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Contacts in the Office of Pesticide Programs, Antimicrobials Division

The Antimicrobials Division (AD) is responsible for all regulatory activities associated with antimicrobial pesticides and pesticide devices, including product registrations, amendments, and reevaluation (data call-ins, reregistrations, registration review).

On this page:

Name E-Mail Phone Area of Responsibility

Immediate Office: 703-308-6411
Fax: 703-308-6437

Anita Pease 703-305-0392 Division Director
Steve Weiss 703-308-8293 Deputy Director
Diane Isbell 703-308-8154 Ombudsman/Senior Advisor
AD Ombudsman   General registration questions, treated articles
Devices   Devices and Device Determinations

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Risk Assessment & Science Support Branch (RASSB)
Fax: 703-308-6467

Melissa Panger 703-305-6136 Branch Chief
Laura Parsons 703-305-5776 Associate Branch Chief
Timothy Leighton 703-305-7435 Human Exposure, Assessment and Risk Characterization
Tim McMahon 703-308-6342 Senior Scientist Toxicology, Risk Assessments
Judy Facey 703-305-5450 Risk Assessment Process Leader (Human Health)
Diana Hsieh 703-347-0296 Risk Assessment Process Leader (Eco)

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Product Science Branch
Fax: 703-308-6467

Kristen Willis 703-347-0515 Branch Chief
Tajah Blackburn 703-347-0260 Senior Scientist for Efficacy Evaluation Team
Karen P. Hicks 703-308-8417 Team Leader Toxicology/ Chemistry Team Product Chemistry and Acute Toxicology Review
Tina Pham 703-308-0125 Team Leader for Efficacy Evaluation Team
Jenny Tao 703-305-7565 Acute Toxicology Questions
Efficacy questions    

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Regulatory Management Branch I 
Fax: 703-308-6467

John Hebert 703-308-6249 Branch Chief
Kathryn Montague 703-305-1243 Senior Regulatory Advisor
Eric Miederhoff 703-347-8028 Team Leader PM Team 31: Quaternary Ammonium Compounds, Ethylene Oxide, Antifoulants, Copper
Demson Fuller 703-308-8062 Team Leader PM Team 32 Sodium and Calcium Hypochlorite, Iodine, Bromine and Water Purifiers
Joseph Varco 202-564-1791 Team Leader PM Team 33 Silver, Peroxy and Zinc compounds, MBT, Nabam, Gluteraldehyde, Isothio zoline-ones, Formaldehyde

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Regulatory Management Branch II
Fax: 703-308-8481

Rose Kyprianou 703-305-5354 Branch Chief
Jacqueline Hardy 703-308-6416 Team Leader PM Team 34 Wood preservatives, Phenolic Compounds, Pine Oils, Design for the Environment
Richard Fehir 703-347-8101 Team Leader PM Team 36, Registration review, Reregistration, and Data Call-Ins
Jose Gayoso 703-347-8652 Senior Regulatory Advisor

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