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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

Deputy Division Directors

Kristina Thayer, Ph.D.
Kris Thayer, Ph.D.
Deputy Division Director for Analysis

Tel (919) 541-5021
Fax (919) 541-1994
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
Mary S. Wolfe, Ph.D.
Mary S. Wolfe, Ph.D.
Deputy Division Director for Policy

Tel (919) 541-7539
Fax (301) 451-5759

Scientific and Support Staff

Rajendra S. Chhabra, BVSc., Ph.D., D.A.B.T.
Raj Chhabra, B.V.Sc., Ph.D.
Special Volunteer – Postdoctoral Training Program Coordinator

Tel (919) 541-3386
Fax (919) 541-3647
Sharon K. Nichols
Sharon K. Nichols
Intramural Program Specialist

Tel (919) 541-7992

Toxicology Liaison

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

Tel (301) 496-3511

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