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.

Tushar Vachharajani
Dialysis Vascular Access
Interventional Nephrology
Metrics
H-Index
i10 Index
Citation
33
70
5,686
Doaa Attia|Ph.D.(c)
Clinical Outcomes Research
Internal Medicine
Cardiology
Hematology-Oncology
Vascular
Metrics
H-Index
i10 Index
Citation
31
63
6,074
Stephen Dombrowski
neurology/neurosurgery research
pediatric brain tumor
hydrocephalus
Chiari
Metrics
H-Index
i10 Index
Citation
22
29
5,225
Pravin George
neurology
stroke neurology
neurocritical care
Metrics
H-Index
i10 Index
Citation
12
13
526
Rankings
Ranking Based On Selection: 1
James Leverenz
Metrics
H-Index
i10 Index
Citation Counts
102
246
47,047
Rankings
Ranking Based On Selection: 2
Richard J Lederman
Metrics
H-Index
i10 Index
Citation Counts
41
71
5,371
Rankings
Ranking Based On Selection: 3
Tushar Vachharajani
Metrics
H-Index
i10 Index
Citation Counts
33
70
5,686
Dialysis Vascular Access
Interventional Nephrology
Rankings
Ranking Based On Selection: 4
Doaa Attia|Ph.D.(c)
Metrics
H-Index
i10 Index
Citation Counts
31
63
6,074
Clinical Outcomes Research
Internal Medicine
Cardiology
Hematology-Oncology
Vascular
Rankings
Ranking Based On Selection: 5
Nicolas Thompson
Metrics
H-Index
i10 Index
Citation Counts
28
72
2,787
Rankings
Ranking Based On Selection: 6
Gregory W Rutecki
Metrics
H-Index
i10 Index
Citation Counts
25
42
3,734
Rankings
Ranking Based On Selection: 7
Stephen Dombrowski
Metrics
H-Index
i10 Index
Citation Counts
22
29
5,225
neurology/neurosurgery research
pediatric brain tumor
hydrocephalus
Chiari
Rankings
Ranking Based On Selection: 8
Yuebing Li
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,779
Rankings
Ranking Based On Selection: 9
Ather Taqui
Metrics
H-Index
i10 Index
Citation Counts
17
23
2,493
Rankings
Ranking Based On Selection: 10
Carrie Hersh
Metrics
H-Index
i10 Index
Citation Counts
16
22
885
Rankings
Ranking Based On Selection: 11
Pravin George
Metrics
H-Index
i10 Index
Citation Counts
12
13
526
Rankings
Ranking Based On Selection: 12
Mohamad Hanouneh
Metrics
H-Index
i10 Index
Citation Counts
11
14
542
Rankings
Ranking Based On Selection: 13
Shane A Bobart
Metrics
H-Index
i10 Index
Citation Counts
10
12
1,458
Rankings
Ranking Based On Selection: 14
Silvia Neme-Mercante
Metrics
H-Index
i10 Index
Citation Counts
8
8
713
Rankings
Ranking Based On Selection: 15
Bushra Syed
Metrics
H-Index
i10 Index
Citation Counts
1
1
17