Petros Pechlivanoglou, PhD, is a senior Scientist at The Hospital for Sick Children’s Research Institute and an Associate Professor at the University of Toronto’s Institute of Health Policy, Management and Evaluation. After studying economics in his native Greece, he received both a Master’s in econometrics and a PhD in health econometrics from the University of Groningen. His research interests include: the use of health decision analysis in economic evaluation; bridging evidence synthesis, administrative data and decision analysis; and the application and extension of predictive models in health economics. In his spare time, he enjoys playing and performing traditional Greek music and explaining to people how to pronounce his last name.
Alex Moskalewicz, Research Analyst
Alexandra Moskalewicz is a Research Analyst, supporting pediatric oncology-related projects. She holds a Master of Science in Health Services Research from the University of Toronto. For her Masters thesis she used microsimulation modeling to project the prevalence of childhood cancer in Ontario across future decades. Prior to her MSc. she completed a Bachelor of Science in Health Studies at the University of Waterloo and gained experience through Waterloo’s co-operative education program as a clinical research assistant in the oncology departments at St. Michael’s Hospital and Sunnybrook Health Sciences Centre. Outside of work Alex loves to cook, travel and play with her two cats.
Jasper Zhang, Research Analyst
Jasper Zhang holds a Master’s of Science in Biostatistics from the University of Toronto. He completed his undergraduate studies at the University of Waterloo with an Honours Bachelor of Mathematics degree in Computer Science and Statistics. He is currently working as a Research Analyst at the Hospital for Sick Children focusing on COVID-19 related projects, including predictive models and simulations. He worked at the Biostatistics Department at Princess Margaret Cancer Centre on his master’s thesis on cancer genomics survival predictions during his graduate studies. He is a tenor in the UofT allegro choir in his spare time. He enjoys playing soccer, and badminton, cooking fusion cuisines and reading interesting papers.
Chaoran Dong, PhD Candidate
Chaoran Dong is a PhD student in Health Services Research (Health Technology Assessment Emphasis) at the Institute of Health Policy, Management, and Evaluation. Her research interests primarily focus on economic evaluations in serving vulnerable populations, particularly with respect to priority setting and resource allocation in the healthcare system. Chaoran’s work involves diverse topics such as tuberculosis case finding, cancer screening, and long-term care. She previously earned her bachelor’s degree in Health Service Administration at Fudan University and her Master of Science in Public health at Johns Hopkins University. In her spare time, Chaoran enjoys baking, playing video games, and coffee hopping.
Olivia Adair, PhD
Olivia Adair is currently a postdoctoral fellow at the Hospital for Sick Children (SickKids) in Toronto. She completed her PhD in Statistics at Queen’s University Belfast (QUB) in June 2025, where she developed a decision model to evaluate bowel cancer screening strategies. She also completed her MSc in Mathematics and Statistics & Operational Research at QUB in July 2021. Her current research investigates how drug-pricing fluctuations impact value-of-information methods. Outside of work, she enjoys long walks, Pilates, and reading.
Giancarlo Di Guiseppe, PhD
Giancarlo Di Giuseppe earned his MPH and PhD in epidemiology from the Dalla Lana School of Public Health at the University of Toronto. Dr. Di Giuseppe’s dissertation focused on understanding the economic consequences and financial toxicities of cancer in adolescents and young adults. He recently joined the Hospital for Sick Children as a postdoctoral research fellow. Dr. Di Giuseppe’s research uses population-based administrative data to evaluate the longitudinal socioeconomic impact of cancer on patients and their families. He is also interested in applying causal inference methods to health technology assessment, in order to inform individual- and policy-level interventions that reduce the financial hardship experienced by cancer survivors.
Zachary Dionisopoulos, PhD Student
Zachary Dionisopoulos is a general pediatrician and hospitalist at CHU Sainte-Justine in Montréal, QC. He is currently a PhD student in the Clinical Epidemiology and Health Care Research (CEHCR) program at the Institute for Health Policy, Management, and Evaluation (IHPME) at University of Toronto. His research interests lies in using linked administrative data and causal inference/simulation methods to answer questions about the clinical and socioeconomic outcomes of childhood illness.
