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" (870,057 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
Patricia A Thomas
cancer
cytology
health disparities
biomarkers
pathology
Metrics
H-Index
i10 Index
Citation
63
267
21,517
* Rankings
Ranking Based On Selection: 2
Ossama Tawfik
Pathology
cytopathology
digital pathology
tumor markers
immunohistochemistry
Metrics
H-Index
i10 Index
Citation
58
178
11,527
* Rankings
Ranking Based On Selection: 3
Steven F Warren
developmental disabilities
language and communication development and intervention
autism
fragile x disorder
Down syndrome
Metrics
H-Index
i10 Index
Citation
56
136
13,206
* Rankings
Ranking Based On Selection: 4
X Long Zheng
Thrombosis
Haemostasis
Thrombotic Microangiopathy
Metrics
H-Index
i10 Index
Citation
53
110
10,138
Garth Fraga
dermatopathology
nonmelanoma skin cancer
evidence based medicine
histology
Metrics
H-Index
i10 Index
Citation
17
39
971
Rankings
Ranking Based On Selection: 1
Patricia A Thomas
Metrics
H-Index
i10 Index
Citation Counts
63
267
21,517
cancer
cytology
health disparities
biomarkers
pathology
Rankings
Ranking Based On Selection: 2
Ossama Tawfik
Metrics
H-Index
i10 Index
Citation Counts
58
178
11,527
Pathology
cytopathology
digital pathology
tumor markers
immunohistochemistry
Rankings
Ranking Based On Selection: 3
Steven F Warren
Metrics
H-Index
i10 Index
Citation Counts
56
136
13,206
developmental disabilities
language and communication development and intervention
autism
fragile x disorder
Down syndrome
Rankings
Ranking Based On Selection: 4
X Long Zheng
Metrics
H-Index
i10 Index
Citation Counts
53
110
10,138
Thrombosis
Haemostasis
Thrombotic Microangiopathy
Rankings
Ranking Based On Selection: 5
Jonathan Brumberg
Metrics
H-Index
i10 Index
Citation Counts
20
31
2,806
Rankings
Ranking Based On Selection: 6
Tiffany Johnson
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,865
Rankings
Ranking Based On Selection: 7
Garth Fraga
Metrics
H-Index
i10 Index
Citation Counts
17
39
971
dermatopathology
nonmelanoma skin cancer
evidence based medicine
histology
Rankings
Ranking Based On Selection: 8
Chien Hung Yeh
Metrics
H-Index
i10 Index
Citation Counts
7
7
918