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 :2
Richard Keefe
cognitive assessment
neuropsychology
schizophrenia
CNS disorders
clinical trials methodology
Metrics
H-Index
i10 Index
Citation
112
311
58,419
* Rankings
Ranking Based On Selection :3
Edward D Levin
Neurobehavioral Pharmacology and Toxicology
Metrics
H-Index
i10 Index
Citation
103
384
39,563
* Rankings
Ranking Based On Selection :4
Bernard J Carroll
Psychiatry
Psychoendocrinology
Psychopharmacology
Rating Scales
Metrics
H-Index
i10 Index
Citation
80
244
26,508
Li Tzy Wu
addiction
opioid use disorder treatment
epidemiology
clinical trials
comorbidity
Metrics
H-Index
i10 Index
Citation
65
173
13,807
Patrick S Calhoun
PTSD
tobacco cessation
substance misuse
Metrics
H-Index
i10 Index
Citation
59
178
12,931
* Rankings
Ranking Based On Selection :10
James D Lane
behavioral medicine
caffeine
stress
diabetes
cardiovascular disease
Metrics
H-Index
i10 Index
Citation
48
75
7,625
* Rankings
Ranking Based On Selection :11
Moria J Smoski
Emotion regulation
reward
depression
aging
Metrics
H-Index
i10 Index
Citation
45
64
12,839
* Rankings
Ranking Based On Selection :14
Nagy Youssef
Mood Disorders & PTSD
Brain stimulation and epigentics
Metrics
H-Index
i10 Index
Citation
36
61
4,877
* Rankings
Ranking Based On Selection :16
Mira Brancu
PTSD
post-deployment mental health
Veterans
Metrics
H-Index
i10 Index
Citation
28
45
2,430
Katherine Ramos
Aging
Palliative Psychology
EOL and Serious
Life-limiting illness
Late-Life Anxiety and Depression
Metrics
H-Index
i10 Index
Citation
19
29
1,368
Michele M Easter
Medical Sociology
Behavioral Health Services Research
Policy-relevant research
Metrics
H-Index
i10 Index
Citation
18
20
1,783
Takahiro Soda
Autism Spectrum Disorder
Psychiatry
Implementation
Genetics
Translational Neuroscience
Metrics
H-Index
i10 Index
Citation
13
16
1,856
Michelle S Franklin
developmental disabilities
intellectual disability
health disparities
health policy
mental health
Metrics
H-Index
i10 Index
Citation
5
1
108
Mariah K Evans
Posttraumatic stress
substance use
nonsuicidal self-injury
genomics
neuropsychology
Metrics
H-Index
i10 Index
Citation
4
2
62
Franz Belz
psychiatry
community psychiatry
mental health services
psychology
public health
Metrics
H-Index
i10 Index
Citation
2
1
29
J Kathy Xie
child development
aging
life course
epidemiology
Metrics
H-Index
i10 Index
Citation
1
0
5
Rankings
Ranking Based On Selection: 1
Dan Blazer
Metrics
H-Index
i10 Index
Citation Counts
161
602
121,485
Rankings
Ranking Based On Selection: 2
Richard Keefe
Metrics
H-Index
i10 Index
Citation Counts
112
311
58,419
cognitive assessment
neuropsychology
schizophrenia
CNS disorders
clinical trials methodology
Rankings
Ranking Based On Selection: 3
Edward D Levin
Metrics
H-Index
i10 Index
Citation Counts
103
384
39,563
Rankings
Ranking Based On Selection: 4
Bernard J Carroll
Metrics
H-Index
i10 Index
Citation Counts
80
244
26,508
Psychiatry
Psychoendocrinology
Psychopharmacology
Rating Scales
Rankings
Ranking Based On Selection: 5
H Ryan Wagner
Metrics
H-Index
i10 Index
Citation Counts
74
151
20,109
Rankings
Ranking Based On Selection: 6
Li Tzy Wu
Metrics
H-Index
i10 Index
Citation Counts
65
173
13,807
addiction
opioid use disorder treatment
