An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Contacts in the Office of Pesticide Programs, Health Effects Division

HED is responsible for reviewing and validating data on properties and effects of pesticides, as well as, characterizing and assessing exposure and risks to humans and domestic animals.

On this page:

Name E-Mail Phone Area of Responsibility

Immediate Office
Fax: 703-305-5147

Dana Vogel 703-305-0874 Director
Gregory Akerman 703-305-0116 Acting Associate Director
Donald Wilbur 703-347-8894 Deputy Director
Elizabeth Mendez 703-305-5453 Senior Scientist, Biologist
Cecilia Tan 919-541-2542 Senior Scientist, Toxicologist
Risk Assessment Branch I
Chris Olinger 703-305-5406 Branch Chief
Risk Assessment Branch II
Christina Swartz 703-305-5877 Branch Chief
Risk Assessment Branch III
Tom Moriarty 703-305-5035 Branch Chief
Risk Assessment Branch IV
Shalu Shelat 703-347-8660 Branch Chief
Risk Assessment Branch V
Michael Metzger 703-305-5883 Acting Branch Chief
Risk Assessment Branch VI
Julie Van Alstine 703-603-8866 Branch Chief
Risk Assessment Branch VII
Michael Metzger 703-305-5883
Branch Chief
Chemistry and Exposure Branch
David J. Miller 703-305-5352 Branch Chief
Science Information Management Branch
Richard Fehir 703-347-8101 Acting Branch Chief