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" (873,690 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
Bruce Lanphear
Lead poisoning
pediatrics
children's environmental health
prevention
environmental epidemiology
Metrics
H-Index
i10 Index
Citation
104
338
49,035
* Rankings
Ranking Based On Selection: 2
Kevin S Douglas
Forensic Psychology
Violence
Risk Assessment
Psychopathy
Metrics
H-Index
i10 Index
Citation
67
145
20,145
* Rankings
Ranking Based On Selection: 3
Diane Finegood
systems thinking
complexity
public health
health systems
Metrics
H-Index
i10 Index
Citation
61
106
25,366
* Rankings
Ranking Based On Selection: 5
Zabrina Brumme
HIV
molecular virology
immunology
epidemiology
evolution
Metrics
H-Index
i10 Index
Citation
58
176
13,399
* Rankings
Ranking Based On Selection: 6
M Joffres
Epidemiology
Public Health
Prevention
Hypertension
Metrics
H-Index
i10 Index
Citation
58
105
39,409
* Rankings
Ranking Based On Selection: 7
Meghan Winters
Population Health
Active Transportation
Built Environment
GIS
Metrics
H-Index
i10 Index
Citation
52
138
10,881
* Rankings
Ranking Based On Selection: 8
Valorie Crooks
health geography
medical tourism
retirement migration
informal caregiving
health services
Metrics
H-Index
i10 Index
Citation
51
155
8,969
* Rankings
Ranking Based On Selection: 10
Habib Chaudhury
Environmental Gerontology
Design for People with Dementia
Environment and Active Living
Metrics
H-Index
i10 Index
Citation
45
93
7,642

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: 12
Theodore D Cosco
psychology
psychometrics
mental health
life course epidemiology
Metrics
H-Index
i10 Index
Citation
42
80
9,735
* Rankings
Ranking Based On Selection: 14
Jeremy Snyder
Ethics
Applied Ethics
Public Health Ethics
Bioethics
Business Ethics
Metrics
H-Index
i10 Index
Citation
40
105
6,245
* Rankings
Ranking Based On Selection: 15
Urs Ribary
Neuroscience
Brain Imaging
Cognition
Cognitive Disabilities
Neurology/ Psychiatry
Metrics
H-Index
i10 Index
Citation
39
69
11,464
* Rankings
Ranking Based On Selection: 16
Ryan Cn D Arcy
neuroscience
neuroimaging
medical devices
Metrics
H-Index
i10 Index
Citation
38
90
3,941
* Rankings
Ranking Based On Selection: 19
Gloria Gutman
Gerontology
disasters
health promotion
housing
elder abuse
Metrics
H-Index
i10 Index
Citation
29
67
3,384
* Rankings
Ranking Based On Selection: 20
Lawrence Mccandless
Biostatistics
Epidemiology
Environmental Health
Metrics
H-Index
i10 Index
Citation
28
52
3,064
* Rankings
Ranking Based On Selection: 21
Atiya Mahmood
Environmental Gerontology
Active Aging
Environment Behavior Studies
Aging and Environment
Neighbourhood Design and Walkabili
Metrics
H-Index
i10 Index
Citation
25
42
2,950
* Rankings
Ranking Based On Selection: 22
Amy Hy Lee
Microbiology
pathogenesis
bacterial genomics
systems immunology
Metrics
H-Index
i10 Index
Citation
24
44
2,301
* Rankings
Ranking Based On Selection: 23
Dustin King
Biochemistry
Proteomics
Microbiology
Chemical Biology
Metrics
H-Index
i10 Index
Citation
24
30
2,479
* Rankings
Ranking Based On Selection: 25
Shoaleh Bigdeli
Gamification in medical education
Curriculum development
Adult learning (F2F
Virtual and Blended)
Metrics
H-Index
i10 Index
Citation
21
35
1,227
* Rankings
Ranking Based On Selection: 27
Ruth Lavergne
health services research
primary health care
access to care
Metrics
H-Index
i10 Index
Citation
21
41
1,260
* Rankings
Ranking Based On Selection: 30
Sharon Koehn
aging
diversity
ethnicity
immigrant health
health care access
Metrics
H-Index
i10 Index
Citation
19
25
1,333
* Rankings
Ranking Based On Selection: 33
Aïcha Bentaieb
Histopathology
Machine Learning
Medical Image Analysis
Computer Vision
Molecular Imaging
Metrics
H-Index
i10 Index
Citation
16
16
1,356
* Rankings
Ranking Based On Selection: 34
Eunice H Chin
physiology
evolution
carryover effects
fetal programming
Metrics
H-Index
i10 Index
Citation
15
18
1,293
* Rankings
Ranking Based On Selection: 35
Md Zulfiquar Ali Bhotto
Computational Healthcare
Computational Sustainability
Machine Learning
Adaptive Filters
Image and Speech Processing
Metrics
H-Index
i10 Index
Citation
13
18
795
* Rankings
Ranking Based On Selection: 36
Shahram Amiri
Medical Device Design & Development
Intra-operative Imaging
Orthopedic Biomechanics
Metrics
H-Index
i10 Index
Citation
13
15
470
Peter Payne
Pathology
Lung Cancer
Cancer Screening
medical imaging
Metrics
H-Index
i10 Index
Citation
9
8
782
Andrew Longhurst
Health Policy
Health Services
Public Finance
Geographical Political Economy
Policy Mobilities
Metrics
H-Index
i10 Index
Citation
8
6
167
Eireann O'Dea
Healthy aging
culture and aging
volunteering
Metrics
H-Index
i10 Index
Citation
6
4
127
Cassandra Mah
public health
population health
policy
health economics
social determinants of health
Metrics
H-Index
i10 Index
Citation
4
1
38
Avantika Vashisht
Gerontology
Health Promotion
Medicine
Palliative Care
Metrics
H-Index
i10 Index
Citation
3
0
20
Becca Wood
drug policy
violence against women
sexual violence
intimate partner violence.
