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Center Staff

Erik Groessl, PhD 

Executive Director

Andrew Sarkin, PhD

Director of Evaluation Research

Steve Tally, PhD

Senior Project Manager

​​Alfredo (Freddy) Arriola, BA

Field Researcher


​​Trinell Brashear

Programmer / Analyst


Danielle Casteel, MA

Program Evaluation Specialist


​Kim Center, MA

Program Evaluation Specialist

Kyle Choi, MPH

Informatics Project Coordinator

​Helen Chong, MPH

Field Researcher

Maria Dyer, BA
Administrative Assistant
Marlin Hart
Survey Research Assistant

​​Richard Heller, MA
Community Health Program Representative

Rahil Hernandez, BS

Research Associate 

Naomi Hillery, MPH 

Project Manager

Field Researcher

​Louielyn Lirio, MPH

Program Evaluation Specialist

Symone McKinnon, MA

Program Evaluation Specialist

Programmer / Analyst

Gina Misch, MA, MPA

Project Manager

Calvin Navarro, MS

Programmer/ Analyst

Senior Evaluation Research Associate


Jorge Perez, BA

Programmer / Analyst

Alexandra Resari, MA 

Program Evaluation Specialist

Frances Reyes Yee, MA

Senior Evaluation Research Associate

Andow Rodriguez

System Administrator

Katie Rule, MPH, MSW

Program Evaluation Specialist

Survey Worker​

Nisha Sanghvi, MPH

Program Evaluation Specialist

​​​​Vivianne Silva, BS

Survey Research Assistant

Me Young Song, BS

Survey Research Assistant

​Edith Wilson, PhD

Senior Evaluation Research Associate

Zhun Xu, PhD

Programmer / Analyst 

​Amanda Moran, MPH

Program Evaluation Specialist

Merissa Kado, MPH

Program Evaluation Specialist


Anah Esquerio, BS

​Intern Research Assistant