Previously, she was at the U.S. Department of health and human services, first as a Senior Advisor to the Secretary and later as Assistant Secretary for children and families. Mrs Nazario previous government service includes also the administrator of the Puerto Rico Administration for children and families from 2003 to 2008, Principal Deputy Assistant Secretary for children and families in the U.S. Department of health and human services, and the Secretary for health and social services for the U.S. State of Delaware from 1993 to 1997. Mrs Nazario is a member of the American public human services associations and Puerto Rico College of social workers. She has a Bachelor's degree from the University of Puerto Rico and a M.S.W at Virginia Commonwealth University.