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: 4
Sara Jo Nixon
neurocognition
neuropsychology
neurophysiology
Metrics
H-Index
i10 Index
Citation
56
136
13,103
Glenn W Currier
Psychiatry
Emergency Medicine
Health Services Research
Metrics
H-Index
i10 Index
Citation
42
68
11,314
Brian Nelson Giunta
Neuroimmunology
Brain Aging
Antiretroviral Therapies
Metrics
H-Index
i10 Index
Citation
40
58
5,318
Ben Lewis
addiction
alcohol
cognitive psychology
neuroscience
psychopharmacology
Metrics
H-Index
i10 Index
Citation
21
34
1,251

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Joseph E Thornton
Medical Ethics
Emergency Psychiatry
Suicide Prevention
Metrics
H-Index
i10 Index
Citation
16
19
781
Melanie Mcdiarmid Nelson
clinical child psychology
disruptive behavior
preschoolers
ADHD
Metrics
H-Index
i10 Index
Citation
14
15
4,766
Matthew Phillip Abrams
psychiatry
addiction
medical education
peer support
health equity
Metrics
H-Index
i10 Index
Citation
9
9
369
Chu J Hsiao
Biocultural Anthropology
Developmental Origins of Health
Epigenetic Mechanisms
Psychiatry
Metrics
H-Index
i10 Index
Citation
7
4
147
Sheryl B Fleisch
homelessness
housing
psychiatry
consultation-liaison psychiatry
Metrics
H-Index
i10 Index
Citation
7
5
496
Carol Lewis
trauma
resilience
public behavioral health
health equity
Metrics
H-Index
i10 Index
Citation
4
3
99
Benjamin R Phalin
neuropsychology
neurocognitive effects of substances
traumatic brain injury
neurocognitive impairment
substance use disorder
Metrics
H-Index
i10 Index
Citation
2
2
1,180
Natasha A Tracy
psychiatry
public health
social determinants of health
health disparities
refugees
Metrics
H-Index
i10 Index
Citation
2
1
34
Jody Brown
ADHD
Student Mental Health
Child & Adolescent Psychiatry
Metrics
H-Index
i10 Index
Citation
2
0
9
Rankings
Ranking Based On Selection: 1
David V Sheehan
Metrics
H-Index
i10 Index
Citation Counts
94
353
72,789
Rankings
Ranking Based On Selection: 2
Jun Tan
Metrics
H-Index
i10 Index
Citation Counts
75
161
18,620
Rankings
Ranking Based On Selection: 3
David A Chiriboga
Metrics
H-Index
i10 Index
Citation Counts
59
164
13,102
Rankings
Ranking Based On Selection: 4
Sara Jo Nixon
Metrics
H-Index
i10 Index
Citation Counts
56
136
13,103
neurocognition
neuropsychology
neurophysiology
Rankings
Ranking Based On Selection: 5
Barry Setlow
Metrics
H-Index
i10 Index
Citation Counts
55
103
11,410
Rankings
Ranking Based On Selection: 6
Regina Bussing
Metrics
H-Index
i10 Index
Citation Counts
48
93
8,908
Rankings
Ranking Based On Selection: 7
Glenn W Currier
Metrics
H-Index
i10 Index
Citation Counts
42
68
11,314
Psychiatry
Emergency Medicine
Health Services Research
Rankings
Ranking Based On Selection: 8
Brian Nelson Giunta
Metrics
H-Index
i10 Index
Citation Counts
40
58
5,318
Neuroimmunology
Brain Aging
Antiretroviral Therapies
Rankings
Ranking Based On Selection: 9
Ben Lewis
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,251
addiction
alcohol
cognitive psychology
neuroscience
psychopharmacology
Rankings
Ranking Based On Selection: 10
Damon G Lamb
Metrics
H-Index
i10 Index
Citation Counts
20
32
2,551

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Joseph E Thornton
Metrics
H-Index
i10 Index
Citation Counts
16
19
781
Medical Ethics
Emergency Psychiatry
Suicide Prevention
Rankings
Ranking Based On Selection: 12
Melanie Mcdiarmid Nelson
Metrics
H-Index
i10 Index
Citation Counts
14
15
4,766
clinical child psychology
disruptive behavior
preschoolers
ADHD
Rankings
Ranking Based On Selection: 13
Matthew Phillip Abrams
Metrics
H-Index
i10 Index
Citation Counts
9
9
369
psychiatry
addiction
medical education
peer support
health equity
Rankings
Ranking Based On Selection: 14
Chu J Hsiao
Metrics
H-Index
i10 Index
Citation Counts
7
4
147
Biocultural Anthropology
Developmental Origins of Health
Epigenetic Mechanisms
Psychiatry
Rankings
Ranking Based On Selection: 15
Thea Moore
Metrics
H-Index
i10 Index
Citation Counts
7
5
623
psychiatry
pharmacy
mental health
women's health
Rankings
Ranking Based On Selection: 16
Sheryl B Fleisch
Metrics
H-Index
i10 Index
Citation Counts
7
5
496
homelessness
housing
psychiatry
consultation-liaison psychiatry
Rankings
Ranking Based On Selection: 17
Carol Lewis
Metrics
H-Index
i10 Index
Citation Counts
4
3
99
trauma
resilience
public behavioral health
health equity
Rankings
Ranking Based On Selection: 18
Brent R Carr
Metrics
H-Index
i10 Index
Citation Counts
3
0
22
Rankings
Ranking Based On Selection: 19
Anuja Shah Mehta
Metrics
H-Index
i10 Index
Citation Counts
3
2
60
Rankings
Ranking Based On Selection: 20
Benjamin R Phalin
Metrics
H-Index
i10 Index
Citation Counts
2
2
1,180
neuropsychology
neurocognitive effects of substances
traumatic brain injury
neurocognitive impairment
substance use disorder
Rankings
Ranking Based On Selection: 21
Natasha A Tracy
Metrics
H-Index
i10 Index
Citation Counts
2
1
34
psychiatry
public health
social determinants of health
health disparities
refugees
Rankings
Ranking Based On Selection: 22
Ana Turner
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Rankings
Ranking Based On Selection: 23
Jody Brown
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
ADHD
Student Mental Health
Child & Adolescent Psychiatry
Rankings
Ranking Based On Selection: 24
Kishan Nallapula
Metrics
H-Index
i10 Index
Citation Counts
1
0
9
Rankings
Ranking Based On Selection: 25
Michelle Jacobs-Elliott
Metrics
H-Index
i10 Index
Citation Counts
1
0
8