Mary Lou de Leon Siantz, Ph.D., R.N., F.A.A.N. Professor Betty Irene Moore School of Nursing UC Davis Health Mary Lou de Leon Siantz is a professor at the Betty Irene Moore School of Nursing at UC Davis and founding director of the Center for the Advancement of Multicultural Perspectives on Science (CAMPOS). deleonsiantz@ucdavis.edu Faculty Page