Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :3
Richard Henry Glazier
primary care
equity
social disadvantage
Metrics
H-Index
i10 Index
Citation
90
303
29,531
* Rankings
Ranking Based On Selection :4
Douglas Lee
cardiovascular disease
quality of care
outcomes research
Metrics
H-Index
i10 Index
Citation
84
248
32,541
* Rankings
Ranking Based On Selection :5
Dennis Ko
Medicine
cardiology
interventional cardiology
outcomes
health services
Metrics
H-Index
i10 Index
Citation
68
241
21,438
* Rankings
Ranking Based On Selection :10
Eric Mcarthur
Epidemiology
Kidney disease
Clinical research
Prediction modelling
Metrics
H-Index
i10 Index
Citation
45
128
7,558
* Rankings
Ranking Based On Selection :11
Salimah Shariff
Epidemiology
Health-Services Research
Pharmacoepidemiology
Public Health
Metrics
H-Index
i10 Index
Citation
39
89
5,153
* Rankings
Ranking Based On Selection :12
Clare Atzema
atrial fibrillation
hypertension
emergency medicine
cancer
Metrics
H-Index
i10 Index
Citation
38
99
5,752
* Rankings
Ranking Based On Selection :15
Stephanie Dixon
Statistics
Epidemiology
Health Services Research
Metrics
H-Index
i10 Index
Citation
30
61
3,188
* Rankings
Ranking Based On Selection :22
Meltem Tuna
Statistics and research methods
predictive algorithms
chronic diseases
primary care
Metrics
H-Index
i10 Index
Citation
20
31
1,651
* Rankings
Ranking Based On Selection :27
Simon Chen
mental health
epidemiology
health service research
statistics
machine learning
Metrics
H-Index
i10 Index
Citation
13
14
609
* Rankings
Ranking Based On Selection :28
Jennifer Ns Reid
Statistics
Epidemiology
Health Services Research
Metrics
H-Index
i10 Index
Citation
11
11
1,339
M Reza Rezai
Epidemiology
Ethnicity and Cardiovascular Disease
Vitamin D and Cardiovascular Disease
Cardiovascular Imaging
Hemodynamics
Metrics
H-Index
i10 Index
Citation
9
9
403
Rankings
Ranking Based On Selection: 1
Craig Earle
Metrics
H-Index
i10 Index
Citation Counts
93
331
34,727
Rankings
Ranking Based On Selection: 2
David Juurlink
Metrics
H-Index
i10 Index
Citation Counts
90
290
35,452
Rankings
Ranking Based On Selection: 3
Richard Henry Glazier
Metrics
H-Index
i10 Index
Citation Counts
90
303
29,531
primary care
equity
social disadvantage
Rankings
Ranking Based On Selection: 4
Douglas Lee
Metrics
H-Index
i10 Index
Citation Counts
84
248
32,541
cardiovascular disease
quality of care
outcomes research
Rankings
Ranking Based On Selection: 5
Dennis Ko
Metrics
H-Index
i10 Index
Citation Counts
68
241
21,438
Medicine
cardiology
interventional cardiology
outcomes
health services
Rankings
Ranking Based On Selection: 6
Michael J Schull
Metrics
H-Index
i10 Index
Citation Counts
67
182
21,718
Rankings
Ranking Based On Selection: 7
Astrid Guttmann
Metrics
H-Index
i10 Index
Citation Counts
62
200
17,726
Rankings
Ranking Based On Selection: 8
Jiming Fang
Metrics
H-Index
i10 Index
Citation Counts
61
168
15,673
Rankings
Ranking Based On Selection: 9
Susan Bronskill
Metrics
H-Index
i10 Index
Citation Counts
57
145
11,507
Rankings
Ranking Based On Selection: 10
Eric Mcarthur
Metrics
H-Index
i10 Index
Citation Counts
45
128
7,558
Epidemiology
Kidney disease
Clinical research
Prediction modelling
Rankings
Ranking Based On Selection: 11
Salimah Shariff
Metrics
H-Index
i10 Index
Citation Counts
39
89
5,153
Epidemiology
Health-Services Research
Pharmacoepidemiology
Public Health
Rankings
Ranking Based On Selection: 12
Clare Atzema
Metrics
H-Index
i10 Index
Citation Counts
38
99
5,752
atrial fibrillation
hypertension
emergency medicine
cancer
Rankings
Ranking Based On Selection: 13
Maria Chiu
Metrics
H-Index
i10 Index
Citation Counts
34
59
4,856
Rankings
Ranking Based On Selection: 14
Liisa Jaakkimainen
Metrics
H-Index
i10 Index
Citation Counts
32
47
4,996
Rankings
Ranking Based On Selection: 15
Stephanie Dixon
Metrics
H-Index
i10 Index
Citation Counts
30
61
3,188
Statistics
Epidemiology
Health Services Research
Rankings
Ranking Based On Selection: 17
Maria Sundaram
Metrics
H-Index
i10 Index
Citation Counts
30
43
6,935
Rankings
Ranking Based On Selection: 18
Danielle Marie Nash
Metrics
H-Index
i10 Index
Citation Counts
27
46
2,712
Rankings
Ranking Based On Selection: 19
Kimberly A Fernandes
Metrics
H-Index
i10 Index
Citation Counts
24
35
2,877
Rankings
Ranking Based On Selection: 21
Laura Maclagan
Metrics
H-Index
i10 Index
Citation Counts
20
32
1,535
Rankings
Ranking Based On Selection: 22
Meltem Tuna
Metrics
H-Index
i10 Index
Citation Counts
20
31
1,651
Statistics and research methods
predictive algorithms
chronic diseases
primary care
Rankings
Ranking Based On Selection: 23
Mahmoud Azimaee
Metrics
H-Index
i10 Index
Citation Counts
17
22
2,228
Rankings
Ranking Based On Selection: 24
Britney Le
Metrics
H-Index
i10 Index
Citation Counts
15
20
832
Rankings
Ranking Based On Selection: 25
Michael Pugliese
Metrics
H-Index
i10 Index
Citation Counts
14
20
659
Rankings
Ranking Based On Selection: 26
Sophie Kitchen
Metrics
H-Index
i10 Index
Citation Counts
13
15
729
Rankings
Ranking Based On Selection: 27
Simon Chen
Metrics
H-Index
i10 Index
Citation Counts
13
14
609
mental health
epidemiology
health service research
statistics
machine learning
Rankings
Ranking Based On Selection: 28
Jennifer Ns Reid
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,339
Statistics
Epidemiology
Health Services Research
Rankings
Ranking Based On Selection: 29
Zilong Zhang
Metrics
H-Index
i10 Index
Citation Counts
9
9
310
Rankings
Ranking Based On Selection: 30
M Reza Rezai
Metrics
H-Index
i10 Index
Citation Counts
9
9
403
Epidemiology
Ethnicity and Cardiovascular Disease
Vitamin D and Cardiovascular Disease
Cardiovascular Imaging
Hemodynamics
Rankings
Ranking Based On Selection: 32
Erika Yates
Metrics
H-Index
i10 Index
Citation Counts
8
8
325
Rankings
Ranking Based On Selection: 33
Haris Imsirovic
Metrics
H-Index
i10 Index
Citation Counts
7
6
180