Faculty profile

Michelle Greiver

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ProfessorDepartment of Family & Community MedicineUniversity of Toronto

Michelle Greiver

Professor

Department of Family & Community Medicine

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

ORCID

Supervision signals

Professors usually supervise graduate students in their department's programs.
35 publications in the last five years, latest in 2026.
Senior (last) author on 6 recent papers, a sign of leading a research group.
Principal investigator on 6 research grants (6 CIHR), most recently in 2022.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

181

Citations

129

Collaborators

Grants

Publications by year

Counts cover the publications linked to this profile. Citations and the h-index appear when the source records them.

Education

Master of Science, Health Policy, Management and Evaluation
Doctor of Medicine

Profiles and links

University Profile Search on Google Scholar iDORCID

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Signals and details

Research

Read how they describe their research on their University of Toronto profile.

Genetics Knowledge translation and implementation science in health

Latest papers

Lessons learned and recommendations from the Canadian adaptive platform trial of treatments for COVID in community settings (CanTreatCOVID).
Contemporary clinical trials · 2026
Oral Nirmatrelvir-Ritonavir for Covid-19 in Higher-Risk Outpatients.
The New England journal of medicine · 2026
Family physicians' experiences with an electronic medical record-integrated family history collection strategy: a qualitative study.
BJGP open · 2026

All 71 publications

Latest funding

Share2Care: Who is doing what in interprofessional primary care teams? Measuring performance indicators that reflect and optimize team-based care
CIHR · 2025 · Co-investigator
$967,725
An eHealth Technology Intervention Pragmatic trials Platform integrated in the Canadian Primary Care Sentinel Surveillance Network: The eTIPP-CPCSSN
CIHR · 2023 · Co-investigator
$199,895
Opening the black box on the contribution of interprofessional health providers in primary care: Measuring performance indicators that reflect and optimize practice
CIHR · 2023 · Co-investigator
$100,000

All 34 grants and awards

71 publications.

Lessons learned and recommendations from the Canadian adaptive platform trial of treatments for COVID in community settings (CanTreatCOVID).

Hosseini B, Condon A, da Costa BR, Daley P, Greiver M, Jüni P, Lee TC, McBrien K, McDonald EG, Murthy S, Selby P, Pinto AD

Contemporary clinical trials2026

DOI: 10.1016/j.cct.2026.108303 PMID: 41985658

Oral Nirmatrelvir-Ritonavir for Covid-19 in Higher-Risk Outpatients.

Butler CC, Pinto AD, Harris V, Holmes J, Rahman NM, Cureton L, Hayward G, Richards DB, Lowe DM, Standing JF, Breuer J, Hood K, Png ME, Petrou S, Dorward J, Patel MG, Thomas NPB, Evans P, Hart ND, Jani BD, Hosseini B, Murthy S, McBrien K, Condon A, McDonald EG, Daley P, Greiver M, da Costa BR, Selby P, Jüni P, Lee TC, Shi H, Detry MA, Saunders CT, Fitzgerald M, Berry NS, Saville BR, Khoo SH, Nguyen-Van-Tam JS, Hobbs FDR, Yu LM, Little P, PANORAMIC Trial and CanTreatCOVID Trial Collaborative Groups

The New England journal of medicine2026

DOI: 10.1056/nejmoa2502457 PMID: 42019019

Family physicians' experiences with an electronic medical record-integrated family history collection strategy: a qualitative study.

