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
James Hill
Obesity
nutrition
exercise science
behavioral science
Metrics
H-Index
i10 Index
Citation
169
703
191,619
* Rankings
Ranking Based On Selection :4
Darley Usmar
bioenergetics
nitric oxide
redox biology
mitochondria
lipid peroxidation
Metrics
H-Index
i10 Index
Citation
123
362
51,339
* Rankings
Ranking Based On Selection :10
Stephen Barnes
bile acids
isoflavones
mass spectrometry
cancer
lens cataracts
Metrics
H-Index
i10 Index
Citation
103
326
42,180
* Rankings
Ranking Based On Selection :12
Anindya Dutta
Molecular Biology
Cancer
Genome stability
Non-coding RNAs
Metrics
H-Index
i10 Index
Citation
101
214
48,237
* Rankings
Ranking Based On Selection :16
David Briles
bacterial vaccines
bacterial pathogenesis
Metrics
H-Index
i10 Index
Citation
95
306
27,260
* Rankings
Ranking Based On Selection :18
Christine A Curcio
age-related macular degeneration
aging
retinal pathology
clinical image validation
neurobiology
Metrics
H-Index
i10 Index
Citation
91
229
35,592
* Rankings
Ranking Based On Selection :25
Robert Bourge
Pulmonary Arterial Hypertension
Congestive Heart Failure
Heart and Lung Transplantation
Mechanical Circulatory Support
Metrics
H-Index
i10 Index
Citation
80
207
34,466
* Rankings
Ranking Based On Selection :31
Vladimir Parpura
astrocytes
exocytosis
astrocytoma
gliotransmission
Metrics
H-Index
i10 Index
Citation
76
188
27,598
* Rankings
Ranking Based On Selection :33
Sergey Vyazovkin
physical chemistry
kinetics
polymers
pharmaceuticals
Metrics
H-Index
i10 Index
Citation
72
163
31,045
* Rankings
Ranking Based On Selection :36
Erik Roberson
Alzheimer's Disease
Frontotemporal Dementia
Metrics
H-Index
i10 Index
Citation
68
137
27,101
* Rankings
Ranking Based On Selection :38
Sumanth D Prabhu
Heart Failure and Cardiovascular Disease
Metrics
H-Index
i10 Index
Citation
67
157
17,086
* Rankings
Ranking Based On Selection :39
Goepfert Pa
HIV T cell immunology and vaccines
Metrics
H-Index
i10 Index
Citation
67
149
21,206
* Rankings
Ranking Based On Selection :41
Jeanne Marrazzo
STI
biomedical HIV Prevention
human microbiome
Metrics
H-Index
i10 Index
Citation
66
173
18,715
* Rankings
Ranking Based On Selection :45
Jason Nichols Od
Cornea
Contact Lenses
Dry Eye Disease
Meibomian Gland Dysfunction
Metrics
H-Index
i10 Index
Citation
65
165
21,031
* Rankings
Ranking Based On Selection :47
Volanakis Je
First interest
Second interest
CRP
Complement.
