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 :1
Rp Brennan
Neuroradiology
Stroke
Carotid
Metrics
H-Index
i10 Index
Citation
155
772
95,522
* Rankings
Ranking Based On Selection :3
Gilbert L Raff
coronary artery computed tomography
CT-derived fractional flow reserve
cardiac magnetic resonance imaging
Metrics
H-Index
i10 Index
Citation
66
154
63,864
* Rankings
Ranking Based On Selection :4
David E Haines
Atrial fibrillation mechanisms
biophysics of catheter ablation
Metrics
H-Index
i10 Index
Citation
63
148
26,902
* Rankings
Ranking Based On Selection :6
Peter Conlon
kidney disease
Metrics
H-Index
i10 Index
Citation
60
187
15,502
* Rankings
Ranking Based On Selection :8
William Tormey
Chemical Pathology
Medicine
Pharmacology
Medical Research
Public Affairs
Metrics
H-Index
i10 Index
Citation
40
89
6,485
* Rankings
Ranking Based On Selection :13
Stewart Graham
Metabolomics
neurological disorders
translational science
biomarkers
disease mechanisms
Metrics
H-Index
i10 Index
Citation
35
72
3,389
* Rankings
Ranking Based On Selection :15
Antonio Ysunza
Medicine
Voice
Speech
Resonance
Craniofacial anomalies
Metrics
H-Index
i10 Index
Citation
33
56
3,095
* Rankings
Ranking Based On Selection :17
Michelle F Wallace
Radiation Oncology
Oncology
Breast Cancer
Prostate Cancer
APBI
Metrics
H-Index
i10 Index
Citation
30
54
4,212
* Rankings
Ranking Based On Selection :18
Francesca Brett
neuroscience
oncology
dementia
Metrics
H-Index
i10 Index
Citation
28
57
7,770
* Rankings
Ranking Based On Selection :20
Jannifer Stromberg
Radiation Oncology
Breast cancer
Lung Cancer
Prostate cancer
Endometrial Cancer
Metrics
H-Index
i10 Index
Citation
23
28
3,592
* Rankings
Ranking Based On Selection :21
Laura Lamb
benign urology
cancer
diagnostic testing
coronavirus
Metrics
H-Index
i10 Index
Citation
22
33
1,798
* Rankings
Ranking Based On Selection :22
Leslie Rocher
Nephrology and transplant medicine
quality and safety
ethics and outcomes in health care
EBM
general internal medicine
Metrics
H-Index
i10 Index
Citation
22
35
5,718
* Rankings
Ranking Based On Selection :25
Sulaiman Bharwani
Children's diseases
pediatrics
stomach disorders
intestinal and colon disorders
Metrics
H-Index
i10 Index
Citation
20
24
2,417
* Rankings
Ranking Based On Selection :28
Cristina Simoes-Franklin
Neuroimaging
Medical Physics
Bioengineering
Cochlear Implants
Metrics
H-Index
i10 Index
Citation
16
23
1,501
* Rankings
Ranking Based On Selection :31
Sarah Power
Diagnostic and Interventional Neuroradiology
Metrics
H-Index
i10 Index
Citation
15
17
652
* Rankings
Ranking Based On Selection :39
Shupeng Chen
Image-guided Radiotherapy
PET imaging
Metrics
H-Index
i10 Index
Citation
9
9
392
Treta Purohit
Internal medicine
Gastroenterology
Inflammatory Bowel Diseases
Chronic Liver Diseases
Metrics
H-Index
i10 Index
Citation
7
7
435
* Rankings
Ranking Based On Selection :46
Fadi Qutishat
Anaesthesia and intensive Care Medicine
Metrics
H-Index
i10 Index
Citation
6
3
90
Timothy Page
refractive cataract surgery
complex anterior segment surgery
Metrics
H-Index
i10 Index
Citation
4
3
65
* Rankings
Ranking Based On Selection :56
Ciaran F Donegan
Medicine - General and Geriatric Medicine
Metrics
H-Index
i10 Index
Citation
2
2
20
Rankings
Ranking Based On Selection: 1
Rp Brennan
Metrics
H-Index
i10 Index
Citation Counts
155
772
95,522
Rankings
Ranking Based On Selection: 2
George A Williams
Metrics
H-Index
i10 Index
Citation Counts
81
220
25,667
Rankings
Ranking Based On Selection: 3
Gilbert L Raff
Metrics
H-Index
