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" (870,053 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: 2
J Steven Leeder
Pharmacogenetics
Pharmacogenomics
Pediatric Clinical Pharmacology
Drug Metabolism
Adverse Drug Reactions
Metrics
H-Index
i10 Index
Citation
81
244
27,049

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* Rankings
Ranking Based On Selection: 12
Girish Shirali
Congenital heart disease
echocardiography
Metrics
H-Index
i10 Index
Citation
39
83
6,616
* Rankings
Ranking Based On Selection: 15
Jason Fraser
Pediatric Surgery
Bariatric Surgery
Minimally Invasive Surgery
Metrics
H-Index
i10 Index
Citation
34
74
3,534
* Rankings
Ranking Based On Selection: 21
Robin Paul Shook
Physical activity
obesity
cardiovascular disease
energy balance
Metrics
H-Index
i10 Index
Citation
31
61
3,343
* Rankings
Ranking Based On Selection: 30
John Papagiannis
Medicine
Pediatrics
Pediatric Cardiology
Congenital heart disease
Electrophysiology
Metrics
H-Index
i10 Index
Citation
27
44
3,333
* Rankings
Ranking Based On Selection: 37
Timothy Apodaca
motivational interviewing
mechanisms of behavior change
adolescent substance abuse
Metrics
H-Index
i10 Index
Citation
24
34
3,030
* Rankings
Ranking Based On Selection: 41
Giridhar Mudduluru
Gene Regulation
Metastasis
Clinical Cancer Research
Drug Discovery
Translation Research
Metrics
H-Index
i10 Index
Citation
23
26
3,028
* Rankings
Ranking Based On Selection: 44
Mark Hoffman
EHR
digital phenotyping
genomics
public health
bioinformatics
Metrics
H-Index
i10 Index
Citation
22
39
1,580
* Rankings
Ranking Based On Selection: 46
Dan Heruth
Transcriptomics
Genetics
NAD+ Metabolism
Rheumatology
Hepatotoxicity Endocrinology
Metrics
H-Index
i10 Index
Citation
22
35
1,495
* Rankings
Ranking Based On Selection: 49
Dustin Wallace
Chronic pain
intensive treatment
psychological flexibility
mindfulness
parenting
Metrics
H-Index
i10 Index
Citation
21
27
1,748
* Rankings
Ranking Based On Selection: 50
Vivekanand Yadav
Neuro-Oncology
Glioblastoma
Diffuse intrinsic pontine glioma (DIPG) Diffuse midline gliomaH3 K27M-mutant (DMG) Immune Therapy
Metrics
H-Index
i10 Index
Citation
21
31
1,433
* Rankings
Ranking Based On Selection: 51
R Scott Duncan
Neuroprotection
neuroinflammation
oxidative stress
calcium signaling
neurotropic viruses
Metrics
H-Index
i10 Index
Citation
21
26
1,197
* Rankings
Ranking Based On Selection: 55
Sherwin Chan
Radiology
Biomedical Engineering
Doppler Ultrasound
Ultrasound Elastography
Cardiac MRI
Metrics
H-Index
i10 Index
Citation
19
30
1,426
* Rankings
Ranking Based On Selection: 56
Dana M Bakula
Pediatric Psychology
Pediatric Feeding
Parent Mental Health
Metrics
H-Index
i10 Index
Citation
19
26
1,153
* Rankings
Ranking Based On Selection: 63
Emily A. Hurley
Patient-provider communication
international health
sub-Saharan Africa
mixed-methods research
Metrics
H-Index
i10 Index
Citation
18
30
1,273
* Rankings
Ranking Based On Selection: 64
John M Rosen
Pediatric Gastroenterology
Chronic Abdominal Pain
Gastrointestinal Dysmotility
Metrics
H-Index
i10 Index
Citation
18
25
946
* Rankings
Ranking Based On Selection: 67
Nathan Artz
Medical Physics
Magnetic Resonance Imaging
MR Imaging Near Metallic Implants
MR-based Water-Fat Imaging
Metrics
H-Index
i10 Index
Citation
18
25
1,099
* Rankings
Ranking Based On Selection: 76
Ana Sa Cohen
genetic diagnostics
rare diseases
overgrowth syndromes
gene discovery
data sharing
Metrics
H-Index
i10 Index
Citation
16
18
1,174
* Rankings
Ranking Based On Selection: 77
Jeremy R. Garrett
Bioethics
Philosophy of Medicine
Ethical Theory
Social & Political Philosophy
Metrics
H-Index
i10 Index
Citation
16
26
1,338