Walji S, Makuwaza T, Bearss E, Kukan S, Aliarzadeh B, Allanson J, Greiver M, Grunfeld E, Gupta K, Heisey R, Ivers N, Kavanagh D, Kim R, Levy M, Moineddin R, Morrison S, Muraca M, Mutasingwa D, O'Brien MA, Permaul J, Sullivan F, Wilson BJ, Carroll JC

BJGP open2026

DOI: 10.3399/bjgpo.2025.0051 PMID: 41238382

Antihypertensive Medication Timing and Cardiovascular Events and Death

Garrison SR, Bakal JA, Kolber MR, Korownyk CS, Green LA, Kirkwood JEM, McAlister FA, Padwal RS, Lewanczuk R, Hill MD

Journal of the American Medical Association (JAMA)202539 citations

DOI: 10.1001/jama.2025.4390

The co-occurrence of multimorbidity and polypharmacy among middle-aged and older adults in Canada: A cross-sectional study using the Canadian Longitudinal Study on Aging (CLSA) and the Canadian Primary Care Sentinel Surveillance Network (CPCSSN)

Nicholson K, Salerno J, Borhan S, Cossette B, Guenter D, Vanstone M, Queenan J, Greiver M, Howard M, Terry AL

PLoS ONE202515 citations

DOI: 10.1371/journal.pone.0312873

Association between medication adherence and cardiovascular outcomes in patients with both diabetes and hypertension in primary care settings in Canada: A retrospective cohort study

Su M, Qin XS, Li Y, Upshur R, Sullivan F, Légaré F, Greiver M, Wu S, Wei X

PLoS ONE20256 citations

DOI: 10.1371/journal.pone.0319991

Canadian Adaptive Platform Trial of Treatments for COVID in Community Settings (CanTreatCOVID): protocol for a randomised controlled adaptive platform trial of treatments for acute SARS-CoV-2 infection in community settings

Hosseini B, Condon A, da Costa BR, Daley P, Greiver M, Jüni P, Lee TC, McBrien K, McDonald EG, Murthy S

BMJ Open20256 citations

DOI: 10.1136/bmjopen-2024-097134

Interaction Between Chronotype and the Timing of Antihypertensive Medication on Cardiovascular Events and Death

Garrison SR, Bakal JA, Kolber MR, Korownyk CS, Green LA, Kirkwood JEM, McAlister FA, Padwal RS, Lewanczuk R, Hill MD

Journal of the American Heart Association20254 citations

DOI: 10.1161/jaha.125.044278

A Multi-Site, Randomized, Parallel-Group, Controlled Trial of Virtually-Delivered Sahaj Samadhi Meditation for the Management of Moderate Depressive Symptoms in Chronic Pain

Cheng DK, Simpson R, Moineddin R, Katz J, Mulsant BH, Vasudev A, Greiver M, Hosseiny F, Inzitari M, Newman RI

Journal of Pain Research20251 citations

DOI: 10.2147/jpr.s515229

Trends in missed paediatric preventive primary care visits during the COVID-19 pandemic using routinely collected electronic medical records in Ontario, Canada (2015-2022).

Bayoumi I, Mcfadden K, Valkanas H, Tu K, Kalia S, Chen T, Christie CD, Rourke J, Rourke L, Greiver M, Leduc D, Li P

Family medicine and community health2025

DOI: 10.1136/fmch-2025-003575 PMID: 41290264

Share2Care: Who is doing what in interprofessional primary care teams? Measuring performance indicators that reflect and optimize team-based care

Co-investigatorCIHR2025Project Grant

Principal investigators: Sourial, Nadia; Donnelly, Catherine A; Marshall, Emily G; Poitras, Marie-Eve; Slater, Morgan B

Keywords: Electronic Medical Records; Interprofessional Primary Care; Knowledge Mobilization; Performance Indicators

$967,725

An eHealth Technology Intervention Pragmatic trials Platform integrated in the Canadian Primary Care Sentinel Surveillance Network: The eTIPP-CPCSSN

Co-investigatorCIHR2023Catalyst Grant: SPOR Innovative Clinical Trials (iCT)

Principal investigators: Gupta, Samir; Dickson, Grant P; Phillips, Lacey; Singer, Alexander G

Keywords: Chronic Obstructive Pulmonary Disease; Computerized Decision Support Systems; Ehealth; Information Systems Design; Knowledge Translation; Pragmatic Trials; Primary Care

$199,895

Opening the black box on the contribution of interprofessional health providers in primary care: Measuring performance indicators that reflect and optimize practice

