He has training in internal medicine, nephrology, immunology, and transplant medicine. He is the Director of Outpatient Transplant Medicine at OHSU and is the Assistant Medical Director of the Laboratory of Immunogenetics and Transplantation. His research focuses on better understanding the immunologic interaction between transplant recipients and donors. His clinical interests are kidney and pancreas transplantation and Immunogenetics. He cares for kidney and pancreas transplant patients in the hospitals of OHSU and the Portland VA as well as in the outpatient clinics.