David Timberlake

David Timberlake is an Associate Professor in the Department of Population Health and Disease Prevention at the University of California, Irvine. He holds a Ph.D. from the University of California, San Diego, and maintains active research collaborations with California's Tobacco-Related Disease Research Program (TRDRP) and Department of Cannabis Control. His work focuses on substance use policy, regulatory impacts, and public health interventions.

Research Interests: Dr. Timberlake's expertise spans epidemiology, marketing, and policy analysis for tobacco, cannabis, and emerging substances. Key areas include harm reduction strategies (e.g., snus, e-cigarettes), co-use behaviors (blunts), flavor bans, and international tobacco endgame frameworks. His research employs spatial analysis, retail sales data, and behavioral surveys to assess policy effectiveness and market dynamics.

Publication Trends: Recent articles emphasize policy implementation, retail marketing surveillance, and behavioral responses to regulations. Predominant themes include cannabis sales patterns post-COVID-19, flavored tobacco restrictions, and social media's role in substance promotion. Over 70% of publications from 2020-2025 analyze regulatory impacts using mixed-methods approaches.

Honors and Awards:

• Fulbright Scholar, University of Tampere, Finland (2017-2018)

Grants and Advising: Currently funded by California's TRDRP and Department of Cannabis Control for studies on tobacco-cannabis co-use and retail policy enforcement. No formal student advising roles are documented.