Research Staff

Laura Andrich
Research Assistant II


Research Associate

Raina Croff, PhD
Senior Research Associate

Daren Ford, LCSW, CADC II
Research Associate

Kimberly (Kim) Hoffman, PhD
Senior Research Associate


Research Associate


Research Associate

Amy Laird, PhD
Senior Research Associate

Rana Leed
Research Associate

Jeong Youn Lim, PhD
Research Associate


Research Associate

Jean O'Malley
Research Associate

Marie Payment
Research Assistant II

Amy Palma
Study Coordinator

Katrina Ramsey, MPH
Staff Biostatistician

Briana Rossi
Research Assistant I

Michelle Singer
Senior Research Assistant

Wesley Stoller, MA
Research Coordinator

Ashley Thomas
Research Assistant II

Carrie Tillotson
Research Associate

Jennifer Verbeck
Senior Research Assistant

Joanne Weidemann, CCRP
Research Associate

Jack Wiedrick, MS
Staff Biostatistician

Tosha Zaback
Research Associate

Zhenzhen Zhang, PhD, MD, MPH
Postdoctoral Researcher