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U.S. Department of Health and Human Services

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NCTR Key Officials

William Slikker, Jr., Ph.D., Director


Frederick A. Beland, Ph.D.Director, Division of Biochemical Toxicology870-543-7205
Jefferson H. Carraway, DVM, DACLAMDirector, Veterinary Services Staff870-543-7347
Carl E. Cerniglia, Ph.D.Director, Division of Microbiology870-543-7341
Robert H. Heflich, Ph.D.Acting Director, Division of Genetic and Molecular Toxicology870-543-7493
Donna L. Mendrick, Ph.D.Director, Division of Systems Biology301-796-8892
Merle G. Paule, Ph.D.Director, Division of Neurotoxicology870-543-7147
Moses W. RobinsonAssociate Director, Executive Programs and Services870-543-7569
Weida Tong, Ph.D.Director, Division of Bioinformatics and Biostatistics870-543-7142


Senior Staff

William Slikker, Jr., Ph.D.Director, NCTR870-543-7517
Thomas J. Flammang, Ph.D.Senior Advisor for Science870-543-7291
Douglas F. SmallActing Executive Officer301-796-8418
Paul C. Howard, Ph.D.Associate Director, Office of Scientific Coordination870-543-7672
Tucker A. Patterson, Ph.D.Associate Director, Regulatory Compliance and Risk Management870-543-7427
Charlotte M. AshcraftDeputy Associate Director, Office of Management870-543-7391
Margaret A. Miller, Ph.D.Associate Director, Regulatory Activities301-796-8890
Jeanne AnsonIntermittent Senior Advisor870-543-7237
Thomas D. PowersCommunications Officer870-543-7264