Metrics
H-Index
i10 Index
Citation
2
1
23
Cari Randa
aging
older adult mental health
long-term care
palliative care
deathcare
Metrics
H-Index
i10 Index
Citation
2
1
20
Yan Lin Lim
Forensic psychology
psychopathic personality disorder
risk assessment
threat assessment
Metrics
H-Index
i10 Index
Citation
1
1
762
Rankings
Ranking Based On Selection: 1
Bruce Lanphear
Metrics
H-Index
i10 Index
Citation Counts
104
338
49,035
Lead poisoning
pediatrics
children's environmental health
prevention
environmental epidemiology
Rankings
Ranking Based On Selection: 2
Kevin S Douglas
Metrics
H-Index
i10 Index
Citation Counts
67
145
20,145
Forensic Psychology
Violence
Risk Assessment
Psychopathy
Rankings
Ranking Based On Selection: 3
Diane Finegood
Metrics
H-Index
i10 Index
Citation Counts
61
106
25,366
Rankings
Ranking Based On Selection: 4
Charlie Goldsmith
Metrics
H-Index
i10 Index
Citation Counts
60
127
15,367
Rankings
Ranking Based On Selection: 5
Zabrina Brumme
Metrics
H-Index
i10 Index
Citation Counts
58
176
13,399
HIV
molecular virology
immunology
epidemiology
evolution
Rankings
Ranking Based On Selection: 6
M Joffres
Metrics
H-Index
i10 Index
Citation Counts
58
105
39,409
Rankings
Ranking Based On Selection: 7
Meghan Winters
Metrics
H-Index
i10 Index
Citation Counts
52
138
10,881
Population Health
Active Transportation
Built Environment
GIS
Rankings
Ranking Based On Selection: 8
Valorie Crooks
Metrics
H-Index
i10 Index
Citation Counts
51
155
8,969
health geography
medical tourism
retirement migration
informal caregiving
health services
Rankings
Ranking Based On Selection: 9
Andrew Sixsmith
Metrics
H-Index
i10 Index
Citation Counts
47
119
9,321
Rankings
Ranking Based On Selection: 10
Habib Chaudhury
Metrics
H-Index
i10 Index
Citation Counts
45
93
7,642
Environmental Gerontology
Design for People with Dementia
Environment and Active Living

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
Andrew Wister
Metrics
H-Index
i10 Index
Citation Counts
45
110
6,613
Rankings
Ranking Based On Selection: 12
Theodore D Cosco
Metrics
H-Index
i10 Index
Citation Counts
42
80
9,735
psychology
psychometrics
mental health
life course epidemiology
Rankings
Ranking Based On Selection: 13
Leslie Maaike Helmus|Leslie Helmus
Metrics
H-Index
i10 Index
Citation Counts
40
72
8,103
Rankings
Ranking Based On Selection: 14
Jeremy Snyder
Metrics
H-Index
i10 Index
Citation Counts
40
105
6,245
Ethics
Applied Ethics
Public Health Ethics
Bioethics
Business Ethics
Rankings
Ranking Based On Selection: 15
Urs Ribary
Metrics
H-Index
i10 Index
Citation Counts
39
69
11,464
Neuroscience
Brain Imaging
Cognition
Cognitive Disabilities
Neurology/ Psychiatry
Rankings
Ranking Based On Selection: 16
Ryan Cn D Arcy
Metrics
H-Index
i10 Index
Citation Counts
38
90
3,941
Rankings
Ranking Based On Selection: 17
Hui Xie
Metrics
H-Index
i10 Index
Citation Counts
35
85
7,068
Rankings
Ranking Based On Selection: 18
Julian Andrew Guttman
Metrics
H-Index
i10 Index
Citation Counts
31
50
4,942
Rankings
Ranking Based On Selection: 19
Gloria Gutman
Metrics
H-Index
i10 Index
Citation Counts
29
67
3,384
Gerontology
disasters
health promotion
housing
elder abuse
Rankings
Ranking Based On Selection: 20
Lawrence Mccandless
Metrics
H-Index
i10 Index
Citation Counts
28
52
3,064
Rankings
Ranking Based On Selection: 21
Atiya Mahmood
Metrics
H-Index
i10 Index
Citation Counts
25
42
2,950
Environmental Gerontology
Active Aging
Environment Behavior Studies
Aging and Environment
Neighbourhood Design and Walkabili
Rankings
Ranking Based On Selection: 22
Amy Hy Lee
Metrics
H-Index
i10 Index
Citation Counts
24
44
2,301
Microbiology
pathogenesis
bacterial genomics
systems immunology
Rankings
Ranking Based On Selection: 23
Dustin King
Metrics
H-Index
i10 Index
Citation Counts
24
30
2,479
Biochemistry
Proteomics
