Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 2.227 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Evidence-based medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612,656
273,356
0.446
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Cardiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
529,369
148,185
0.280
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
383,623
205,635
0.536
* Total Citation Counts Rankings
Ranking Based On Selection: 4
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guideline
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
362,815
204,138
0.563
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Critical Care Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343,090
137,461
0.401
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Thrombosis andnhemostasi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254,650
43,027
0.169
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
214,779
75,817
0.353
* Total Citation Counts Rankings
Ranking Based On Selection: 8
medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,053
65,155
0.310
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Vascular medicine
ethnicity
population healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173,645
59,884
0.345
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Evidence-based strategies to optimize the conduct of clinical research studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,668
43,570
0.270
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Psychiatric epidemiology
public mental health
global health
medical educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
152,264
137,658
0.904
* Total Citation Counts Rankings
Ranking Based On Selection: 12
higher education
youth studies
social theory
critical pedagogy
cultural studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,731
36,269
0.241
* Total Citation Counts Rankings
Ranking Based On Selection: 13
clinical epidemiology
evidence-based knowledge translatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,212
25,587
0.170
* Total Citation Counts Rankings
Ranking Based On Selection: 14
medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148,512
48,686
0.328
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Cardiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147,258
50,703
0.344
* Total Citation Counts Rankings
Ranking Based On Selection: 16
diabetes
dysglycemia
clinical trials
cardiovascula
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
132,928
37,083
0.279
* Total Citation Counts Rankings
Ranking Based On Selection: 17
ecology
evolution
epidemiology
statistics
theoretical biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,852
89,323
0.688
* Total Citation Counts Rankings
Ranking Based On Selection: 18
perioperative antithrombotic management
venous thromboembolism
anticoagulant therapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112,079
30,615
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Hematolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,614
40,447
0.362
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Biostatistical modelling
statistical genomics
meta-analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,279
40,563
0.365
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Clinical Epidemiology
Guidelines
Systematic Reviews
Knowledge Translatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,205
42,510
0.404
* Total Citation Counts Rankings
Ranking Based On Selection: 22
clinical practice guidelines
systematic reviews
allerg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104,123
62,126
0.597
* Total Citation Counts Rankings
Ranking Based On Selection: 23
clinical thromboembolis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103,777
29,649
0.286
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Statistics
Biostatistics
clinical epidemiology
public healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,064
23,965
0.247
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Hematolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,147
29,225
0.307
* Total Citation Counts Rankings
Rankings
10
3
1
Ranking Based On Selection: 1
Gordon Guyatt
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612,656
273,356
0.446
Evidence-based medicin
* Total Citation Counts Rankings
Rankings
24
4
2
Ranking Based On Selection: 2
Salim Yusuf
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
529,369
148,185
0.280
* Total Citation Counts Rankings
Rankings
97
8
3
Ranking Based On Selection: 3
PJ Devereaux
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
383,623
205,635
0.536
* Total Citation Counts Rankings
Rankings
122
11
4
Ranking Based On Selection: 4
Holger Schünemann
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
362,815
204,138
0.563
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guideline
* Total Citation Counts Rankings
Rankings
150
13
5
Ranking Based On Selection: 5
Deborah Cook
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343,090
137,461
0.401
Critical Care Medicin
* Total Citation Counts Rankings
Rankings
469
24
6
Ranking Based On Selection: 6
Jack Hirsh
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254,650
43,027
0.169
* Total Citation Counts Rankings
Rankings
741
34
7
Ranking Based On Selection: 7
John Eikelboom
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
214,779
75,817
0.353
* Total Citation Counts Rankings
Rankings
789
35
8
Ranking Based On Selection: 8
Stuart J Connolly
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,053
65,155
0.310
* Total Citation Counts Rankings
Rankings
1,160
46
9
Ranking Based On Selection: 9
Anand S
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
173,645
59,884
0.345
* Total Citation Counts Rankings
Rankings
1,319
54
10
Ranking Based On Selection: 10
Janice Pogue
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
161,668
43,570
0.270
Evidence-based strategies to optimize the conduct of clinical research studie
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Total Citation Counts Rankings
Rankings
1,477
60
11
Ranking Based On Selection: 11
Andrew T Olagunju
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
152,264
137,658
0.904
Psychiatric epidemiology
public mental health
global health
medical educatio
* Total Citation Counts Rankings
Rankings
1,510
61
12
Ranking Based On Selection: 12
Henry A Giroux
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,731
36,269
0.241
higher education
youth studies
social theory
critical pedagogy
cultural studie
* Total Citation Counts Rankings
Rankings
1,521
62
13
Ranking Based On Selection: 13
R Brian Haynes
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
150,212
25,587
0.170
clinical epidemiology
evidence-based knowledge translatio
* Total Citation Counts Rankings
Rankings
1,561
64
14
Ranking Based On Selection: 14
Roman Jaeschke
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
148,512
48,686
0.328
* Total Citation Counts Rankings
Rankings
1,591
67
15
Ranking Based On Selection: 15
Jeff Healey
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
147,258
50,703
0.344
* Total Citation Counts Rankings
Rankings
1,949
78
16
Ranking Based On Selection: 16
Hertzel Gerstein
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
132,928
37,083
0.279
* Total Citation Counts Rankings
Rankings
2,041
79
17
Ranking Based On Selection: 17
Ben Bolker
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,852
89,323
0.688
ecology
evolution
epidemiology
statistics
theoretical biolog
* Total Citation Counts Rankings
Rankings
2,711
101
18
Ranking Based On Selection: 18
James Douketis
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112,079
30,615
0.273
perioperative antithrombotic management
venous thromboembolism
anticoagulant therapy
* Total Citation Counts Rankings
Rankings
2,736
103
19
Ranking Based On Selection: 19
Jeffrey Weitz
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,614
40,447
0.362
* Total Citation Counts Rankings
Rankings
2,749
106
20
Ranking Based On Selection: 20
Joseph Beyene
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
111,279
40,563
0.365
Biostatistical modelling
statistical genomics
meta-analysi
* Total Citation Counts Rankings
Rankings
3,074
114
21
Ranking Based On Selection: 21
Robby Nieuwlaat
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,205
42,510
0.404
Clinical Epidemiology
Guidelines
Systematic Reviews
Knowledge Translatio
* Total Citation Counts Rankings
Rankings
3,130
118
22
Ranking Based On Selection: 22
Jan Brozek
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104,123
62,126
0.597
* Total Citation Counts Rankings
Rankings
3,155
120
23
Ranking Based On Selection: 23
Clive Kearon
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103,777
29,649
0.286
* Total Citation Counts Rankings
Rankings
3,586
136
24
Ranking Based On Selection: 24
Stephen Walter
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,064
23,965
0.247
Statistics
Biostatistics
clinical epidemiology
public healt
* Total Citation Counts Rankings
Rankings
3,709
142
25
Ranking Based On Selection: 25
Mark Crowther
McMaster University
Hamilton, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,147
29,225
0.307