Metrics
H-Index
i10 Index
Citation
65
151
15,622
* Rankings
Ranking Based On Selection :48
Michael Niederweis
Outer Membrane Proteins
Tuberculosis
Bacterial Toxins
Metal Biology
Nanopore Technology
Metrics
H-Index
i10 Index
Citation
64
119
13,788
* Rankings
Ranking Based On Selection :52
Kelly K Nichols Od Faao
dry eye
meibomian gland dysfunction
Metrics
H-Index
i10 Index
Citation
61
131
21,046
* Rankings
Ranking Based On Selection :54
Janet Molzan Turan
stigma and discrimination
sexual and reproductive health
women's health
maternal and child health
Metrics
H-Index
i10 Index
Citation
60
170
12,858
* Rankings
Ranking Based On Selection :57
Lloyd J Edwards
biostatistics
mixed models
model selection
longitudinal data
Metrics
H-Index
i10 Index
Citation
56
98
10,920
* Rankings
Ranking Based On Selection :59
Thomas Buford
Geroscience
Exercise Medicine
Healthspan
Translational Science
Team Science
Metrics
H-Index
i10 Index
Citation
55
136
14,634
* Rankings
Ranking Based On Selection :61
James Collawn
cystic fibrosis
endocytosis
hypoxia
unfolded protein response
Metrics
H-Index
i10 Index
Citation
55
116
10,784
* Rankings
Ranking Based On Selection :63
Adrienne C Lahti
Professor
Division Director of Behavioral Neurobiology
Metrics
H-Index
i10 Index
Citation
54
129
12,225
* Rankings
Ranking Based On Selection :67
Joshua Richman
surgical outcomes
epidemiology
biostatistics
Metrics
H-Index
i10 Index
Citation
53
162
20,627
* Rankings
Ranking Based On Selection :68
Carlos J Orihuela
Streptococcus pneumoniae pathogenesis
Metrics
H-Index
i10 Index
Citation
53
99
9,084
* Rankings
Ranking Based On Selection :69
J Crawford Downs
Ocular Biomechanics
Glaucoma
IOP Telemetry
Ocular Imaging
Metrics
H-Index
i10 Index
Citation
53
95
10,255
* Rankings
Ranking Based On Selection :71
Gitendra Uswatte
rehabilitation
stroke
motor recovery
ambulatory monitoring
positive psychology
Metrics
H-Index
i10 Index
Citation
53
88
17,198
* Rankings
Ranking Based On Selection :83
Robert C Reynolds
medicinal chemistry
drug design and synthesis
antitubercular drug design
Metrics
H-Index
i10 Index
Citation
51
111
8,284
* Rankings
Ranking Based On Selection :87
David M Bedwell
Molecular Biology
Translation
mRNA Turnover
Nonsense Supression
Metrics
H-Index
i10 Index
Citation
50
80
8,875
* Rankings
Ranking Based On Selection :92
Rui Ming Liu
aging
IPF
Alzheimer's disease
Metrics
H-Index
i10 Index
Citation
49
65
8,519
* Rankings
Ranking Based On Selection :94
Sejong Bae
Cancer
Health Disparities
Clinical Trials
Biomarker
Biostatsitics
Metrics
H-Index
i10 Index
Citation
48
135
9,760
* Rankings
Ranking Based On Selection :97
Sergey Mirov
Laser Physics
Middle-Infrared Tunable Lasers
Laser Spectrsocopy
Laser Materials
Metrics
H-Index
i10 Index
Citation
48
183
9,444
* Rankings
Ranking Based On Selection :99
Muhammad Maqbool
Physics
Health Physics
Optics
Materials Science
Photonics
Metrics
H-Index
i10 Index
Citation
47
166
8,717
Rankings
Ranking Based On Selection: 1
James Hill
Metrics
H-Index
i10 Index
Citation Counts
169
703
191,619
Obesity
nutrition
exercise science
behavioral science
Rankings
Ranking Based On Selection: 2
Paul Muntner
Metrics
H-Index
i10 Index
Citation Counts
143
629
179,795
Rankings
Ranking Based On Selection: 3
George Howard
