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 :1
John H Sampson
Neurosurgery
Immunotherapy
Neuro-oncology
Immunology
Metrics
H-Index
i10 Index
Citation
106
317
40,312
Gonzalez Lf
Cerebral aneurysms
Stroke
AV fistulas
AVM
carotid disease
Metrics
H-Index
i10 Index
Citation
63
162
10,949
Steve Keir
Brain Tumors
Translational Research
Preclinical Drug Screening
Metrics
H-Index
i10 Index
Citation
58
135
18,261
Michael Haglund
epilepsy
cervical spine disease
global health
Metrics
H-Index
i10 Index
Citation
56
144
11,173
Shivanand Nandan
Neurosurgery
Biomaterials
Health Outcomes
Innovation
Metrics
H-Index
i10 Index
Citation
55
151
9,766
* Rankings
Ranking Based On Selection :11
Gao Zhang
Cancer Systems Biology
Cancer Metabolism
Therapeutic Resistance
Brain Metastasis
Metrics
H-Index
i10 Index
Citation
44
66
10,423
* Rankings
Ranking Based On Selection :12
Pavan Kumar Shetty Ampar
Duke University
Durham VA Medical Center
Neurosurgery Division
Metrics
H-Index
i10 Index
Citation
42
193
12,646
Pakawat Chongsathidkiet
Brain Tumor Immunotherapy
Neurosurgery
Neuro-oncology
Metrics
H-Index
i10 Index
Citation
22
30
2,972
Chester Yarbrough
Neurosurgery
Neurological Surgery
Spine Surgery
Neuro-oncology
Clinical Research
Metrics
H-Index
i10 Index
Citation
22
36
1,624
Andrew Hardigan
Neurosurgery
Brain Tumor immunotherapy
Genetics and Genomics
Metrics
H-Index
i10 Index
Citation
15
18
948
Jordan M Komisarow
Neurosurgery
Brain Tumor
Critical Care Medicine
Metrics
H-Index
i10 Index
Citation
13
19
1,329
Stephen M Bergin
Neurosurgery
Spine Surgery
Cancer Immunotherapy
Immunometabolics
Metrics
H-Index
i10 Index
Citation
13
16
2,890
David Aw Sykes
Neurosurgery
Spine
Neuroscience
Technology
Biochemistry
Metrics
H-Index
i10 Index
Citation
7
6
166
Daniel P Sexton
Pediatric neurosurgery
epilepsy
artificial intelligence
machine learning
Metrics
H-Index
i10 Index
Citation
5
2
95
Rankings
Ranking Based On Selection: 1
John H Sampson
Metrics
H-Index
i10 Index
Citation Counts
106
317
40,312
Neurosurgery
Immunotherapy
Neuro-oncology
Immunology
Rankings
Ranking Based On Selection: 2
Timothy Wang
Metrics
H-Index
i10 Index
Citation Counts
84
347
64,072
Rankings
Ranking Based On Selection: 3
Dennis A Turner
Metrics
H-Index
i10 Index
Citation Counts
64
145
23,017
Rankings
Ranking Based On Selection: 4
Gonzalez Lf
Metrics
H-Index
i10 Index
Citation Counts
63
162
10,949
Cerebral aneurysms
Stroke
AV fistulas
AVM
carotid disease
Rankings
Ranking Based On Selection: 5
Steve Keir
Metrics
H-Index
i10 Index
Citation Counts
58
135
18,261
Brain Tumors
Translational Research
Preclinical Drug Screening
Rankings
Ranking Based On Selection: 6
Michael Haglund
Metrics
H-Index
i10 Index
Citation Counts
56
144
11,173
Rankings
Ranking Based On Selection: 7
Ali Osman Francis
Metrics
H-Index
i10 Index
Citation Counts
56
116
10,682
Rankings
Ranking Based On Selection: 8
Shivanand Nandan
Metrics
H-Index
i10 Index
Citation Counts
55
151
9,766
Neurosurgery
Biomaterials
Health Outcomes
Innovation
Rankings
Ranking Based On Selection: 9
Peter E Fecci
Metrics
H-Index
i10 Index
Citation Counts
46
88
11,502
Rankings
Ranking Based On Selection: 10
Oren N Gottfried
Metrics
H-Index
i10 Index
Citation Counts
46
99
6,702
Rankings
Ranking Based On Selection: 11
Gao Zhang
Metrics
H-Index
i10 Index
Citation Counts
44
66
10,423
Cancer Systems Biology
Cancer Metabolism
Therapeutic Resistance
Brain Metastasis
Rankings
Ranking Based On Selection: 12
Pavan Kumar Shetty Ampar
Metrics
H-Index
i10 Index
Citation Counts
42
193
12,646
Duke University
Durham VA Medical Center
Neurosurgery Division
Rankings
Ranking Based On Selection: 13
Luis Sanchez Perez
Metrics
H-Index
i10 Index
Citation Counts
42
63
7,642
Rankings
Ranking Based On Selection: 14
Ranjith Babu
Metrics
H-Index
i10 Index
Citation Counts
33
60
3,797
Rankings
Ranking Based On Selection: 15
Eric M Thompson
Metrics
H-Index
i10 Index
Citation Counts
25
42
2,423
Rankings
Ranking Based On Selection: 16
Pakawat Chongsathidkiet
Metrics
H-Index
i10 Index
Citation Counts
22
30
2,972
Brain Tumor Immunotherapy
Neurosurgery
Neuro-oncology
Rankings
Ranking Based On Selection: 17
Chester Yarbrough
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,624
Neurosurgery
Neurological Surgery
Spine Surgery
Neuro-oncology
Clinical Research
Rankings
Ranking Based On Selection: 18
Shervin Rahimpour
Metrics
H-Index
i10 Index
Citation Counts
21
27
1,522
Rankings
Ranking Based On Selection: 19
Andrew Hardigan
Metrics
H-Index
i10 Index
Citation Counts
15
18
948
Neurosurgery
Brain Tumor immunotherapy
Genetics and Genomics
Rankings
Ranking Based On Selection: 20
Syed M Adil
Metrics
H-Index
i10 Index
Citation Counts
14
19
588
Rankings
Ranking Based On Selection: 21
Jordan M Komisarow
Metrics
H-Index
i10 Index
Citation Counts
13
19
1,329
Neurosurgery
Brain Tumor
Critical Care Medicine
Rankings
Ranking Based On Selection: 22
Stephen M Bergin
Metrics
H-Index
i10 Index
Citation Counts
13
16
2,890
Neurosurgery
Spine Surgery
Cancer Immunotherapy
Immunometabolics
Rankings
Ranking Based On Selection: 23
David Aw Sykes
Metrics
H-Index
i10 Index
Citation Counts
7
6
166
Neurosurgery
Spine
Neuroscience
Technology
Biochemistry
Rankings
Ranking Based On Selection: 24
Weston Ross
Metrics
H-Index
i10 Index
Citation Counts
6
3
117
Rankings
Ranking Based On Selection: 25
Sully F Chen|Sully Chen
Metrics
H-Index
i10 Index
Citation Counts
5
5
6,346
Rankings
Ranking Based On Selection: 26
Daniel P Sexton
Metrics
H-Index
i10 Index
Citation Counts
5
2
95
Pediatric neurosurgery
epilepsy
artificial intelligence
machine learning