i10 Index
Citation Counts
66
154
63,864
coronary artery computed tomography
CT-derived fractional flow reserve
cardiac magnetic resonance imaging
Rankings
Ranking Based On Selection: 4
David E Haines
Metrics
H-Index
i10 Index
Citation Counts
63
148
26,902
Atrial fibrillation mechanisms
biophysics of catheter ablation
Rankings
Ranking Based On Selection: 5
Chris J Thompson
Metrics
H-Index
i10 Index
Citation Counts
61
179
13,636
Rankings
Ranking Based On Selection: 6
Peter Conlon
Metrics
H-Index
i10 Index
Citation Counts
60
187
15,502
Rankings
Ranking Based On Selection: 7
Niall Pender
Metrics
H-Index
i10 Index
Citation Counts
42
76
6,896
Rankings
Ranking Based On Selection: 8
William Tormey
Metrics
H-Index
i10 Index
Citation Counts
40
89
6,485
Chemical Pathology
Medicine
Pharmacology
Medical Research
Public Affairs
Rankings
Ranking Based On Selection: 9
Frank Murray
Metrics
H-Index
i10 Index
Citation Counts
40
97
6,734
Rankings
Ranking Based On Selection: 10
Evan J Kass
Metrics
H-Index
i10 Index
Citation Counts
39
61
4,724
Rankings
Ranking Based On Selection: 11
Alan Koffron
Metrics
H-Index
i10 Index
Citation Counts
38
59
8,757
Rankings
Ranking Based On Selection: 12
Barbara Ducatman
Metrics
H-Index
i10 Index
Citation Counts
36
70
6,679
Rankings
Ranking Based On Selection: 13
Stewart Graham
Metrics
H-Index
i10 Index
Citation Counts
35
72
3,389
Metabolomics
neurological disorders
translational science
biomarkers
disease mechanisms
Rankings
Ranking Based On Selection: 14
Conall O' Seaghdha
Metrics
H-Index
i10 Index
Citation Counts
33
50
4,716
Rankings
Ranking Based On Selection: 15
Antonio Ysunza
Metrics
H-Index
i10 Index
Citation Counts
33
56
3,095
Medicine
Voice
Speech
Resonance
Craniofacial anomalies
Rankings
Ranking Based On Selection: 16
Amr Abbas
Metrics
H-Index
i10 Index
Citation Counts
31
55
3,546
Rankings
Ranking Based On Selection: 17
Michelle F Wallace
Metrics
H-Index
i10 Index
Citation Counts
30
54
4,212
Radiation Oncology
Oncology
Breast Cancer
Prostate Cancer
APBI
Rankings
Ranking Based On Selection: 18
Francesca Brett
Metrics
H-Index
i10 Index
Citation Counts
28
57
7,770
neuroscience
oncology
dementia
Rankings
Ranking Based On Selection: 19
Alan Martin
Metrics
H-Index
i10 Index
Citation Counts
23
44
2,787
Rankings
Ranking Based On Selection: 20
Jannifer Stromberg
Metrics
H-Index
i10 Index
Citation Counts
23
28
3,592
Radiation Oncology
Breast cancer
Lung Cancer
Prostate cancer
Endometrial Cancer
Rankings
Ranking Based On Selection: 21
Laura Lamb
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,798
benign urology
cancer
diagnostic testing
coronavirus
Rankings
Ranking Based On Selection: 22
Leslie Rocher
Metrics
H-Index
i10 Index
Citation Counts
22
35
5,718
Nephrology and transplant medicine
quality and safety
ethics and outcomes in health care
EBM
general internal medicine
Rankings
Ranking Based On Selection: 23
Xuanfeng Ding
Metrics
H-Index
i10 Index
Citation Counts
21
32
1,769
Rankings
Ranking Based On Selection: 24
Richard Sheahan
Metrics
H-Index
i10 Index
Citation Counts
21
33
4,760
Rankings
Ranking Based On Selection: 25
Sulaiman Bharwani
Metrics
H-Index
i10 Index
Citation Counts
20
24
2,417
Children's diseases
pediatrics
stomach disorders
intestinal and colon disorders
Rankings
Ranking Based On Selection: 26
Jesse C Krakauer
Metrics
H-Index
i10 Index
Citation Counts
19
26
4,492
Rankings
Ranking Based On Selection: 27
Steven M Truscott
Metrics
H-Index
i10 Index
Citation Counts
18
19
3,487
Rankings
Ranking Based On Selection: 28
Cristina Simoes-Franklin