* Rankings
Ranking Based On Selection: 81
Sean Riordan
Alzheimer's Disease
Dementia
Coronary Artery Disease
Metrics
H-Index
i10 Index
Citation
15
16
1,193
* Rankings
Ranking Based On Selection: 83
David Sutcliffe
Pediatric Cardiology
Heart Failure
Ventricular Assist Device
Heart Transplant
Metrics
H-Index
i10 Index
Citation
14
18
1,070
* Rankings
Ranking Based On Selection: 88
Rana E El Feghaly
antibiotic stewardship
quality improvement
Metrics
H-Index
i10 Index
Citation
14
17
932
* Rankings
Ranking Based On Selection: 89
Shilpa Babbar
Yoga
pregnancy
meditation
pranayama
prenatal
Metrics
H-Index
i10 Index
Citation
14
16
961
* Rankings
Ranking Based On Selection: 92
Earl F Glynn
data science
scientific computing
bioinformatics
medical devices
software engineering
Metrics
H-Index
i10 Index
Citation
14
18
2,652
* Rankings
Ranking Based On Selection: 93
Kai Ling Kong
Infant obesity
nutrition
eating behaviors
Metrics
H-Index
i10 Index
Citation
14
16
596
* Rankings
Ranking Based On Selection: 96
Jordan T. Jones
Down syndrome-associated Arthritis and hypermobile Ehlers Danlos syndrome
Metrics
H-Index
i10 Index
Citation
13
23
583
* Rankings
Ranking Based On Selection: 98
Diana Ferro
data science
free radical biology
bioinformatics
pediatrics
diabetes
Metrics
H-Index
i10 Index
Citation
13
13
527
Rankings
Ranking Based On Selection: 1
Tom Curran
Metrics
H-Index
i10 Index
Citation Counts
130
257
76,324
Rankings
Ranking Based On Selection: 2
J Steven Leeder
Metrics
H-Index
i10 Index
Citation Counts
81
244
27,049
Pharmacogenetics
Pharmacogenomics
Pediatric Clinical Pharmacology
Drug Metabolism
Adverse Drug Reactions
Rankings
Ranking Based On Selection: 3
Shawn St. Peter
Metrics
H-Index
i10 Index
Citation Counts
73
375
23,045
Rankings
Ranking Based On Selection: 4
Tomi Pastinen
Metrics
H-Index
i10 Index
Citation Counts
69
167
27,533
Rankings
Ranking Based On Selection: 5
Alan Gamis
Metrics
H-Index
i10 Index
Citation Counts
57
148
10,075
Rankings
Ranking Based On Selection: 7
Elin Grundberg
Metrics
H-Index
i10 Index
Citation Counts
55
95
22,727
Rankings
Ranking Based On Selection: 8
Shui Qing Ye
Metrics
H-Index
i10 Index
Citation Counts
46
77
8,509
Rankings
Ranking Based On Selection: 9
Paul Grabb
Metrics
H-Index
i10 Index
Citation Counts
43
82
5,660
Rankings
Ranking Based On Selection: 10
Jordan A. Carlson
Metrics
H-Index
i10 Index
Citation Counts
40
94
6,488
Physical activity measurement
epidemiology
and interventions

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Rankings
Ranking Based On Selection: 11
Mary Denise Dowd
Metrics
H-Index
i10 Index
Citation Counts
40
88
6,293
injury prevention
violence prevention
social determinants of health
Rankings
Ranking Based On Selection: 12
Girish Shirali
Metrics
H-Index
i10 Index
Citation Counts
39
83
6,616
Congenital heart disease
echocardiography
Rankings
Ranking Based On Selection: 13
Hung-Wen Yeh
Metrics
H-Index
i10 Index
Citation Counts
37
82
5,629
Rankings
Ranking Based On Selection: 14
Brian S. Carter
Metrics
H-Index
i10 Index
Citation Counts
36
95
5,368
Rankings
Ranking Based On Selection: 15
Jason Fraser
Metrics
H-Index
i10 Index
Citation Counts
34
74
3,534
Pediatric Surgery
Bariatric Surgery
Minimally Invasive Surgery
Rankings
Ranking Based On Selection: 16
Uttam Garg
Metrics
H-Index
i10 Index
Citation Counts
34
97
7,655
Rankings
Ranking Based On Selection: 17
Ibrahim Ahmed
Metrics
H-Index
i10 Index
Citation Counts
32
64
3,283
Rankings
Ranking Based On Selection: 18
Gary Douglas Myers
Metrics
H-Index
i10 Index
Citation Counts
32
41
11,349
Rankings
Ranking Based On Selection: 19
Mark Connelly
Metrics
H-Index
i10 Index
Citation Counts
32
60
3,602
Rankings
