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Director of Epidemiology


Laura Cassidy, MS, PhD

Professor and Director, Division of Epidemiology
Research Director, Institute for Health & Equity
Director, PhD Program in Public & Community Health
Hedwig van Ameringen Executive Leadership in Academic Medicine® (ELAM)
Director, Surgical, Clinical, and Outcomes Research

Download Dr. Cassidy's CV | Contact Dr. Cassidy | Read Dr. Cassidy's Bio

Faculty Members

Division of Epidemiology


Kirsten Beyer, PhD, MPH, MS

Assistant Professor, Division of Epidemiology; Associate Director, PhD Program in Public & Community Health; Adjunct Assistant Professor, Geography, UW-Milwaukee


(414) 955-7530


Sandra Bogar, PhD

Instructor, Division of Epidemiology


(414) 955-8218


Matthew Dellinger, PhD

Assistant Professor, Division of Epidemiology


(414) 955-4954


Jamila Kwarteng, PhD

Instructor, Division of Epidemiology


(414) 955-4163


Mallory O'Brien, PhD

Assistant Professor, Division of Epidemiology


(414) 955-8028

Staff Members

Renee Hill, MPH


Division Manager of Epidemiology

Renee joined MCW in January of 2011. She began as a Program Coordinator working for both the PhD Program in Public and Community Heath and Master of Public Health Program. She became the Program Manager for the Division of Epidemiology and PhD Program in Public and Community Health in July of 2015. Renee attended UW-Madison for her undergraduate degrees in Spanish and International Studies. She attended George Washington University and studied Global Health for her Master of Public Health degree. Renee oversees the day to day management of the PhD Program and Division of Epidemiology and works closely with the Program Director. She maintains the budgets and grants for both divisions. She enjoys working with a variety of faculty, staff and students. Watching the students grow as independent researchers is very rewarding. In her free time Renee loves to travel the world, explore Wisconsin and is a die-hard Badger fan.

contact renee

Catherine Carter, MPH
Thomas Chelius, MS


Biostatistician, Division of Epidemiology

After completing his Masters of Science degree in Mathematics, Tom came to MCW in 1993 to pursue another MS degree in Biostatistics. During his training, he met Dr. Jane Kotchen who later hired him fulltime in 1995. He initially worked as a data coordinator for the local clinic of the Women’s Health Initiative, while also working on various projects looking at hypertension in African-Americans. Later he coordinated the Clinical Research Scholars program which mentored junior faculty who were interested in launching their research careers. Tom now coordinates the Epidemiology Data Resource Center and collaborates on a number of research projects. Outside of work, Tom likes to go on adventures in his MINI Cooper and leads a multiple myeloma survivor support group.

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Branden Dupont


Data Analyst, Division of Epidemiology

Branden DuPont is a data analyst at the Medical College of Wisconsin. His work revolves around using data and analytics to address social problems with a focus on public safety as well as criminal and civil justice policy. Branden holds a bachelor degree in Political Science from the University of Wisconsin Milwaukee. He has also finished an Executive Program in Applied Data Analytics offered collaboratively between the University of Chicago, the University of Maryland, and New York University (NYU). A couple completed projects while at MCW include developing an automated method to conduct recidivism analysis and creating an interactive, parcel-based map dashboard identifying problem properties in the City of Milwaukee.

He resides in Bayview, Milwaukee and more often than not bikes to work — even during the harsh and unforgiving Wisconsin winters.

contact Branden

Lindsay Emer, PhD


Program Manager, Division of Epidemiology

Dr. Lindsay Emer is a Program Manager with the Institute for Health & Equity at the Medical College of Wisconsin. In her role, she provides training and technical assistance for Sexual Assault Reviews (Department of Justice grant) and Opioid Overdose Death Reviews (Center for Disease Control and Prevention grant) across Wisconsin. Dr. Emer has a PhD in Public Health and has worked as a researcher in HIV/AIDS, substance abuse, sexual assault and firearm violence. Before joining MCW, she facilitated the Milwaukee Sexual Assault Review and Milwaukee Domestic Violence Review for Aurora Health Care in partnership with the Milwaukee Homicide Review Commission. Before entering graduate school, she worked in the community for six years at the AIDS Resource Center of Wisconsin and Meta House, a substance abuse treatment center for women.

contact Dr. Emer

Charissa Fritzen-Pedicini MPH
Lan Jiang


Data Analyst, Division of Epidemiology

Lan joined MCW in June of 2017 as a Database Analyst. Her responsibility is supporting DataShare, an integrated data system that includes a cross-sector variety of data comprised of public safety, public health and education. She has extensive knowledge to design and build the data model; perform Extract, Transform and Load process; maintain data integrity by monitoring system security and access, and develop back-up strategies and research.

Lan holds a Master's Degree in Urban and Regional planning with concentrations in Data Analysis from Temple University.

At her free time, she enjoys traveling with her two little kids and husband.

contact Lan

Jessica Ohlrich
Sima Namin

Postdoctoral Fellow, Division of Epidemiology

Sima is an urban planner by education and an interdisciplinary researcher. She joined MCW as a postdoctoral fellow in November 2017. She received her PhD in Urban Planning and public Policy in 2016 from the University of Texas at Arlington. Her research interests center on environmental justice and the political ecology of health with a focus on patterns of cancer incidence, mortality, and survival. She has a strong interest in the role of built environment characteristics, environmental exposures, and coping capacities that contribute to patterns of health disparities in vulnerable communities. She currently works with Dr. Kirsten Beyer’s research team.

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Yuhong Zhou, PhD, MS, ME


Postdoctoral Fellow, Division of Epidemiology

Yuhong Zhou, PhD, MS, ME, is currently a postdoctoral fellow in the Institute for Health & Equity. Her research interests lie at the intersection of geographic information science (GISc), geography, planning and public health. She currently focuses on three lines of research: social, spatial/environmental, and behavioral determinants of health outcomes and disparities, physical access to health-related facilities (such as pharmacy and hospital) and built-environment elements (such as parks and green space), and the effect of institutional racism on cancer outcomes.

contact Dr. Zhou