My work

What I study?

I have worked extensively with modeling complex multilevel data to study a wide range of psychosocial, psychiatric, and substance use-related research questions in both large epidemiological surveys and administrative records. Below are selected research papers on a range of topics, including the health effects of prescription drug monitoring programs (PDMPs), cannabis legalization, diversity and inclusion, and military mental health. 

For a full list of my scientific publications, download my CV or visit my Google Scholar page


Prescription drug monitoring programs (PDMP) have been advanced as a critical component of addressing the US drug poisoning crisis. My research has found little evidence PDMPs reduce drug poisonings, and potentially unintended increases in heroin poisonings.

Patients, Privacy, and PDMPs: Exploring the Impact of Prescription Drug Monitoring Programs

My research on the health effects of PDMPs include:

  1. Association Between Prescription Drug Monitoring Programs and Nonfatal and Fatal Drug Overdoses: A Systematic Review. Ann Intern Med2018 Jun 5;168(11):783-790doi: 10.7326/M17-3074.
  2. Prescription Drug Monitoring Programs and Prescription Opioid-Related Outcomes in the United States. Epidemiol Rev2020 Apr 3;doi: 10.1093/epirev/mxaa002.
  3. A typology of prescription drug monitoring programs: a latent transition analysis of the evolution of programs from 1999 to 2016. Addiction2019 Feb;114(2):248-258doi: 10.1111/add.14440. 
  4. Prescription Drug Monitoring Programs and Opioid Overdoses: Exploring Sources of Heterogeneity. Epidemiology2019 Mar;30(2):212-220doi: 10.1097/EDE.0000000000000950. 
  5. Prescription drug monitoring programs operational characteristics and fatal heroin poisoning. Int J Drug Policy2019 Dec;74:174-180doi: 10.1016/j.drugpo.2019.10.001.
  6. Measuring Relationships Between Proactive Reporting State-level Prescription Drug Monitoring Programs and County-level Fatal Prescription Opioid Overdoses. Epidemiology2020 Jan;31(1):32-42doi: 10.1097/EDE.0000000000001123
  7. Promoting Prescription Drug Monitoring for Population Health: Research and Policy implications. In The Prescription Drug Abuse Epidemic: Incidence, Treatment, Prevention, and Policy. eds. Schepis T: ABC-CLIO. 2018.


Since 1996, 34 states have passed medical cannabis laws,, and since 2012, 11 states have passed recreational cannabis laws. While potential benefits of these laws exist, more research is needed to identify and mitigate unintended harms


I’ve worked extensively with military populations, including both active duty (US Army, Navy, and Marine Corp), National Guard (Ohio National Guard), and Veterans. Below is a sample of this work

Diversity and Inclusion

In the Summer of 2018, we conducted a web-based survey of members of the Society for Epidemiologic Research (SER) to assess perceptions of diversity and inclusion within the society. We found that women and persons of specific racial/ethnic minority or minority religious affiliations were less likely to participate in events initiated by the Society. These data represent a baseline for assessing trends and the impact of future initiatives aimed a improving diversity, inclusion, representation, and participation within SER.

For a full list of my scientific publications, download my CV or visit my Google Scholar page