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Your Environment. Your Health.

Scientists & Staff

National Toxicology Program Division - Associate Director's Office

Associate Director

John R. Bucher, Ph.D.
John R. Bucher, Ph.D.
Associate Director, National Toxicology Program

Tel 919-541-4532
Fax 919-541-4255
bucher@niehs.nih.gov

Deputy Division Directors

Nigel J. Walker, Ph.D., D.A.B.T.
Nigel J. Walker, Ph.D.
Deputy Division Director for Research

Tel 919-541-4893
Fax 301-451-5596
walker3@niehs.nih.gov
Mary S. Wolfe, Ph.D.
Mary S. Wolfe, Ph.D.
Deputy Division Director for Policy

Tel 919-541-7539
Fax 301-451-5759
wolfe@niehs.nih.gov

Scientific and Support Staff

Sharon K. Nichols
Sharon K. Nichols
Intramural Program Specialist

Tel 919-541-7992
nicholss2@niehs.nih.gov

Toxicology Liaison

Christopher Weis, Ph.D., D.A.B.T.
Christopher P. Weis, Ph.D.
Toxicology Liaison

Tel 301-496-3511
christopher.weis@nih.gov