Reed Siemieniuk


Dr. Reed Siemieniuk is an Assistant Professor in the Department of Health Research Methods, Evidence, and Impact, McMaster University. He is a hospital-based general internist, working at Hamilton Health Sciences. He is a co-founder of the BMJ Rapid Recommendations series, which produces rapid and trustworthy clinical practice guidelines. He is collaborating with the World Health Organization to produce living guidelines for treatment of COVID-19. He has authored more than 120 peer reviewed publications.

Areas of Research Interest

Dr. Siemieniuk is interested in methods for development of evidence synthesis and guideline development. He is particularly interested in evidence synthesis for common infections.


Dr. Siemieniuk obtained his BSc at the University of Waterloo (2009), his medical degree at McMaster University (2012). Dr. Siemieniuk completed his residency training in internal medicine at the University of Toronto. He completed a PhD in Health Research Methodology under the supervision of Dr. Gordon Guyatt in 2021.


Vanier Canada Graduate Scholarship for work during his PhD studies.
Named a STAT Wunderkind (2019).

Current Research Projects

  • Living Network Meta-analysis in COVID-19 treatment
  • Guidelines for COVID-19 treatment with the World Health Organization
  • Network meta-analyses in community and hospital acquired pneumonia

Educational and Mentorship Activities

  • Dr. Siemieniuk sits on several graduate student committees. He coordinates a post-graduate course on systematic reviews. Dr. Siemieniuk teaches on the internal medicine clinical teaching unit at Hamilton General Hospital, and is actively engaged in mentorship of several internal medicine residents.

Trainee Supervision

  • Dr. Siemieniuk is considering supervision of Master’s and PhD level graduate students for the Health Research Methodology Program at McMaster University, postdoctoral fellows, and visiting researchers on a case by case basis.