Co-investigatorCIHR2023Project Grant - Priority Announcement: Health Services and Policy Research

Principal investigators: Sourial, Nadia; Donnelly, Catherine A; Poitras, Marie-Eve; Slater, Morgan B

Keywords: Electronic Medical Records; Interprofessional Primary Care; Participatory Research; Performance Indicators

$100,000

Primary Care and Severe Mental Illness Research Priorities Blueprint

Co-investigatorCIHR2022Planning and Dissemination Grant - Institute Community Support

Principal investigators: O'Neill, Braden

Keywords: Bipolar; Mental Health; Patient-Oriented Research; Primary Care; Research Priorities; Schizophrenia

$10,000

Canadian ADAptive Platform Trial of COVID-19 Therapeutics in Community Settings (Can-ADAPT COVID)

Principal investigatorCIHR2022Operating Grant: COVID-19 Outpatient Therapeutic Studies

Principal investigators: Pinto, Andrew D; Keynan, Yoav; Greiver, Michelle; Jüni, Peter; Lee, Todd C; McDonald, Emily G; Murthy, Srinivas; Selby, Peter L

Keywords: Adaptive Platform Trial; Covid-19; Nirmatrelvir; Out-Patient; Sars-Cov-2; Therapeutics

$5,000,000

ARtificial intelligence to Enable Automated REspiratory illness Surveillance through Primary care (AREA-RESP)

Co-investigatorCIHR2022Catalyst Grant: CPHO Report - General Pool

Principal investigators: Pinto, Andrew D; Price, David J

Keywords: Artificial Intelligence; Covid-19; Influenza; Machine Learning; Natural Language Processing; Primary Health Care; Public Health; Respiratory Illness; Sars-Cov-2; Surveillance

$99,972

A Training Platform in Pragmatic Registry-Based Trials: Connecting Canada's Health, Data, and Biomanufacturing Sectors

Co-investigatorCIHR2022Training Grant: Clinical Trials Training Platforms

Principal investigators: Garg, Amit; Basile, Erika; Bhatia, Rajan S; Clemens, Kristin K; Dixon, Stephanie N; Ethier, Jean-Francois; Fowler, Robert A; Gagnier, Joel J; Garrison, Scott R; Grimshaw, Jeremy M; Hohl, Corinne M; Ivers, Noah M; Jairath, Vipul; James, Matthew T; Jerath, Angela; Katz, Alan; Krzyzanowska, Monika K; LeBlanc, Annie; Lee, Douglas S; Mcalister, Finlay A; McGrail, Kimberlyn M; McIntyre, Lauralyn A; Mittmann, Nicole; Naylor, Kyla; Presseau, Justin; Schull, Michael J; Sontrop, Jessica M; Spence, Jessica; Swartz, Richard; Taljaard, Monica; Tangri, Navdeep; Udell, Jacob A; Weijer, Charles E; Zwarenstein, Merrick F

Keywords: Administrative Healthcare Data; Implementation Science; Methods; Pragmatic Clinical Trial; Randomized Controlled Trial; Training

$3,479,320

Canadian ADAptive Platform Trial of COVID-19 Therapeutics in Community Settings (Can-ADAPT COVID)

Principal investigatorCIHR2022Operating Grant: COVID-19 Outpatient Therapeutic Studies - Indirect Costs

Principal investigators: Pinto, Andrew D; Keynan, Yoav; Greiver, Michelle; Jüni, Peter; Lee, Todd C; McDonald, Emily G; Murthy, Srinivas; Selby, Peter L

Keywords: Adaptive Platform Trial; Covid-19; Nirmatrelvir; Out-Patient; Sars-Cov-2; Therapeutics

$1,250,000

Mobilizing Knowledge and Implementing Equitable and Cost-Effective Health and Social Care Services for Persons Living with Diabetes in Canada

Principal investigatorCIHR2021SPOR Networks - Knowledge Mobilization and Implementation Science

