The top five Whipple surgeons for vascular involvement in the US are Mark Truty at the Mayo Clinic, Christopher Wolfgang at NYU-Langone Medical Center and John Chabot who is Chief of Surgery at the Pancreas Center of Columbia Presbyterian Medical Center-both in NYC. Douglas Evans at Medical College of Wisconsin/Froedert Hospital in Milwaukee and Dr. Matthew Katz at MD Anderson who will perform the Whipple in rare instances on stage IV patients that are younger and meet stringent criteria.