He is an attending critical care physician in the Pediatric Intensive Care Units at Seattle Children’s Hospital and at Harborview Medical Center, both in Seattle. After receiving his M.D. from Indiana University he completed a pediatric residency at the Children’s Hospital of Pittsburgh where he also served as Chief Resident. He trained in pediatric critical care at Children’s Hospital in Seattle and received a PhD in Bioengineering from the University of Washington. He has an active research program developing optical spectroscopic technologies for clinical assessment of cellular oxygenation and mitochondrial function.