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Organization Chart for the Center for Public Health and Environmental Assessment (CPHEA)

Organization chart showing divisions and branches within EPA’s Center for Public Health & Environmental AssessmentView full size organization chart graphic.

Office of the Director

Director: Wayne Cascio
Deputy Director: Kay Holt
Associate Director for Ecology and Health: Jamie Strong
Associate Director for Assessment Science: Samantha Jones

About the Center for Public Health and Environmental Assessment


Chemical and Pollutant Assessment Division

Director: Kris Thayer
Associate Director: James Avery

About the Chemical and Pollutant Assessment Division

Quantitative Assessment Branch

Branch Chief: Viktor Morozov

Science Assessment Methods Branch

Branch Chief: Barbara Glenn

Toxic Effects Assessment Branch (Cincinnati)

Branch Chief: Glenn Rice

Toxic Effects Assessment Branch (DC)

Branch Chief: Ravi Subramaniam

Toxic Effects Assessment Branch (RTP)

Branch Chief: Janice Lee


Health and Environmental Effects Assessment Division

Acting Director: Steve Dutton
Acting Associate Director: Emily Snyder

About the Health and Environmental Effects Assessment Division

Hazardous Pollutant Assessment & Systems Branch

Branch Chief: Andrew Hotchkiss

Integrated Environmental Assessment Branch (DC)

Branch Chief: Britta Bierwagen

Integrated Environmental Assessment Branch (RTP)

Branch Chief: Chris Weaver

Integrated Health Assessment Branch

Branch Chief: Jane Ellen Simmons

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Public Health and Integrated Toxicology Division​

Director: David Diaz Sanchez
Acting Associate Director: Bill Russo

About the Public Health and Integrated Toxicology Division

Cardiopulmonary and Immunotoxicology Branch

Branch Chief: Ian Gilmour

Clinical Research Branch

Branch Chief: Ana Rappold

Inhalation Toxicology Facilities Branch

Branch Chief: Mark Higuchi

Reproductive and Developmental Toxicology Branch

Acting Branch Chief: Erin Hines

Neurological and Endocrine Toxicology Branch

Branch Chief: Tammy Stoker

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Pacific Ecological Systems Division

Director: Alan Thornhill

About the Pacific Ecological Systems Division

Ecology Effects Branch

Acting Branch Chief: Jim Markwiese

Freshwater Ecology Branch

Branch Chief: Paul Ringold

Pacific Coast Ecology Branch

Branch Chief: Ted Dewitt

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Public Health and Environmental Systems Division

Director: Lisa Baxter
Associate Director: Timothy Wade

About the Public Health and Environmental Systems Division

Epidemiology Branch

Branch Chief: Danelle Lobdell

Environmental Pathways Modeling Branch

Branch Chief: Megan Mehaffey

Exposure Indicators Branch

Branch Chief: Lindsay Stanek

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