Dr. Rainer Gruessner is a highly dedicated and expert medical professional currently serving as a Professor of Surgery and Immunology at the University of Arizona. He is a trusted and accomplished surgeon, physician, and scientist devoted to helping patients with complex disorders of the pancreas, liver and small bowel. He is responsible for a number of firsts in the surgical world including his involvement in the first split pancreas transplant in 1988, he was the first to develop a standardized technique for living donor intestinal transplants in 1997, he was the first to perform a preemptive living donor liver transplant for oxalosis in 1998, he was the first to perform a laparoscopic living donor distal pancreatectomy and nephrectomy in 2000, and the first robot assisted total pancreatectomy with islet autotransplant in 2012. Rainer Gruessner received his medical education and his “summa cum laude” medical thesis from the Johannes Gutenberg University in Mainz, Germany. He did his surgical residency at the same institution. He then moved on to the United States of America to complete a two year fellowship in transplant surgery at the University of Minnesota before moving back to Germany to receive additional clinical training in Vascular and General Surgery.