Citation Rankings
Highly Cited Researchers

Medical and Health Sciences / Health Sciences Highly Cited Researchers 416 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Canada
Gordon Guyatt
Evidence-based medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603,120
261,256
0.433
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Canada
Holger Schünemann
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guidelines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349,787
190,904
0.546
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Canada
Salim Yusuf
Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522,493
139,931
0.268
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Canada
Deborah Cook
Critical Care Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
347,241
133,283
0.384
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Canada
Gina Agarwal
diabetes screening
general practice
vulnerable populations
community paramedicine
subsidized or
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,716
75,078
0.919
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Canada
Tinuke O Olagunju
Public Health
Epidemiology
Population Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,606
52,142
0.875
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Canada
Jeff Healey
Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,034
48,113
0.321
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Canada
Lehana Thabane
Biostatistics
Clinical Trials
Outcomes Research
Health Services Research
Methods for Evidence Synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74,121
42,315
0.571
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Canada
Jack Hirsh
Thrombosis andnhemostasis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
256,376
41,890
0.163
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Canada
Robby Nieuwlaat
Clinical Epidemiology
Guidelines
Systematic Reviews
Knowledge Translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,995
41,217
0.378
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Canada
Joseph Beyene
Biostatistical modelling
statistical genomics
meta-analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,220
39,542
0.346
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Canada
Jeffrey Weitz
Hematology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,874
38,241
0.351
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Canada
Shrikant I Bangdiwala
Global health
Nonparametric methods
Observer agreement
Methodology for clinical trials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,090
36,090
0.515
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Canada
Moayyedi Paul
Gastroenterology
Medicine
Evidence Based Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,758
32,781
0.382
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Canada
Michael Wilson
Health policy
Knowledge translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,562
30,162
0.899
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Canada
Mark Crowther
Hematology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,300
27,574
0.296
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Canada
Mark Loeb
Infectious Diseases
Pathology and Molecular Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,711
27,132
0.569
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Canada
Mahshid Dehghan
Nutrition epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,785
26,945
0.661
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Canada
Shamir Mehta
interventional cardiology
antithrombotic therapy
revascularization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,547
26,501
0.387
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Canada
Mark Tarnopolsky
mitochondrial disease
aging
exercise
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,292
24,279
0.322
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Canada
R Brian Haynes
clinical epidemiology
evidence-based knowledge translation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136,641
22,972
0.168
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Canada
Michelle Kho
Rehabilitation
critical illness
clinical trials
methodology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,269
22,908
0.632
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Canada
Pasqualina Lina Santaguida
Epidemiological Methods
Evidence Syntheses
Guidelines
Consensus Methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,607
19,324
0.653
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Canada
Emilie P Belley-Cote
cardiology
critical care
valve replacement
anticoagulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,709
18,856
0.911
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Canada
Romina Brignardello Petersen
research methods
systematic reviews
network meta-analysis
clinical practice guidelines development
evidence-based practice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,228
18,201
0.751
* Last 6 Years Citation Counts Rankings
Rankings
17
Canada
3
1
Ranking Based On Selection: 1
Gordon Guyatt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603,120
261,256
0.433
* Last 6 Years Citation Counts Rankings
Rankings
60
Canada
7
3
Ranking Based On Selection: 2