epidemiology
clinical trials
comorbidity
Rankings
Ranking Based On Selection: 7
Patrick S Calhoun
Metrics
H-Index
i10 Index
Citation Counts
59
178
12,931
Rankings
Ranking Based On Selection: 8
F Joseph Mcclernon|Francis McClernon, Joseph McClernon, FJ McClernon
Metrics
H-Index
i10 Index
Citation Counts
56
151
11,120
tobacco use
fMRI
epidemiology
regulatory science
Rankings
Ranking Based On Selection: 9
Richard D Weiner
Metrics
H-Index
i10 Index
Citation Counts
56
137
12,499
Rankings
Ranking Based On Selection: 10
James D Lane
Metrics
H-Index
i10 Index
Citation Counts
48
75
7,625
behavioral medicine
caffeine
stress
diabetes
cardiovascular disease
Rankings
Ranking Based On Selection: 11
Moria J Smoski
Metrics
H-Index
i10 Index
Citation Counts
45
64
12,839
Rankings
Ranking Based On Selection: 12
Scott Moore
Metrics
H-Index
i10 Index
Citation Counts
44
84
6,615
Rankings
Ranking Based On Selection: 13
L Gregory Appelbaum
Metrics
H-Index
i10 Index
Citation Counts
39
65
5,390
Rankings
Ranking Based On Selection: 14
Nagy Youssef
Metrics
H-Index
i10 Index
Citation Counts
36
61
4,877
Mood Disorders & PTSD
Brain stimulation and epigentics
Rankings
Ranking Based On Selection: 15
R Alison Adcock
Metrics
H-Index
i10 Index
Citation Counts
36
51
8,126
Rankings
Ranking Based On Selection: 16
Mira Brancu
Metrics
H-Index
i10 Index
Citation Counts
28
45
2,430
Rankings
Ranking Based On Selection: 17
Gordon Paul Keeler
Metrics
H-Index
i10 Index
Citation Counts
28
32
17,115
Rankings
Ranking Based On Selection: 18
Joseph G Winger
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,382
Rankings
Ranking Based On Selection: 19
Katherine Ramos
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,368
Aging
Palliative Psychology
EOL and Serious
Life-limiting illness
Late-Life Anxiety and Depression
Rankings
Ranking Based On Selection: 20
Michele M Easter
Metrics
H-Index
i10 Index
Citation Counts
18
20
1,783
Medical Sociology
Behavioral Health Services Research
Policy-relevant research
Rankings
Ranking Based On Selection: 21
Takahiro Soda
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,856
Autism Spectrum Disorder
Psychiatry
Implementation
Genetics
Translational Neuroscience
Rankings
Ranking Based On Selection: 22
Bayazit Huseyin
Metrics
H-Index
i10 Index
Citation Counts
12
13
477
Rankings
Ranking Based On Selection: 23
Peter Nicholls
Metrics
H-Index
i10 Index
Citation Counts
11
11
645
Rankings
Ranking Based On Selection: 24
Michelle S Franklin
Metrics
H-Index
i10 Index
Citation Counts
5
1
108
developmental disabilities
intellectual disability
health disparities
health policy
mental health
Rankings
Ranking Based On Selection: 25
Ethan T Whitman
Metrics
H-Index
i10 Index
Citation Counts
5
1
65
Rankings
Ranking Based On Selection: 26
Mariah K Evans
Metrics
H-Index
i10 Index
Citation Counts
4
2
62
Posttraumatic stress
substance use
nonsuicidal self-injury
genomics
neuropsychology
Rankings
Ranking Based On Selection: 27
Franz Belz
Metrics
H-Index
i10 Index
Citation Counts
2
1
29
psychiatry
community psychiatry
mental health services
psychology
public health
Rankings
Ranking Based On Selection: 28
J Kathy Xie
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
child development
aging
life course
epidemiology