Study Team


Kelly McDonald

Program Manager

Kelly completed a B.Sc. in Psychology from McMaster University and an M.A. in Psychology from the University of Toronto. She worked as a Research Assistant in a neuroimaging lab before joining the Ontario Health Study Science Team in March 2008.
“The opportunity to work on something with this much research potential is invigorating. The Ontario Health Study could improve our prevention and detection tools, which would have a significant impact on health care for all Canadians.”

Matthew Campbell

Research Assistant

Matthew completed an Honours B.Sc. in Biology and Health Studies from the University of Toronto. Prior to joining the Ontario Health Study, Matthew worked as a Research Coordinator at the University Health Network.
"It is truly exhilarating to work alongside like-minded colleagues in the fight to better understand the nature of chronic diseases. It is a privilege to be a part of a research platform that has the potential to positively impact the health outcomes of both our current and future generations."

Chenwei Gao

Senior Data Analyst

Chenwei completed a MPH in Epidemiology from the University of Michigan and a B.Sc. in Life Science from Xiamen University. Prior to joining the Ontario Health Study in February 2015, Chenwei worked as a Biostatistical Analyst at SickKids and as an Appointed Analyst at ICES UofT.
"It’s definitely an exciting opportunity to join the Ontario Health Study. As one of the largest population-based studies in the world fighting against a wide range of chronic diseases, the OHS has the potential to have a great impact on the health of people in Ontario, in Canada, or even around the world."

Mason LeVon

Communications Officer

Mason completed an Honours B.A. in Political Science from the University of Ottawa. Prior to joining the OHS, Mason worked as a Junior Communications Officer at Industry Canada and as a Junior Business Analyst for the Ministry of Children and Youth Services.
“My family, like many in Ontario, has had a high incidence of cancer. To be part of such a large-scale, ambitious study with the potential for breakthroughs in prevention and treatment is very gratifying.”

Tharsiya Nagulesapillai

Data Analyst

Tharsiya completed an Honours B.Sc. in Health Sciences from the University of Toronto and a M.Sc. in Epidemiology from University of Calgary. She has extensive research and analytical experience from academic and public health settings.
“Population-based studies like OHS have the potential to address complex research questions and examine diseases of importance to public health and I am excited to be involved with this innovative study.”

Sally Stasi

Project Lead, Clinical Operations

Sally completed an Honours B.Sc. in Biochemistry and a graduate certification in Clinical Research. She brings many years of experience in biospecimen collection, processing and storage. In her previous position she worked diligently to provide researchers with access to high quality biospecimen derivatives, including DNA and RNA extracted from tissue and peripheral blood specimens, as well as Tissue Microarrays.
"Having worked for a leading cancer research institute for a number of years, I am passionate about clinical research and the role it plays in the development and marketing of therapeutic interventions. While working for a tumour biorepository, I experienced first-hand how invaluable a resource biospecimens, annotated with high quality clinical data, are to researchers. It is with great excitement that I join the OHS, in their second phase of the trial, as they strive to provide researchers with access to high quality biospecimens."

Information Technology

Vali Radoi

Manager, OHS Informatics

Vali completed an Engineering Sciences from the University of Bucharest. He brings to the OHS an extensive background and experience in IT Enterprise Architectures, technologies and operations as well as methodologies and tools. Vali has had various leadership responsibilities throughout his career, being part of IT Enterprise and Solution Architecture teams with leading technology organizations such as Deloitte, Electronic Data Systems, and Hewlett Packard.
"To be part of innovative and targeted research that could translate from the research bench to Canadian communities is a daily professional motivation. The Ontario Health Study is undertaking one of the biggest health challenges of our times and enables the best and brightest minds in the chronic disease research community in ways that have never been possible before."

Michael Abramov

Software Developer

Michael has a Master’s degree in Computer Sciences and has been working as a software developer and infrastructure specialist for more than 20 years. His background includes the design of architecture, software development, and technical support for Java Web applications in various domains including healthcare, financial and telecommunication.
"I am very enthusiastic to bring my knowledge and passion to a study that is capable of providing more information in regards to cancer research."

Igor Koganov

Quality Assurance Technician

Igor completed a Bachelor of Economics and Business at Moscow University of Commerce. He has more than 15 years experience in Information Technology in the field of Quality Assurance.
“I am excited to have an opportunity to work for a non-profit organization and I am very grateful to be able to contribute to such a worthy cause as health research.”


Cindy Gayle

Executive Assistant

Cindy has worked at many large corporations in an EA capacity, including Siemens Canada and Symantec Corporation. Prior to joining the Ontario Health Study, Cindy worked at an architectural interior design firm, supporting the president.
“I lost my Mother to breast cancer in July of 2008 and because of the advanced research available, my sister Tiffany is alive today. I feel extremely privileged to be part of something as impactful as the Ontario Health Study and encourage everyone to do their part by completing the Study.”

Nazanin Khobzi

Community Liaison/Administrative Assistant

Nazanin completed her Hon B.A. in Sociology from the University of Toronto. Nazanin has always had an interest in working for non-profit organizations. Prior to joining the Ontario Health Study in 2013, she worked in both private and public sector organizations.
“I feel very excited to be part of this commendable Study. I feel honoured to serve as a liaison between the OHS and its Study participants, whose participation and enthusiasm play an important role in making a difference in the health of all Ontarians.”