Citation Rankings
Highly Cited Researchers

North America Medical and Health Sciences Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) 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.

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Total 57.931 scientist, 194 country, 10.373 institution
* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
Ahmedin Jemal
Cancer disparities
Cancer treatment and outcomes
Cancer surveillance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
841,033
506,137
0.602
* Total Citation Counts Rankings
Ranking Based On Selection :2
Canada
Gordon Guyatt
Evidence-based medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593,508
291,745
0.492
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
John PA Ioannidis
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
586,885
369,708
0.630
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
Ronald C Kessler
Psychiatric Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
581,824
205,674
0.353
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Ali H Mokdad
Health Metrics
Population Health
IHME
Global Health
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525,126
331,167
0.631
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Frank B Hu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
517,909
227,263
0.439
* Total Citation Counts Rankings
Ranking Based On Selection :7
Canada
Salim Yusuf
Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
516,791
165,677
0.321
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Paul M Ridker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490,524
166,887
0.340
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Joann E Manson
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481,026
148,914
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Luigi Ferrucci
Geriatrics and Gerontology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
402,807
194,040
0.482
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Emelia J Benjamin
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
401,099
177,619
0.443
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Graham Colditz
Epidemiology
Cancer Prevention
Health Outcomes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
395,644
72,468
0.183
* Total Citation Counts Rankings
Ranking Based On Selection :13
Canada
Peter Tugwell
Equity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385,350
207,415
0.538
* Total Citation Counts Rankings
Ranking Based On Selection :14
United States
Simon I Hay
IHME
Health Metrics
Global Health
Public Health
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
373,843
295,881
0.791
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Goncalo Abecasis
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Traits
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
369,912
192,293
0.520
* Total Citation Counts Rankings
Ranking Based On Selection :16
United States
Michael Karin
Molecular Biology
Immunology
Cancer Biology
Signal Transduction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349,834
84,198
0.241
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
David J Hunter
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
348,201
123,366
0.354
* Total Citation Counts Rankings
Ranking Based On Selection :18
Canada
Deborah Cook
Critical Care Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343,396
152,573
0.444
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Harlan Krumholz
health and health care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
338,808
131,415
0.388
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Tom Maniatis
molecular neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322,445
36,116
0.112
* Total Citation Counts Rankings
Ranking Based On Selection :21
United States
Eric Rimm
Professor of Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320,382
105,292
0.329
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Steven A Rosenberg
Immunotherapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312,441
84,788
0.271
* Total Citation Counts Rankings
Ranking Based On Selection :23
Canada
Holger Schünemann
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guidelines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
302,358
176,830
0.585
* Total Citation Counts Rankings
Ranking Based On Selection :24
United States
Peter Libby
medicine
cardiology
atherosclerosis
immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
300,883
97,369
0.324
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Richard A Flavell
Immunology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297,089
79,090
0.266
* Total Citation Counts Rankings
Rankings
3
United States
1
1
Ranking Based On Selection: 1
Ahmedin Jemal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
841,033
506,137
0.602
Cancer disparities
Cancer treatment and outcomes
Cancer surveillance
* Total Citation Counts Rankings
Rankings
10
Canada
3
1
Ranking Based On Selection: 2
Gordon Guyatt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593,508
291,745
0.492
* Total Citation Counts Rankings
Rankings
11
United States
5
1
Ranking Based On Selection: 3
John PA Ioannidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
586,885
369,708
0.630
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
* Total Citation Counts Rankings
Rankings
12
United States
6
3
Ranking Based On Selection: 4
Ronald C Kessler
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
581,824
205,674
0.353
* Total Citation Counts Rankings
Rankings
17
United States
10
1
Ranking Based On Selection: 5
Ali H Mokdad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525,126
331,167
0.631
Health Metrics
Population Health
IHME
Global Health
Epidemiology
* Total Citation Counts Rankings
Rankings
19
United States
12
4
Ranking Based On Selection: 6
Frank B Hu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
517,909
227,263
0.439
* Total Citation Counts Rankings
Rankings
20
Canada
4
2
Ranking Based On Selection: 7
Salim Yusuf
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
516,791
165,677
0.321
* Total Citation Counts Rankings
Rankings
29
United States
17
5
Ranking Based On Selection: 8
Paul M Ridker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490,524
166,887
0.340
* Total Citation Counts Rankings
Rankings
31
United States
19
6
Ranking Based On Selection: 9
Joann E Manson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481,026
148,914
0.310
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
* Total Citation Counts Rankings
Rankings
66
United States
34
1
Ranking Based On Selection: 10
Luigi Ferrucci
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
402,807
194,040
0.482
* Total Citation Counts Rankings
Rankings
67
United States
35
1
Ranking Based On Selection: 11
Emelia J Benjamin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
401,099
177,619
0.443
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammation
* Total Citation Counts Rankings
Rankings
71
United States
37
1
Ranking Based On Selection: 12
Graham Colditz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
395,644
72,468
0.183
* Total Citation Counts Rankings
Rankings
79
Canada
7
1
Ranking Based On Selection: 13
Peter Tugwell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385,350
207,415
0.538
* Total Citation Counts Rankings
Rankings
88
United States
45
3
Ranking Based On Selection: 14
Simon I Hay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
373,843
295,881
0.791
IHME
Health Metrics
Global Health
Public Health
Epidemiology
* Total Citation Counts Rankings
Rankings
95
United States
48
1
Ranking Based On Selection: 15
Goncalo Abecasis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
369,912
192,293
0.520
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Traits
* Total Citation Counts Rankings
Rankings
122
United States
61
2
Ranking Based On Selection: 16
Michael Karin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
349,834
84,198
0.241
Molecular Biology
Immunology
Cancer Biology
Signal Transduction
* Total Citation Counts Rankings
Rankings
125
United States
63
10
Ranking Based On Selection: 17
David J Hunter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
348,201
123,366
0.354
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Health
* Total Citation Counts Rankings
Rankings
137
Canada
12
4
Ranking Based On Selection: 18
Deborah Cook
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
343,396
152,573
0.444
* Total Citation Counts Rankings
Rankings
139
United States
67
1
Ranking Based On Selection: 19
Harlan Krumholz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
338,808
131,415
0.388
* Total Citation Counts Rankings
Rankings
169
United States
76
2
Ranking Based On Selection: 20
Tom Maniatis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322,445
36,116
0.112
* Total Citation Counts Rankings
Rankings
174
United States
78
13
Ranking Based On Selection: 21
Eric Rimm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320,382
105,292
0.329
* Total Citation Counts Rankings
Rankings
184
United States
86
2
Ranking Based On Selection: 22
Steven A Rosenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
312,441
84,788
0.271
* Total Citation Counts Rankings
Rankings
208
Canada
13
5
Ranking Based On Selection: 23
Holger Schünemann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
302,358
176,830
0.585
GRADE
Recommendations
Knowledge Synthesis
Systematic Reviews
Guidelines
* Total Citation Counts Rankings
Rankings
210
United States
93
14
Ranking Based On Selection: 24
Peter Libby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
300,883
97,369
0.324
* Total Citation Counts Rankings
Rankings
223
United States
97
2
Ranking Based On Selection: 25
Richard A Flavell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
297,089
79,090
0.266