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Dr. Richard Birtwhistle, MD, MSc, CCFP, FCFP   

Chair, CPCSSN Committee

Dr. Richard Birtwhistle is the principal investigator and Chair for CPCSSN. He is a family physician and clinical epidemiologist, and continues to practice family medicine. He is a Professor and Director of the Centre for Studies in Primary Care at Queen’s University. Dr. Birtwhistle received the Researcher of the Year award in 2010 by the College of Family Physicians of Canada in recognition of the successes of CPCSSN.

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Marissa Beckles   

Administrative Assistant Chair’s Office

Marissa joined the CSPC in 2014 bringing a wide variety of knowledge and experience in office administration and organization. In her role as Administrative Assistant, she provides support for all members of the CSPC and also the CPCSSN project.



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Ken Martin   

Information & Technology Manager
Ken is the Information & Technology Manager for CPCSSN. He is responsible for the collection of EMR data from regional offices, supervising regional Data Managers, managing relationships with EMR vendors, and developing processes for the extraction, cleaning and uploading of EMR data into the central data repository as well as query/reporting tools. He has a BSc in Computer Science & Mathematics from Acadia University and a MSc in Computing & Information Science from Queen’s University.


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Shahriar Khan   

Senior Data Analyst
Shahriar joined CPCSSN as Senior Data Analyst in 2010. He brings more than 15 years of experience in analyzing large volume of health and social science data where he applies appropriate statistical tools and techniques especially from a research perspective, interprets and presents results and coauthors reports both for the project and peer-reviewed journals. Shahriar has a Master degree in Demography from the Australian National University, Canberra, Australia and a Bachelor (Honours) and Master degree in Statistics from University of Dhaka, Bangladesh.


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John Queenan, PhD (Clinical Epidemiology)   

Senior Epidemiologist

John Queenan is the Senior Epidemiologist for CPCSSN. John co-chairs the CPCSSN research committee with Dr. Walter Rosser. John received his graduate training in the Department of Population Health Sciences at Queen’s University, Kingston. His research interests focus on the psychosocial and clinical determinants of chronic disease in Canada.