Ranking Based On Selection: 20
Vincent Staggs
Metrics
H-Index
i10 Index
Citation Counts
31
80
3,083
Biostatistics
Health Services Research
Mental Health Care
Rankings
Ranking Based On Selection: 21
Robin Paul Shook
Metrics
H-Index
i10 Index
Citation Counts
31
61
3,343
Physical activity
obesity
cardiovascular disease
energy balance
Rankings
Ranking Based On Selection: 22
Craig A Friesen
Metrics
H-Index
i10 Index
Citation Counts
31
74
3,181
Rankings
Ranking Based On Selection: 23
Scott Olitsky
Metrics
H-Index
i10 Index
Citation Counts
31
62
3,740
Rankings
Ranking Based On Selection: 24
Todd Bradley
Metrics
H-Index
i10 Index
Citation Counts
28
37
2,980
Rankings
Ranking Based On Selection: 25
William P. Adelman
Metrics
H-Index
i10 Index
Citation Counts
28
37
6,246
Rankings
Ranking Based On Selection: 26
James E O'Brien, Jr
Metrics
H-Index
i10 Index
Citation Counts
28
37
3,576
Rankings
Ranking Based On Selection: 27
Geetha Raghuveer
Metrics
H-Index
i10 Index
Citation Counts
27
40
3,747
Rankings
Ranking Based On Selection: 28
David Juang
Metrics
H-Index
i10 Index
Citation Counts
27
45
2,479
Rankings
Ranking Based On Selection: 29
Jennifer Verrill Schurman
Metrics
H-Index
i10 Index
Citation Counts
27
55
2,450
Rankings
Ranking Based On Selection: 30
John Papagiannis
Metrics
H-Index
i10 Index
Citation Counts
27
44
3,333
Medicine
Pediatrics
Pediatric Cardiology
Congenital heart disease
Electrophysiology
Rankings
Ranking Based On Selection: 31
Jennifer Goldman
Metrics
H-Index
i10 Index
Citation Counts
26
59
2,434
Rankings
Ranking Based On Selection: 32
Kristin Stegenga
Metrics
H-Index
i10 Index
Citation Counts
26
45
2,017
Rankings
Ranking Based On Selection: 33
Scott Younger
Metrics
H-Index
i10 Index
Citation Counts
25
32
3,648
Genomics
Gene Regulation
Gene Expression
Genome Engineering
Rankings
Ranking Based On Selection: 34
Zohreh Talebizadeh
Metrics
H-Index
i10 Index
Citation Counts
25
31
3,485
Autism
Genetics
Epigenetic
Patient-Centered Outcomes Research
Rankings
Ranking Based On Selection: 35
Rebecca Rentea
Metrics
H-Index
i10 Index
Citation Counts
24
55
2,002
Rankings
Ranking Based On Selection: 36
Thomas Mario Attard
Metrics
H-Index
i10 Index
Citation Counts
24
43
2,228
Rankings
Ranking Based On Selection: 37
Timothy Apodaca
Metrics
H-Index
i10 Index
Citation Counts
24
34
3,030
motivational interviewing
mechanisms of behavior change
adolescent substance abuse
Rankings
Ranking Based On Selection: 38
Jessica L. Bettenhausen
Metrics
H-Index
i10 Index
Citation Counts
23
35
1,383
Rankings
Ranking Based On Selection: 39
Mukta Sharma
Metrics
H-Index
i10 Index
Citation Counts
23
39
2,772
Rankings
Ranking Based On Selection: 40
Shannon L. Carpenter
Metrics
H-Index
i10 Index
Citation Counts
23
35
2,712
Rankings
Ranking Based On Selection: 41
Giridhar Mudduluru
Metrics
H-Index
i10 Index
Citation Counts
23
26
3,028
Gene Regulation
Metastasis
Clinical Cancer Research
Drug Discovery
Translation Research
Rankings
Ranking Based On Selection: 42
Warren A. Cheung
Metrics
H-Index
i10 Index
Citation Counts
22
35
4,081
Rankings
Ranking Based On Selection: 43
John M. Perry
Metrics
H-Index
i10 Index
Citation Counts
22
26
3,654
Rankings
Ranking Based On Selection: 44
Mark Hoffman
Metrics
H-Index
i10 Index
Citation Counts
22
39
1,580
EHR
digital phenotyping
genomics
public health
bioinformatics
Rankings
Ranking Based On Selection: 45
Rebecca Mclennan
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,892
Rankings
Ranking Based On Selection: 46
Dan Heruth
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,495
Transcriptomics
Genetics
NAD+ Metabolism
Rheumatology
Hepatotoxicity Endocrinology
Rankings
Ranking Based On Selection: 47