Metrics
H-Index
i10 Index
Citation Counts
129
540
88,403
Rankings
Ranking Based On Selection: 4
Darley Usmar
Metrics
H-Index
i10 Index
Citation Counts
123
362
51,339
bioenergetics
nitric oxide
redox biology
mitochondria
lipid peroxidation
Rankings
Ranking Based On Selection: 5
Waldemar Carlo
Metrics
H-Index
i10 Index
Citation Counts
118
482
67,196
Rankings
Ranking Based On Selection: 6
Robert Motl
Metrics
H-Index
i10 Index
Citation Counts
114
607
52,134
Rankings
Ranking Based On Selection: 7
David G Standaert
Metrics
H-Index
i10 Index
Citation Counts
105
255
40,296
Rankings
Ranking Based On Selection: 8
Smita Bhatia
Metrics
H-Index
i10 Index
Citation Counts
104
355
37,247
Rankings
Ranking Based On Selection: 9
Peter Pappas
Metrics
H-Index
i10 Index
Citation Counts
104
234
71,541
Rankings
Ranking Based On Selection: 10
Stephen Barnes
Metrics
H-Index
i10 Index
Citation Counts
103
326
42,180
bile acids
isoflavones
mass spectrometry
cancer
lens cataracts
Rankings
Ranking Based On Selection: 11
Jeffrey Curtis
Metrics
H-Index
i10 Index
Citation Counts
102
491
52,972
Rankings
Ranking Based On Selection: 12
Anindya Dutta
Metrics
H-Index
i10 Index
Citation Counts
101
214
48,237
Molecular Biology
Cancer
Genome stability
Non-coding RNAs
Rankings
Ranking Based On Selection: 13
Victor Thannickal
Metrics
H-Index
i10 Index
Citation Counts
100
225
42,583
Rankings
Ranking Based On Selection: 14
Seth Landefeld
Metrics
H-Index
i10 Index
Citation Counts
100
167
39,972
Rankings
Ranking Based On Selection: 15
David Schwebel
Metrics
H-Index
i10 Index
Citation Counts
96
287
219,223
Rankings
Ranking Based On Selection: 16
David Briles
Metrics
H-Index
i10 Index
Citation Counts
95
306
27,260
bacterial vaccines
bacterial pathogenesis
Rankings
Ranking Based On Selection: 17
Herbert Chen
Metrics
H-Index
i10 Index
Citation Counts
92
459
35,597
Rankings
Ranking Based On Selection: 18
Christine A Curcio
Metrics
H-Index
i10 Index
Citation Counts
91
229
35,592
age-related macular degeneration
aging
retinal pathology
clinical image validation
neurobiology
Rankings
Ranking Based On Selection: 19
Casey T Weaver
Metrics
H-Index
i10 Index
Citation Counts
84
142
48,972
Rankings
Ranking Based On Selection: 21
JP Segrest
Metrics
H-Index
i10 Index
Citation Counts
82
185
22,644
Rankings
Ranking Based On Selection: 22
Rakesh Patel
Metrics
H-Index
i10 Index
Citation Counts
81
231
26,760
Rankings
Ranking Based On Selection: 23
Anupam Agarwal *
Metrics
H-Index
i10 Index
Citation Counts
80
271
35,112
Rankings
Ranking Based On Selection: 24
Karlene Ball
Metrics
H-Index
i10 Index
Citation Counts
80
141
31,241
Rankings
Ranking Based On Selection: 25
Robert Bourge
Metrics
H-Index
i10 Index
Citation Counts
80
207
34,466
Pulmonary Arterial Hypertension
Congestive Heart Failure
Heart and Lung Transplantation
Mechanical Circulatory Support
Rankings
Ranking Based On Selection: 26
Elliot J Lefkowitz
Metrics
H-Index
i10 Index
Citation Counts
79
192
31,391
Rankings
Ranking Based On Selection: 27
James Cimino
Metrics
H-Index
i10 Index
Citation Counts
79
347
26,755
Rankings
Ranking Based On Selection: 28
Jerzy Szaflarski
Metrics
H-Index
i10 Index
Citation Counts
78
263
22,716
Rankings
Ranking Based On Selection: 29
John F Kearney
Metrics
H-Index
i10 Index
Citation Counts
