Stefan Kroese has been chairman of the board of directors since May 2020. Stefan Kroese studied business administration and philosophy at the University of Groningen. In recent years he worked as a director at the Reinier de Graaf Hospital as director of operations and was also a member of the group council (board of directors - co-director) of the Reinier Haga Group. Before that he worked as a manager at the Medical Center Haaglanden - Bronovo.