Stuart Kerachsky has led the National Center for Education Statistics (NCES) as Acting or Deputy Commissioner since October 16, 2008. Dr. Kerachsky previously served as Associate Commissioner for Knowledge Utilization in the National Center for Education Evaluation and Regional Assistance within the Institute of Education Sciences (IES). Prior to joining IES, he was a Senior Vice President at Mathematica Policy Research, Inc. His responsibilities over his long career at Mathematica included being Director of Research and Director of Surveys. He has been involved in research in education, employment, disability, child development, and health. Dr. Kerachsky received his Ph.D. in economics in 1975 from the University of Wisconsin.