stanford Pediatric Nephrology Fellowship Program.

He shares his home with his wife, 3 children (intermittently) and a miniature poodle.