Important members in the research lab

PHSR graduate students work on a variety of research projects that range from pharmacoepidemiologic analysis of automated claims data, incorporating advanced methods and longitudinal analysis, to patient-reported outcomes using discrete choice experiment surveys for utilities assessment, and the analysis of health behaviors related to medication use patterns and treatment adherence.

PHSR Postdoctoral Fellow

  • Wendy Camelo Castillo, MD MSc PhD
    • Trained as a physician at the Universidad Nacional de Colombia, where she also obtained an MSc degree in Physiology. In 2013 she graduated from the PhD program in Epidemiology at the University of North Carolina at Chapel Hill. After a fellowship year in the Geisinger Health System, she joined the Department in August 2014.
    • Throughout her doctoral and postdoctoral training she has focused on the implementation of methods in pharmacoepidemiology and design of comparative effectiveness studies of medical treatments, with extensive experience working with large administrative databases and electronic health records.
    • Her primary research interests focus on the use and development of quantitative and qualitative methodologies for comparative effectiveness and patient centered research, specifically when assessing medical interventions in vulnerable populations. Her current work aims at understanding caregiver’s preferences and priorities when assessing treatments for children with complex mental health needs and assessing patterns of psychotropic medication use prior to initiation of antipsychotics in foster care youth.

PHSR Graduate Students

  • Xinyi Ng, BSc (Pharm)
    • Trained as a pharmacist in Singapore with experience as a research coordinator overseeing participant recruitment, data collection,  and statistical analyses (STATA, SAS).
    • Primary research interests lie in the areas of patient reported outcomes and preference elicitation.
    • Current research activities involve development and administration of a discrete choice experiment using a Best-Worst Scale survey for preference elicitation and utilities assessment for treatment.


  • Melissa Ross, BS, MA
    • Trained in medical sociology with a master’s degree in Applied Sociology and research experience as project coordinator, participant recruitment, data collection and grant writing.
    • Primary research interests lie in the areas of health behaviors and medicalization.
    • Current research activities involve administration of a discrete choice experiment survey and quantitative analysis of caregivers’ beliefs regarding ADHD medication.


  • Ming-Hui ‘Mindy’ Tai, BS (Pharm), MS, M.HPA
    • Trained as a pharmacist in Taiwan with a masters degree in Health Policy and Administration and research experience in large claims data management and analysis (SAS).
    • Primary research interests are mental health-related drug utilization and outcomes.
    • Current research activities involve analysis of antipsychotic and other psychotropic medication use among youth in foster care; evaluation of the integration of mental health services in pediatric primary care on child  mental health outcomes.