Scientists & Staff | National Institute of Environmental Health Sciences Skip Navigation Scientists & Staff Close the left navigation Add Epidemiology Branch Table of Contents Chief Deputy Chief Scientific Program Support Team Chronic Disease Epidemiology Group Environment & Cancer Epidemiology Group Environmental & Social Determinants of Health Group Fertility & Reproductive Health Group Perinatal & Early Life Epidemiology Group Scientists Emeriti and Special Volunteers (Retired) Secondary Appointments Chief Dale P. Sandler, Ph.D. Chief, Epidemiology Branch and Senior Investigator Tel 984-287-3711 [email protected] Deputy Chief Kelly K. Ferguson, Ph.D., M.P.H. Deputy Chief and Senior Investigator Tel 984-287-3700 [email protected] Scientific Program Support Team Diana F. Burks-Robinson Administrative Technician Tel 984-287-4080 [email protected] Edward L. Mosley Jr Administrative Specialist Tel 984-287-3709 [email protected] Gitanjali S. Taneja, Ph.D. Health Science Administrator Tel 984-439-4428 [email protected] Chronic Disease Epidemiology Group Dale P. Sandler, Ph.D. Chief, Epidemiology Branch and Senior Investigator Tel 984-287-3711 [email protected] Dazhe Chen Fellow - IRTA Postdoctoral (Visiting) Tel 984-287-3711 [email protected] Hanna V. Jardel Special Volunteer Tel 984-287-3511 [email protected] Hazel B. Nichols Special Volunteer Tel 410-487-3458 [email protected] Katie M. O'Brien, Ph.D. Staff Scientist Tel 984-365-9283 [email protected] Oluwafolakemi I. Ogunsina Fellow - IRTA Postdoctoral Tel 205-862-2695 [email protected] Yong-Moon Mark M. Park Special Volunteer Tel 501-526-6186 [email protected] Christine G. Parks, Ph.D., M.S.P.H. Staff Scientist Tel 984-287-3723 [email protected] Opal P. Patel Special Volunteer Tel 919-434-4454 [email protected] Emily J. Werder Special Volunteer Tel 248-834-5675 [email protected] Jennifer M. Woo, Ph.D., M.P.H. Fellow - IRTA Postdoctoral Tel 984-287-3725 [email protected] Environment & Cancer Epidemiology Group Alexandra J. White, Ph.D., M.S.P.H. Stadtman Investigator Tel 984-287-3713 [email protected] Che Jung Chang, Ph.D. Special Volunteer Tel 240-319-7387 [email protected] Meklit Daniel, M.Phil. NIH OXCam Fellow Tel 984-287-3713 [email protected] Jennifer L. Ish, Ph.D. Fellow - IRTA Postdoctoral Tel 984-287-3752 [email protected] Katherine N. Pullella, Ph.D. Fellow - Visiting Tel 984-287-4128 [email protected] Marina R. Sweeney Special Volunteer Tel 919-287-4319 [email protected] Environmental & Social Determinants of Health Group Chandra L. Jackson, Ph.D., M.S. Stadtman Investigator Tel 984-287-3701 [email protected] Symielle A. Gaston Harrison, Ph.D., M.P.H. Staff Scientist Tel 984-287-3724 [email protected] Rupsha Singh Fellow - IRTA Postdoctoral Tel 984-287-3701 [email protected] Wensu Zhou, Ph.D., M.S. Fellow - IRTA Postdoctoral Tel 984-287-3701 [email protected] Kennedy D. Williams Fellow - IRTA Postdoctoral Tel 984-287-4256 [email protected] Fertility & Reproductive Health Group Anne Marie Z. Jukic, Ph.D. Investigator Tel 984-287-3699 [email protected] Ky'Era V. Actkins, Ph.D. Fellow - IRTA Postdoctoral Tel 910-670-0475 [email protected] Maryam A. Aziz Volunteer Tel 203-947-2836 [email protected] Ginna L. Doss, Ph.D. Fellow - IRTA Postdoctoral Tel 984-287-4483 [email protected] Quaker E. Harmon, M.D., Ph.D. Staff Scientist Tel 984-287-3747 [email protected] Michelle R. Klawans, Ph.D. Fellow - IRTA Postdoctoral Tel 984-287-4685 [email protected] Christine R. Langton, Ph.D. Special Volunteer Tel 984-287-3690 [email protected] Ana K. Rosen Vollmar Volunteer Tel 203-915-8524 [email protected] Perinatal & Early Life Epidemiology Group Kelly K. Ferguson, Ph.D., M.P.H. Deputy Chief and Senior Investigator Tel 984-287-3700 [email protected] Mikyeong Lee, Ph.D., M.P.H. Staff Scientist Tel 984-287-4650 [email protected] Amir J. Lueth, Ph.D. Fellow - IRTA Postdoctoral Tel 984-287-4631 [email protected] Erin E. McNell Fellow - IRTA Predoctoral Tel 716-425-8927 [email protected] Sarahna A. Moyd, Ph.D. Fellow - IRTA Postdoctoral Tel 984-287-3700 [email protected] Scientists Emeriti and Special Volunteers (Retired) Donna D. Baird, Ph.D. Scientist Emerita Tel 984-287-3690 [email protected] Stephanie J. London, M.D., Dr.P.H. Scientist Emeritus (Secondary Appointment) Tel 984-287-3688 [email protected] Jack A. Taylor, M.D., Ph.D. (Retired) Scientist Emeritus Tel 984-287-3684 [email protected] Allen J. Wilcox, M.D., Ph.D. (Retired) Scientist Emeritus Tel 984-287-3686 [email protected] Walter J. Rogan, M.D. Special Volunteer (Retired) Tel 984-287-3682 [email protected] Secondary Appointments Clarice R. Weinberg, Ph.D. Principal Investigator Tel 984-287-3697 [email protected] Shanshan Zhao, Ph.D. Deputy Chief, Biostatistics & Computational Biology Branch and Principal Investigator Tel 984-287-3702 [email protected] Back to Top Last Reviewed: April 16, 2026