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Scientists & Staff

Toxicology Branch

Paul M. Foster, Ph.D. Paul M. Foster, Ph.D.
Acting Chief, Toxicology Branch
Deputy Director, NTP Center for the Evaluation of Risks to Human Reproduction

Tel (919) 541-2513

Rajendra S. Chhabra, Ph.D. Rajendra S. Chhabra, Ph.D., D.A.B.T.
Group Leader, General Toxicology, NTP, DIR

Tel (919) 541-3386

Charles Alden, Ph.D. Charles Alden, Ph.D.
Technical Writer/Editor

Tel (919) 541-5722

Bonnie Allen Bonnie Allen
Administrative Specialist

Tel (919) 541-3449

Not Pictured Scott Auerbach, Ph.D.
IRTA Fellow

Tel (919) 541-4505

Jack Bishop, Ph.D. Jack Bishop, Ph.D.

Tel (919) 541-1876

Chad Blystone Chad Blystone, Ph.D.
IRTA Fellow

Tel (919) 541-2741

Not Pictured Bill Caspary, Ph.D.

Tel (919) 541-2150

Po C. Chan, Ph.D. Po C. Chan, Ph.D.

Tel (919) 541-7561

June K. Dunnick, Ph.D. June K. Dunnick, Ph.D.

Tel (919) 541-4811

Not Pictured Rachel Frawley

Tel (919) 541-2151

Dori Germolec, Ph.D. Dori Germolec, Ph.D.

Tel (919) 541-3230

Michelle J. Hooth, Ph.D. Michelle J. Hooth, Ph.D.

Tel (919) 316-4643

Richard D. Irwin, Ph.D. Richard D. Irwin, Ph.D.

Tel (919) 541-3340

Ron Melnick, Ph.D. Ron Melnick, Ph.D.

Tel (919) 541-4142

Not Pictured Retha Newbold, M.S., CT (ASCP)
Staff Scientist/ Developmental Biologist

Tel (919) 541-0738

Matt Stout, Ph.D. Matt Stout, Ph.D.
IRTA Fellow

Tel (919) 541-3489

Kristine Witt, M.Sc Kristine Witt, M.Sc

Tel (919) 541-2761

Michael E. Wyde, Ph.D., D.A.B.T. Michael E. Wyde, Ph.D., D.A.B.T.

Tel (919) 316-4640

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