78
211
31,362
Rankings
Ranking Based On Selection: 30
S Austad
Metrics
H-Index
i10 Index
Citation Counts
77
182
22,048
Rankings
Ranking Based On Selection: 31
Vladimir Parpura
Metrics
H-Index
i10 Index
Citation Counts
76
188
27,598
astrocytes
exocytosis
astrocytoma
gliotransmission
Rankings
Ranking Based On Selection: 32
Ralph Sanderson
Metrics
H-Index
i10 Index
Citation Counts
76
123
17,022
Rankings
Ranking Based On Selection: 33
Sergey Vyazovkin
Metrics
H-Index
i10 Index
Citation Counts
72
163
31,045
physical chemistry
kinetics
polymers
pharmaceuticals
Rankings
Ranking Based On Selection: 34
Joanne Murphy Ullrich
Metrics
H-Index
i10 Index
Citation Counts
72
126
20,243
Rankings
Ranking Based On Selection: 35
Randy Cron
Metrics
H-Index
i10 Index
Citation Counts
71
199
19,945
Rankings
Ranking Based On Selection: 36
Erik Roberson
Metrics
H-Index
i10 Index
Citation Counts
68
137
27,101
Alzheimer's Disease
Frontotemporal Dementia
Rankings
Ranking Based On Selection: 37
Jianhua Zhang *
Metrics
H-Index
i10 Index
Citation Counts
67
136
29,664
autophagy
lysosomes
aging
mitochondria
O-GlcNAc
Rankings
Ranking Based On Selection: 38
Sumanth D Prabhu
Metrics
H-Index
i10 Index
Citation Counts
67
157
17,086
Heart Failure and Cardiovascular Disease
Rankings
Ranking Based On Selection: 39
Goepfert Pa
Metrics
H-Index
i10 Index
Citation Counts
67
149
21,206
HIV T cell immunology and vaccines
Rankings
Ranking Based On Selection: 40
Louis B Nabors
Metrics
H-Index
i10 Index
Citation Counts
66
144
17,007
Rankings
Ranking Based On Selection: 41
Jeanne Marrazzo
Metrics
H-Index
i10 Index
Citation Counts
66
173
18,715
STI
biomedical HIV Prevention
human microbiome
Rankings
Ranking Based On Selection: 42
Timothy R Levine
Metrics
H-Index
i10 Index
Citation Counts
66
149
15,663
Deception
Deception Detection
Interpersonal Communication
Rankings
Ranking Based On Selection: 43
Robert Gaston
Metrics
H-Index
i10 Index
Citation Counts
66
132
15,241
Rankings
Ranking Based On Selection: 44
Gerhard Stefan Hellemann
Metrics
H-Index
i10 Index
Citation Counts
65
159
14,673
Rankings
Ranking Based On Selection: 45
Jason Nichols Od
Metrics
H-Index
i10 Index
Citation Counts
65
165
21,031
Cornea
Contact Lenses
Dry Eye Disease
Meibomian Gland Dysfunction
Rankings
Ranking Based On Selection: 46
Isam Eltoum
Metrics
H-Index
i10 Index
Citation Counts
65
171
15,036
Rankings
Ranking Based On Selection: 47
Volanakis Je
Metrics
H-Index
i10 Index
Citation Counts
65
151
15,622
First interest
Second interest
CRP
Complement.
Rankings
Ranking Based On Selection: 48
Michael Niederweis
Metrics
H-Index
i10 Index
Citation Counts
64
119
13,788
Outer Membrane Proteins
Tuberculosis
Bacterial Toxins
Metal Biology
Nanopore Technology
Rankings
Ranking Based On Selection: 49
Thomas T Norton
Metrics
H-Index
i10 Index
Citation Counts
63
118
11,865
Rankings
Ranking Based On Selection: 50
Paul Sanders
Metrics
H-Index
i10 Index
Citation Counts
62
147
11,929
Rankings
Ranking Based On Selection: 51
J Michael Wyss
Metrics
H-Index
i10 Index
Citation Counts
62
178
14,582
Rankings
Ranking Based On Selection: 52
Kelly K Nichols Od Faao
Metrics
H-Index
i10 Index
Citation Counts
61
131
21,046
dry eye
meibomian gland dysfunction
Rankings
Ranking Based On Selection: 53
