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HEI Staff
Directory of HEI staff. Click on a person's name for contact information.

Daniel S. Greenbaum
President

Robert O’Keefe
Vice President
Ellen K. Mantus
Director of Science

Donna J. Vorhees
HEI Energy CEO and Vice President

Annemoon M. van Erp
Deputy Director of Science

Thomas J. Champoux
Director of Science Communications

Jacqueline C. Rutledge
Director of Finance and Administration

Jason Desmond
Deputy Director of Finance and Administration

Emily Alden
Corporate Secretary

Amy Andreini
Science Communications Specialist

Ayusha Ariana
Research Assistant

Palak Balyan
Consulting Staff Scientist

Hanna Boogaard
Consulting Principal Scientist
Aaron J. Cohen
Consulting Principal Scientist

Dan Crouse
Senior Scientist

Robert M. Davidson
Staff Accountant

Philip J. DeMarco
Compliance Manager

Kristin C. Eckles
Senior Editorial Manager

Elise G. Elliott
Staff Scientist

Hope Green
Editorial Project Manager

Lissa McBurney
Senior Science Administrator

Janet McGovern
Executive Assistant

Victor Nthusi
Consulting Research Fellow

Pallavi Pant
Head of Global Health

Allison P. Patton
Senior Scientist

Quoc Pham
Science Administrative Assistant

Anna Rosofsky
Senior Scientist

Robert Shavers
Operations Manager

Eva Tanner
Staff Scientist

Alexis Vaskas
Digital Communications Manager

Ada Wright
Research Assistant