Holger Schünemann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349,787
190,904
0.546
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guidelines
* Last 6 Years Citation Counts Rankings
Rankings
163
Canada
13
4
Ranking Based On Selection: 3
Salim Yusuf
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522,493
139,931
0.268
* Last 6 Years Citation Counts Rankings
Rankings
191
Canada
15
5
Ranking Based On Selection: 4
Deborah Cook
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
347,241
133,283
0.384
* Last 6 Years Citation Counts Rankings
Rankings
1,277
Canada
49
8
Ranking Based On Selection: 5
Gina Agarwal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,716
75,078
0.919
diabetes screening
general practice
vulnerable populations
community paramedicine
subsidized or
* Last 6 Years Citation Counts Rankings
Rankings
2,399
Canada
86
13
Ranking Based On Selection: 6
Tinuke O Olagunju
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,606
52,142
0.875
* Last 6 Years Citation Counts Rankings
Rankings
2,751
Canada
97
14
Ranking Based On Selection: 7
Jeff Healey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,034
48,113
0.321
* Last 6 Years Citation Counts Rankings
Rankings
3,420
Canada
116
16
Ranking Based On Selection: 8
Lehana Thabane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74,121
42,315
0.571
Biostatistics
Clinical Trials
Outcomes Research
Health Services Research
Methods for Evidence Synthesis
* Last 6 Years Citation Counts Rankings
Rankings
3,476
Canada
122
18
Ranking Based On Selection: 9
Jack Hirsh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
256,376
41,890
0.163
* Last 6 Years Citation Counts Rankings
Rankings
3,569
Canada
124
19
Ranking Based On Selection: 10
Robby Nieuwlaat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,995
41,217
0.378
Clinical Epidemiology
Guidelines
Systematic Reviews
Knowledge Translation
* Last 6 Years Citation Counts Rankings
Rankings
3,825
Canada
137
20
Ranking Based On Selection: 11
Joseph Beyene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,220
39,542
0.346
Biostatistical modelling
statistical genomics
meta-analysis
* Last 6 Years Citation Counts Rankings
Rankings
4,021
Canada
143
21
Ranking Based On Selection: 12
Jeffrey Weitz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
108,874
38,241
0.351
* Last 6 Years Citation Counts Rankings
Rankings
4,382
Canada
157
23
Ranking Based On Selection: 13
Shrikant I Bangdiwala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,090
36,090
0.515
Global health
Nonparametric methods
Observer agreement
Methodology for clinical trials
* Last 6 Years Citation Counts Rankings
Rankings
5,148
Canada
186
27
Ranking Based On Selection: 14
Moayyedi Paul
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,758
32,781
0.382
* Last 6 Years Citation Counts Rankings
Rankings
5,845
Canada
208
28
Ranking Based On Selection: 15
Michael Wilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,562
30,162
0.899
* Last 6 Years Citation Counts Rankings
Rankings
6,710
Canada
238
32
Ranking Based On Selection: 16
Mark Crowther
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
93,300
27,574
0.296
* Last 6 Years Citation Counts Rankings
Rankings
6,885
Canada
244
33
Ranking Based On Selection: 17
Mark Loeb
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,711
27,132
0.569
Infectious Diseases
Pathology and Molecular Medicine
* Last 6 Years Citation Counts Rankings
Rankings
6,948
Canada
245
34
Ranking Based On Selection: 18
Mahshid Dehghan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,785
26,945
0.661
* Last 6 Years Citation Counts Rankings
Rankings
7,147
Canada
249
35
Ranking Based On Selection: 19
Shamir Mehta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,547
26,501
0.387
interventional cardiology
antithrombotic therapy
revascularization
* Last 6 Years Citation Counts Rankings
Rankings
8,240
Canada
293
41
Ranking Based On Selection: 20
Mark Tarnopolsky
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,292
24,279
0.322
* Last 6 Years Citation Counts Rankings
Rankings
8,975
Canada
314
43
Ranking Based On Selection: 21
R Brian Haynes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
136,641
22,972
0.168
* Last 6 Years Citation Counts Rankings
Rankings
9,014
Canada
315
44
Ranking Based On Selection: 22
Michelle Kho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,269
22,908
0.632
Rehabilitation
critical illness
clinical trials
methodology
* Last 6 Years Citation Counts Rankings
Rankings
11,739
Canada
422
48
Ranking Based On Selection: 23
Pasqualina Lina Santaguida
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,607
19,324
0.653
Epidemiological Methods
Evidence Syntheses
Guidelines
Consensus Methods
* Last 6 Years Citation Counts Rankings
Rankings
12,187
Canada
441
49
Ranking Based On Selection: 24
Emilie P Belley-Cote
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,709
18,856
0.911
cardiology
critical care
valve replacement
anticoagulation
* Last 6 Years Citation Counts Rankings
Rankings
12,805
Canada
468
53
Ranking Based On Selection: 25
Romina Brignardello Petersen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,228
18,201
0.751
research methods
systematic reviews
network meta-analysis
clinical practice guidelines development
evidence-based practice