CEO John Kastanis welcomes New Jersey Gov. Chris Christie at the official opening of the Cancer Center at University Hospital, Newark, N.J. in 2016.

CEO John Kastanis suits up for a sponsor event with the New York Mets. The Hospital for Joint Diseases sponsored the NY Mets as the official Hospital and Team Physicians. (Sept. 2003)

John Kastanis, CEO, aboard the Temple University MedFlight helicopter.

CEO John Kastanis suits up for a sponsor event with the New York Mets. The Hospital for Joint Diseases sponsored the NY Mets as the official Hospital and Team Physicians. (Sept. 2003)

John Kastanis, CEO, speaks at the opening of the NYU Hospital for Joint Diseases Center for Children in 2002.

John Kastanis, CEO, speaks at the opening of the NYU Hospital for Joint Diseases Center for Children in 2002.

John N. Kastanis (left) , President and Chief Executive Officer, and William A. Perlmuth, Chairman of the Board, on the 12th Floor, where renovations are underway for a new orthopaedic unit.

Pictured from left to right: John N. Kastanis, President and Chief Executive Officer, William A. Perlmuth, Chairman of the Board, Victor H. Frankel, M.D., PhD., KNO, President Emeritus

William A. Perlmuth, Chairman of the Board (left), and John N. Kastanis, President and Chief Executive Officer, at the new state-of-the-art Center for Children.

John N. Kastanis (left), President and Chief Executive Officer, and William A. Perlmuth, Chairman of the Board