From 2009 to 2013, Christakis and his wife, Erika Christakis, were Co-Masters of Pforzheimer House, one of Harvard's twelve residential houses.
Pada tahun 2009, Christakis dan istrinya, Erika Christakis, ditunjuk Co-Masters dari gedung Pforzheimer, salah satu dari 12 rumah hunian Harvard.