Yun Yan
Metrics
H-Index
i10 Index
Citation Counts
22
28
2,455
Rankings
Ranking Based On Selection: 48
Taeju Park
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,695
Rankings
Ranking Based On Selection: 49
Dustin Wallace
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,748
Chronic pain
intensive treatment
psychological flexibility
mindfulness
parenting
Rankings
Ranking Based On Selection: 50
Vivekanand Yadav
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,433
Neuro-Oncology
Glioblastoma
Diffuse intrinsic pontine glioma (DIPG) Diffuse midline gliomaH3 K27M-mutant (DMG) Immune Therapy
Rankings
Ranking Based On Selection: 51
R Scott Duncan
Metrics
H-Index
i10 Index
Citation Counts
21
26
1,197
Neuroprotection
neuroinflammation
oxidative stress
calcium signaling
neurotropic viruses
Rankings
Ranking Based On Selection: 52
Rebecca J. Johnson
Metrics
H-Index
i10 Index
Citation Counts
20
27
1,878
Rankings
Ranking Based On Selection: 53
Meredith Dreyer Gillette
Metrics
H-Index
i10 Index
Citation Counts
20
27
1,495
Rankings
Ranking Based On Selection: 54
Eric T Rush
Metrics
H-Index
i10 Index
Citation Counts
19
33
1,553
Rankings
Ranking Based On Selection: 55
Sherwin Chan
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,426
Radiology
Biomedical Engineering
Doppler Ultrasound
Ultrasound Elastography
Cardiac MRI
Rankings
Ranking Based On Selection: 56
Dana M Bakula
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,153
Pediatric Psychology
Pediatric Feeding
Parent Mental Health
Rankings
Ranking Based On Selection: 57
Zarmina Ehsan
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,380
Rankings
Ranking Based On Selection: 58
Joseph Alaimo
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,009
Rankings
Ranking Based On Selection: 59
Gabriel Converse
Metrics
H-Index
i10 Index
Citation Counts
19
30
2,101
Rankings
Ranking Based On Selection: 60
Keith August
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,751
Rankings
Ranking Based On Selection: 61
Alain Cuna
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,214
Rankings
Ranking Based On Selection: 62
Carl F Schreck
Metrics
H-Index
i10 Index
Citation Counts
18
25
2,046
Rankings
Ranking Based On Selection: 63
Emily A. Hurley
Metrics
H-Index
i10 Index
Citation Counts
18
30
1,273
Patient-provider communication
international health
sub-Saharan Africa
mixed-methods research
Rankings
Ranking Based On Selection: 64
John M Rosen
Metrics
H-Index
i10 Index
Citation Counts
18
25
946
Pediatric Gastroenterology
Chronic Abdominal Pain
Gastrointestinal Dysmotility
Rankings
Ranking Based On Selection: 65
David G. Ingram
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,104
Rankings
Ranking Based On Selection: 66
Daniel Forsha
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,005
Rankings
Ranking Based On Selection: 67
Nathan Artz
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,099
Medical Physics
Magnetic Resonance Imaging
MR Imaging Near Metallic Implants
MR-based Water-Fat Imaging
Rankings
Ranking Based On Selection: 68
Brian M Wicklund
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,563
Rankings
Ranking Based On Selection: 70
Erin Guest
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,198
Infant leukemia
cancer genomics
cancer predisposition
Rankings
Ranking Based On Selection: 71
Ryan Fischer
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,858
Rankings
Ranking Based On Selection: 73
Chengpeng Bi
Metrics
H-Index
i10 Index
Citation Counts
17
23
867
Bioinformatics
artificial intelligence
medical informatics
Rankings
Ranking Based On Selection: 74
Henry T Puls
Metrics
H-Index
i10 Index
Citation Counts
16
21
772