Microbiology
Chemical Biology
Rankings
Ranking Based On Selection: 24
Alissa M Greer
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,315
Rankings
Ranking Based On Selection: 25
Shoaleh Bigdeli
Metrics
H-Index
i10 Index
Citation Counts
21
35
1,227
Gamification in medical education
Curriculum development
Adult learning (F2F
Virtual and Blended)
Rankings
Ranking Based On Selection: 26
Emanuel Krebs
Metrics
H-Index
i10 Index
Citation Counts
21
28
1,118
Rankings
Ranking Based On Selection: 27
Ruth Lavergne
Metrics
H-Index
i10 Index
Citation Counts
21
41
1,260
health services research
primary health care
access to care
Rankings
Ranking Based On Selection: 28
Katrina Salvante
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,430
Rankings
Ranking Based On Selection: 29
Michael J Trimble
Metrics
H-Index
i10 Index
Citation Counts
19
23
2,104
Rankings
Ranking Based On Selection: 30
Sharon Koehn
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,333
aging
diversity
ethnicity
immigrant health
health care access
Rankings
Ranking Based On Selection: 31
Lindsay Hedden
Metrics
H-Index
i10 Index
Citation Counts
18
34
1,134
Rankings
Ranking Based On Selection: 32
Mohamed Fouda
Metrics
H-Index
i10 Index
Citation Counts
18
36
949
Rankings
Ranking Based On Selection: 33
Aïcha Bentaieb
Metrics
H-Index
i10 Index
Citation Counts
16
16
1,356
Histopathology
Machine Learning
Medical Image Analysis
Computer Vision
Molecular Imaging
Rankings
Ranking Based On Selection: 34
Eunice H Chin
Metrics
H-Index
i10 Index
Citation Counts
15
18
1,293
physiology
evolution
carryover effects
fetal programming
Rankings
Ranking Based On Selection: 35
Md Zulfiquar Ali Bhotto
Metrics
H-Index
i10 Index
Citation Counts
13
18
795
Computational Healthcare
Computational Sustainability
Machine Learning
Adaptive Filters
Image and Speech Processing
Rankings
Ranking Based On Selection: 36
Shahram Amiri
Metrics
H-Index
i10 Index
Citation Counts
13
15
470
Medical Device Design & Development
Intra-operative Imaging
Orthopedic Biomechanics
Rankings
Ranking Based On Selection: 37
Peter Payne
Metrics
H-Index
i10 Index
Citation Counts
9
8
782
Pathology
Lung Cancer
Cancer Screening
medical imaging
Rankings
Ranking Based On Selection: 38
Andrew Longhurst
Metrics
H-Index
i10 Index
Citation Counts
8
6
167
Health Policy
Health Services
Public Finance
Geographical Political Economy
Policy Mobilities
Rankings
Ranking Based On Selection: 39
Eireann O'Dea
Metrics
H-Index
i10 Index
Citation Counts
6
4
127
Rankings
Ranking Based On Selection: 40
Cassandra Mah
Metrics
H-Index
i10 Index
Citation Counts
4
1
38
public health
population health
policy
health economics
social determinants of health
Rankings
Ranking Based On Selection: 41
Eric D Kirby
Metrics
H-Index
i10 Index
Citation Counts
4
1
33
Rankings
Ranking Based On Selection: 42
Avantika Vashisht
Metrics
H-Index
i10 Index
Citation Counts
3
0
20
Gerontology
Health Promotion
Medicine
Palliative Care
Rankings
Ranking Based On Selection: 43
Boah Kim
Metrics
H-Index
i10 Index
Citation Counts
3
0
16
Rankings
Ranking Based On Selection: 44
Joseph Mwesigwa Ssendikaddiwa
Metrics
H-Index
i10 Index
Citation Counts
2
2
35
Rankings
Ranking Based On Selection: 45
Iqra Yaseen
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
Rankings
Ranking Based On Selection: 46
Becca Wood
Metrics
H-Index
i10 Index
Citation Counts
2
1
23
drug policy
violence against women
sexual violence
intimate partner violence.
Rankings
Ranking Based On Selection: 47
Cari Randa
Metrics
H-Index
i10 Index
Citation Counts
2
1
20
aging
older adult mental health
long-term care
palliative care
deathcare
Rankings
Ranking Based On Selection: 48
Yan Lin Lim
Metrics
H-Index
i10 Index
Citation Counts
1
1
762
Forensic psychology
psychopathic personality disorder
risk assessment
threat assessment