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,501
Neuroimaging
Medical Physics
Bioengineering
Cochlear Implants
Rankings
Ranking Based On Selection: 29
Kuei C Lee
Metrics
H-Index
i10 Index
Citation Counts
16
17
1,335
Rankings
Ranking Based On Selection: 30
An Qin
Metrics
H-Index
i10 Index
Citation Counts
15
19
805
Rankings
Ranking Based On Selection: 31
Sarah Power
Metrics
H-Index
i10 Index
Citation Counts
15
17
652
Rankings
Ranking Based On Selection: 32
Michael Newton
Metrics
H-Index
i10 Index
Citation Counts
14
18
487
Rankings
Ranking Based On Selection: 33
Maha S Jawad
Metrics
H-Index
i10 Index
Citation Counts
14
18
888
Rankings
Ranking Based On Selection: 34
Zachary Seymour
Metrics
H-Index
i10 Index
Citation Counts
13
15
1,075
Rankings
Ranking Based On Selection: 35
Palaniappan Manickam
Metrics
H-Index
i10 Index
Citation Counts
11
13
704
Rankings
Ranking Based On Selection: 36
Abhishek Swami
Metrics
H-Index
i10 Index
Citation Counts
11
11
842
Rankings
Ranking Based On Selection: 37
Kurt Meyer
Metrics
H-Index
i10 Index
Citation Counts
11
11
702
Rankings
Ranking Based On Selection: 38
Andrew B Thompson
Metrics
H-Index
i10 Index
Citation Counts
10
10
347
Rankings
Ranking Based On Selection: 39
Shupeng Chen
Metrics
H-Index
i10 Index
Citation Counts
9
9
392
Image-guided Radiotherapy
PET imaging
Rankings
Ranking Based On Selection: 40
Ankur Aggarwal
Metrics
H-Index
i10 Index
Citation Counts
9
9
290
Rankings
Ranking Based On Selection: 41
Andrew M Aneese
Metrics
H-Index
i10 Index
Citation Counts
8
7
320
Rankings
Ranking Based On Selection: 42
Treta Purohit
Metrics
H-Index
i10 Index
Citation Counts
7
7
435
Internal medicine
Gastroenterology
Inflammatory Bowel Diseases
Chronic Liver Diseases
Rankings
Ranking Based On Selection: 43
David Lick
Metrics
H-Index
i10 Index
Citation Counts
7
5
823
Rankings
Ranking Based On Selection: 44
Brandon M Stone
Metrics
H-Index
i10 Index
Citation Counts
7
7
594
Rankings
Ranking Based On Selection: 45
Samantha Hartner
Metrics
H-Index
i10 Index
Citation Counts
6
4
94
Rankings
Ranking Based On Selection: 46
Fadi Qutishat
Metrics
H-Index
i10 Index
Citation Counts
6
3
90
Anaesthesia and intensive Care Medicine
Rankings
Ranking Based On Selection: 47
Derek Schulze
Metrics
H-Index
i10 Index
Citation Counts
5
5
432
Rankings
Ranking Based On Selection: 48
Rami Khoury Abdulla
Metrics
H-Index
i10 Index
Citation Counts
5
3
86
Rankings
Ranking Based On Selection: 49
Estela Mogrovejo
Metrics
H-Index
i10 Index
Citation Counts
5
2
99
Rankings
Ranking Based On Selection: 50
Hafiz Hussein
Metrics
H-Index
i10 Index
Citation Counts
4
4
74
Rankings
Ranking Based On Selection: 51
Shankar Lal
Metrics
H-Index
i10 Index
Citation Counts
4
1
70
Rankings
Ranking Based On Selection: 52
Lewis Rosenbaum
Metrics
H-Index
i10 Index
Citation Counts
4
4
122
geriatric
rheumatology
internal medicine
neurology
Rankings
Ranking Based On Selection: 53
Timothy Page
Metrics
H-Index
i10 Index
Citation Counts
4
3
65
refractive cataract surgery
complex anterior segment surgery
Rankings
Ranking Based On Selection: 54
Ashley M Fowler
Metrics
H-Index
i10 Index
Citation Counts
3
3
280
Rankings
Ranking Based On Selection: 55
Julie A Ferris
Metrics
H-Index
i10 Index
Citation Counts
3
3
138
Rankings
Ranking Based On Selection: 56
Ciaran F Donegan
Metrics
H-Index
i10 Index
Citation Counts
2
2
20
Medicine - General and Geriatric Medicine
Rankings
Ranking Based On Selection: 57
Ruth Lerman
Metrics
H-Index
i10 Index
Citation Counts
2
1
134
mindfulness
cancer
mbsr