Rankings
Ranking Based On Selection: 75
Janelle Noel-Macdonnell
Metrics
H-Index
i10 Index
Citation Counts
16
20
690
Statistics/Biostatistics
Pediatrics
Health Outcomes
Rankings
Ranking Based On Selection: 76
Ana Sa Cohen
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,174
genetic diagnostics
rare diseases
overgrowth syndromes
gene discovery
data sharing
Rankings
Ranking Based On Selection: 77
Jeremy R. Garrett
Metrics
H-Index
i10 Index
Citation Counts
16
26
1,338
Bioethics
Philosophy of Medicine
Ethical Theory
Social & Political Philosophy
Rankings
Ranking Based On Selection: 78
Paul Hibbing
Metrics
H-Index
i10 Index
Citation Counts
15
23
1,337
Rankings
Ranking Based On Selection: 79
Craig Smail
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,175
Rankings
Ranking Based On Selection: 80
Jean-Baptiste Le Pichon
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,010
Pediatric neurology
neurogenetics
epilepsy
hyperbilirubinemia
Rankings
Ranking Based On Selection: 81
Sean Riordan
Metrics
H-Index
i10 Index
Citation Counts
15
16
1,193
Alzheimer's Disease
Dementia
Coronary Artery Disease
Rankings
Ranking Based On Selection: 82
Weijie Li
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,405
hematopathology
flow cytometry
leukemia
lymphoma
Rankings
Ranking Based On Selection: 83
David Sutcliffe
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,070
Pediatric Cardiology
Heart Failure
Ventricular Assist Device
Heart Transplant
Rankings
Ranking Based On Selection: 84
Brooke Sweeney
Metrics
H-Index
i10 Index
Citation Counts
14
18
836
Rankings
Ranking Based On Selection: 86
Jessica L. Markham
Metrics
H-Index
i10 Index
Citation Counts
14
19
697
Rankings
Ranking Based On Selection: 87
Valentina Shakhnovich
Metrics
H-Index
i10 Index
Citation Counts
14
18
761
Rankings
Ranking Based On Selection: 88
Rana E El Feghaly
Metrics
H-Index
i10 Index
Citation Counts
14
17
932
antibiotic stewardship
quality improvement
Rankings
Ranking Based On Selection: 89
Shilpa Babbar
Metrics
H-Index
i10 Index
Citation Counts
14
16
961
Yoga
pregnancy
meditation
pranayama
prenatal
Rankings
Ranking Based On Selection: 90
Erin Boone
Metrics
H-Index
i10 Index
Citation Counts
14
16
592
Rankings
Ranking Based On Selection: 91
Michael Lypka
Metrics
H-Index
i10 Index
Citation Counts
14
23
941
Rankings
Ranking Based On Selection: 92
Earl F Glynn
Metrics
H-Index
i10 Index
Citation Counts
14
18
2,652
data science
scientific computing
bioinformatics
medical devices
software engineering
Rankings
Ranking Based On Selection: 93
Kai Ling Kong
Metrics
H-Index
i10 Index
Citation Counts
14
16
596
Infant obesity
nutrition
eating behaviors
Rankings
Ranking Based On Selection: 94
Jennifer Marshall
Metrics
H-Index
i10 Index
Citation Counts
14
15
629
Rankings
Ranking Based On Selection: 95
Florencia Del Viso
Metrics
H-Index
i10 Index
Citation Counts
14
14
1,004
disease
developmental biology
cell biology
molecular biology
Rankings
Ranking Based On Selection: 96
Jordan T. Jones
Metrics
H-Index
i10 Index
Citation Counts
13
23
583
Down syndrome-associated Arthritis and hypermobile Ehlers Danlos syndrome
Rankings
Ranking Based On Selection: 97
Adrienne G Deporre
Metrics
H-Index
i10 Index
Citation Counts
13
14
691
Rankings
Ranking Based On Selection: 98
Diana Ferro
Metrics
H-Index
i10 Index
Citation Counts
13
13
527
data science
free radical biology
bioinformatics
pediatrics
diabetes
Rankings
Ranking Based On Selection: 99
Dithi Banerjee
Metrics
H-Index
i10 Index
Citation Counts
13
17
1,101
clinical microbiology
virology
viral immune response
Rankings
Ranking Based On Selection: 100
Bridgette Jones
Metrics
H-Index
i10 Index
Citation Counts
13
18
669