C Ryan Miller
Metrics
H-Index
i10 Index
Citation Counts
61
114
29,132
Rankings
Ranking Based On Selection: 54
Janet Molzan Turan
Metrics
H-Index
i10 Index
Citation Counts
60
170
12,858
stigma and discrimination
sexual and reproductive health
women's health
maternal and child health
Rankings
Ranking Based On Selection: 55
Barry P Sleckman
Metrics
H-Index
i10 Index
Citation Counts
60
123
15,210
Rankings
Ranking Based On Selection: 56
Alexander J Szalai
Metrics
H-Index
i10 Index
Citation Counts
57
111
10,451
Rankings
Ranking Based On Selection: 57
Lloyd J Edwards
Metrics
H-Index
i10 Index
Citation Counts
56
98
10,920
biostatistics
mixed models
model selection
longitudinal data
Rankings
Ranking Based On Selection: 58
Andrew Westfall
Metrics
H-Index
i10 Index
Citation Counts
56
125
15,021
Rankings
Ranking Based On Selection: 59
Thomas Buford
Metrics
H-Index
i10 Index
Citation Counts
55
136
14,634
Geroscience
Exercise Medicine
Healthspan
Translational Science
Team Science
Rankings
Ranking Based On Selection: 60
Bradford A Woodworth
Metrics
H-Index
i10 Index
Citation Counts
55
158
10,446
Rankings
Ranking Based On Selection: 61
James Collawn
Metrics
H-Index
i10 Index
Citation Counts
55
116
10,784
cystic fibrosis
endocytosis
hypoxia
unfolded protein response
Rankings
Ranking Based On Selection: 62
David E Vance
Metrics
H-Index
i10 Index
Citation Counts
54
195
11,128
Rankings
Ranking Based On Selection: 63
Adrienne C Lahti
Metrics
H-Index
i10 Index
Citation Counts
54
129
12,225
Professor
Division Director of Behavioral Neurobiology
Rankings
Ranking Based On Selection: 64
Heith Copes
Metrics
H-Index
i10 Index
Citation Counts
54
113
7,951
Rankings
Ranking Based On Selection: 65
J Scott Richards
Metrics
H-Index
i10 Index
Citation Counts
54
106
8,897
Rankings
Ranking Based On Selection: 66
Kelley Pettee Gabriel
Metrics
H-Index
i10 Index
Citation Counts
53
151
9,022
physical activity epidemiology
Rankings
Ranking Based On Selection: 67
Joshua Richman
Metrics
H-Index
i10 Index
Citation Counts
53
162
20,627
surgical outcomes
epidemiology
biostatistics
Rankings
Ranking Based On Selection: 68
Carlos J Orihuela
Metrics
H-Index
i10 Index
Citation Counts
53
99
9,084
Streptococcus pneumoniae pathogenesis
Rankings
Ranking Based On Selection: 69
J Crawford Downs
Metrics
H-Index
i10 Index
Citation Counts
53
95
10,255
Ocular Biomechanics
Glaucoma
IOP Telemetry
Ocular Imaging
Rankings
Ranking Based On Selection: 70
Daniel I Feig
Metrics
H-Index
i10 Index
Citation Counts
53
79
19,691
Rankings
Ranking Based On Selection: 71
Gitendra Uswatte
Metrics
H-Index
i10 Index
Citation Counts
53
88
17,198
rehabilitation
stroke
motor recovery
ambulatory monitoring
positive psychology
Rankings
Ranking Based On Selection: 72
Eugenia Kharlampieva
Metrics
H-Index
i10 Index
Citation Counts
53
105
7,809
stimuli sensitive polymers for drug delivery and cell transplantation
Rankings
Ranking Based On Selection: 73
Paul Gamlin
Metrics
H-Index
i10 Index
Citation Counts
53
89
11,687
Rankings
Ranking Based On Selection: 74
Charles D Amsler
Metrics
H-Index
i10 Index
Citation Counts
53
133
8,484
Rankings
Ranking Based On Selection: 75
Tim R Nagy
Metrics
H-Index
i10 Index
Citation Counts
53
115
10,712
Rankings
Ranking Based On Selection: 76
Chung How Kau
Metrics