Principal investigators: Lewis, Gary F; MacPhail, Carolyn L; Murphy, Christine A; pelletier, Marc C; Ramdass, Seeta; Roche, Brooks; Banerjee, Ananya T; Bélanger, Mathieu; Cafazzo, Joseph A; Campbell, David J; Carpentier, André C; Castle, David; de Mestral, Charles; Després, Jean-Pierre; Dogba, Maman A; Forbes, Thomas; Ganann, Rebecca L; Greiver, Michelle; Kastner, Monika; King, Malcolm; Lipscombe, Lorraine; Maberley, David; Markle-Reid, Maureen Frances; McGavock, Jonathan M; Perkins, Bruce A; Rac, Valeria E; Rochon, Paula A; Selby, Peter L; Senior, Peter A; Sherifali, Diana T; Tchernof, André; Weisman, Alanna; Witteman, Holly M; Yeung Laiwah, Roseanne O

Keywords: Diabetes; Population Health

$3,744,045

Preventing Vision Loss from Diabetic Retinopathy: Guiding Primary Care Diabetic Retinopathy Screening in Canada Through the Use of Provincial Healthcare Administrative Data

Co-investigatorCIHR2021Team Grant: Diabetes Mechanisms and Translational Solutions - General Pool

Principal investigators: Rac, Valeria E; Brent, Michael H; Maberley, David; Manca, Donna P; sissmore, Debbie

Keywords: Diabetes; Diabetic Retinopathy; Health Services Research; Healthcare Administrative Data; Preventative Medicine; Primary Care; Screening

$1,710,384

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Profile data last refreshed on September 26, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Michelle Greiver

Research

Latest papers

Latest funding

Lessons learned and recommendations from the Canadian adaptive platform trial of treatments for COVID in community settings (CanTreatCOVID).

Oral Nirmatrelvir-Ritonavir for Covid-19 in Higher-Risk Outpatients.

Family physicians' experiences with an electronic medical record-integrated family history collection strategy: a qualitative study.

Antihypertensive Medication Timing and Cardiovascular Events and Death

The co-occurrence of multimorbidity and polypharmacy among middle-aged and older adults in Canada: A cross-sectional study using the Canadian Longitudinal Study on Aging (CLSA) and the Canadian Primary Care Sentinel Surveillance Network (CPCSSN)

Association between medication adherence and cardiovascular outcomes in patients with both diabetes and hypertension in primary care settings in Canada: A retrospective cohort study

Canadian Adaptive Platform Trial of Treatments for COVID in Community Settings (CanTreatCOVID): protocol for a randomised controlled adaptive platform trial of treatments for acute SARS-CoV-2 infection in community settings

Interaction Between Chronotype and the Timing of Antihypertensive Medication on Cardiovascular Events and Death

A Multi-Site, Randomized, Parallel-Group, Controlled Trial of Virtually-Delivered Sahaj Samadhi Meditation for the Management of Moderate Depressive Symptoms in Chronic Pain

Trends in missed paediatric preventive primary care visits during the COVID-19 pandemic using routinely collected electronic medical records in Ontario, Canada (2015-2022).

Frequent collaborators

Rahim Moineddin

Braden O’Neill

Christopher Meaney

Frank Sullivan

Alexander Singer

Ross Upshur

Derelie A Mangin

Kimberlyn McGrail

Michael Escobar

Karim Keshavjee

Noah Ivers

Alan Katz

Peter Selby

Peter Daley

David White

Tyler Williamson

Srinivas Murthy

Abhimanyu Sud

Colleen Norris

Kerry McBrien

Tara Kiran

Eva Grunfeld

Richard Lewanczuk

Jennifer Shuldiner

Conrad Pow

Haolun Shi

Paul Krueger

Olli Saarela

Jeffrey Bakal

Jayna Holroyd-Leduc

Raymond Kim

Martin Fortin

Marianne Saragosa

Martina Kelly

Michael Silverman

Kulamakan Kulasegaram

Jennifer Rayner

Darren Lau

Sylvain Lother

Jennifer Hulme