Wouter Vermeer is a research assistant professor at the Feinberg School of Medicine at Northwestern University in the Department of Psychology and Behavioral Sciences. He is affiliated with CE-PIM, the Center for Prevention Implementation Methodology, NICO, the Northwestern Institute of Complex Systems, and the CCL, Center for Connected Learning and Computer-Based Modeling. He is a methodologist specializing in network and agent-based simulation modeling by training. His work centers around leveraging simulation modeling to support decision-making, specifically in the context of HIV prevention and opioid death reduction.