H-Index
i10 Index
Citation Counts
52
122
8,947
Rankings
Ranking Based On Selection: 77
Barbara Van Der Pol
Metrics
H-Index
i10 Index
Citation Counts
52
144
10,541
Rankings
Ranking Based On Selection: 78
Lucas Pozzo Miller
Metrics
H-Index
i10 Index
Citation Counts
52
86
11,605
Rankings
Ranking Based On Selection: 79
Ross Holmes
Metrics
H-Index
i10 Index
Citation Counts
52
115
8,761
Rankings
Ranking Based On Selection: 80
Sylvie Mrug
Metrics
H-Index
i10 Index
Citation Counts
51
108
9,692
Rankings
Ranking Based On Selection: 81
Mitchell B Cohen
Metrics
H-Index
i10 Index
Citation Counts
51
117
9,804
Rankings
Ranking Based On Selection: 82
Dmitry Vassylyev
Metrics
H-Index
i10 Index
Citation Counts
51
80
11,326
Protein Crystallography
Biochemistry
Molecular Biology
Rankings
Ranking Based On Selection: 83
Robert C Reynolds
Metrics
H-Index
i10 Index
Citation Counts
51
111
8,284
medicinal chemistry
drug design and synthesis
antitubercular drug design
Rankings
Ranking Based On Selection: 84
Giuseppe L Squadrito
Metrics
H-Index
i10 Index
Citation Counts
51
75
13,932
free radicals
redox biology
Rankings
Ranking Based On Selection: 85
Stella Aslibekyan
Metrics
H-Index
i10 Index
Citation Counts
50
133
14,083
Rankings
Ranking Based On Selection: 86
Isabel C Scarinci
Metrics
H-Index
i10 Index
Citation Counts
50
142
8,683
Cancer prevention and control
Rankings
Ranking Based On Selection: 87
David M Bedwell
Metrics
H-Index
i10 Index
Citation Counts
50
80
8,875
Molecular Biology
Translation
mRNA Turnover
Nonsense Supression
Rankings
Ranking Based On Selection: 88
Rosa Serra
Metrics
H-Index
i10 Index
Citation Counts
50
78
7,789
Rankings
Ranking Based On Selection: 89
James Henry Willig
Metrics
H-Index
i10 Index
Citation Counts
49
122
9,716
Rankings
Ranking Based On Selection: 90
Lalita Shevde
Metrics
H-Index
i10 Index
Citation Counts
49
91
9,729
Rankings
Ranking Based On Selection: 91
Rajeev S Samant
Metrics
H-Index
i10 Index
Citation Counts
49
85
7,584
Rankings
Ranking Based On Selection: 92
Rui Ming Liu
Metrics
H-Index
i10 Index
Citation Counts
49
65
8,519
aging
IPF
Alzheimer's disease
Rankings
Ranking Based On Selection: 93
David O Freedman
Metrics
H-Index
i10 Index
Citation Counts
49
96
12,083
Rankings
Ranking Based On Selection: 94
Sejong Bae
Metrics
H-Index
i10 Index
Citation Counts
48
135
9,760
Cancer
Health Disparities
Clinical Trials
Biomarker
Biostatsitics
Rankings
Ranking Based On Selection: 95
Liz Worthey
Metrics
H-Index
i10 Index
Citation Counts
48
87
11,823
Rankings
Ranking Based On Selection: 96
James Austin Mobley
Metrics
H-Index
i10 Index
Citation Counts
48
90
8,193
Rankings
Ranking Based On Selection: 97
Sergey Mirov
Metrics
H-Index
i10 Index
Citation Counts
48
183
9,444
Laser Physics
Middle-Infrared Tunable Lasers
Laser Spectrsocopy
Laser Materials
Rankings
Ranking Based On Selection: 98
Veronika Kozlovskaya
Metrics
H-Index
i10 Index
Citation Counts
48
85
6,469
Rankings
Ranking Based On Selection: 99
Muhammad Maqbool
Metrics
H-Index
i10 Index
Citation Counts
47
166
8,717
Physics
Health Physics
Optics
Materials Science
Photonics
Rankings
Ranking Based On Selection: 100
Mark N Prichard
Metrics
H-Index
i10 Index
Citation Counts
47
120
9,093
antiviral
herpesvirus
polyomavirus
papillomavirus
adenovirus