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 :4
Ian F Dunn
Brain tumors
skull base surgery
pituitary tumors
meningioma
microsurgery
Metrics
H-Index
i10 Index
Citation
67
183
24,486
* Rankings
Ranking Based On Selection :8
Zachary A Smith
Cervical myelopathy
Biomechanics
Minimally Invasive Spine
Neurosurgery
Metrics
H-Index
i10 Index
Citation
47
123
6,687
* Rankings
Ranking Based On Selection :12
William Tierney
Colon cancer screening
pancreatic cancer
pancreatic cysts
gastrointestinal endoscopy
Metrics
H-Index
i10 Index
Citation
42
76
5,702
* Rankings
Ranking Based On Selection :15
Andrew Jea
Pediatric neurosurgery
spine surgery
brachial plexus surgery
peripheral nerve surgery
Metrics
H-Index
i10 Index
Citation
40
177
6,304
* Rankings
Ranking Based On Selection :17
T Kent Teague
Immunology
cell biology
inflammation
mood disorders
depression
Metrics
H-Index
i10 Index
Citation
38
78
6,582
* Rankings
Ranking Based On Selection :20
Zhamak Khorgami
minimally invasive surgery
bariatric surgery
obesity
sleeve gastrectomy
Roux-en-Y gastric bypass
Metrics
H-Index
i10 Index
Citation
35
72
3,792
* Rankings
Ranking Based On Selection :23
Rodney K Edwards
obstetric infections
obesity
abnormal labor and the relationship between those areas
Metrics
H-Index
i10 Index
Citation
32
67
3,323
* Rankings
Ranking Based On Selection :26
Natarajan Aravindan
cancer biology
radiation biology
developmental therapeutics
oxidative stress
Metrics
H-Index
i10 Index
Citation
30
58
2,006
* Rankings
Ranking Based On Selection :28
Michael P Anderson
Bayesian Analysis
High Dimensional Data
Pediatrics
Neonatology
Intra-ventricular Hemorrhage
Metrics
H-Index
i10 Index
Citation
28
46
1,982
* Rankings
Ranking Based On Selection :29
Aaron Wendelboe
epidemiology
disease surveillance
infectious diseases
pertussis
and venous thromboembolism. Bayesian software development
Metrics
H-Index
i10 Index
Citation
28
42
7,315
* Rankings
Ranking Based On Selection :30
Anthony C Johnson
Neurogastroenterology
Gastroenterology
Neuroscience
Neuroendocrinology
Metrics
H-Index
i10 Index
Citation
27
34
2,748
* Rankings
Ranking Based On Selection :37
Norman Hord
Diet
nutrition
dietary nitrate and nitrite
cardiovascular health
performance
Metrics
H-Index
i10 Index
Citation
26
36
4,182
Lurdes Queimado
Oncology
DNA damage and repair
cell signaling
electronic cigarettes
tobacco
Metrics
H-Index
i10 Index
Citation
24
32
2,278
Anish Babu
Biopharmaceutical-QC
Experimental Cancer Therapeutics
Nanomedicine
Drug/Gene delivery
Photodynamic Therapy
Metrics
H-Index
i10 Index
Citation
22
27
2,228
Blake W Palmer
Pediatric Urology
Disorders of Sex Development
Robotic and Minimally Invasive Surgery
Renal Transplantation
Antenatal Care o
Metrics
H-Index
i10 Index
Citation
22
39
1,313
Peter N Johnson
pediatric pharmacy
sedation and analgesia
drug withdrawal
pharmacokinetic alterations in obesity
Metrics
H-Index
i10 Index
Citation
22
44
2,365
Hiroshi Y Yamada
Alzheimer's disease
Medical Oncology
mitosis
chromosome instability
mice
Metrics
H-Index
i10 Index
Citation
20
25
1,868
Christian Amm
craniofacial surgery
plastic reconstructive surgery
craniofacial modeling
Metrics
H-Index
i10 Index
Citation
19
25
1,433
Franklin A Hays
redox biochemistry
ER Stress
nucleoside transport
membrane protein structure
diabetes
Metrics
H-Index
i10 Index
Citation
18
23
3,616
Valerie Eschiti
American Indian cancer disparities
community-based participatory research
Metrics
H-Index
i10 Index
Citation
17
23
1,154
Faizah Bhatti
Retina
developmental vascular biology
retinopathy of prematurity
angiogenesis
neonatology
Metrics
H-Index
i10 Index
Citation
14
16
1,117
Gregory Nkepang
Medicinal Chemistry
Drug Delivery
Photochemistry
Radiopharmaceutical Sciences
Nanotechnology
Metrics
H-Index
i10 Index
Citation
13
15
859
Samrita Dogra
Pharmacology
Neuropharmacology
Gynecological Cancers
Drug target identification & validation
Metrics
H-Index
i10 Index
Citation
13
14
1,502
Vincent Dennis
Pharmacy education
pharmacy practice laboratory skill development
diabetes care and management
Metrics
H-Index
i10 Index
Citation
11
13
321
Rankings
Ranking Based On Selection: 1
Michael Cookson
Metrics
H-Index
i10 Index
Citation Counts
87
231
25,480
Rankings
Ranking Based On Selection: 3
Hongliang Li
Metrics
H-Index
i10 Index
Citation Counts
74
384
33,887
Rankings
Ranking Based On Selection: 4
Ian F Dunn
Metrics
H-Index
i10 Index
Citation Counts
67
183
24,486
Brain tumors
skull base surgery
pituitary tumors
meningioma
microsurgery
Rankings
Ranking Based On Selection: 5
John J Mulvihill
Metrics
H-Index
i10 Index
Citation Counts
67
174
24,591
medical genetics
genomics
medical ethics
human mutation
mentoring
Rankings
Ranking Based On Selection: 6
Stefano Tarantini
Metrics
H-Index
i10 Index
Citation Counts
56
112
9,722
Cardiovascular aging
Vascular cognitive impairment
Senolytics
Rankings
Ranking Based On Selection: 7
Sameer Gopalani
Metrics
H-Index
i10 Index
Citation Counts
54
66
109,771
Rankings
Ranking Based On Selection: 8
Zachary A Smith
Metrics
H-Index
i10 Index
Citation Counts
47
123
6,687
Cervical myelopathy
Biomechanics
Minimally Invasive Spine
Neurosurgery
Rankings
Ranking Based On Selection: 9
Amy B Wisniewski
Metrics
H-Index
i10 Index
Citation Counts
47
88
8,466
Rankings
Ranking Based On Selection: 11
Mark Huycke
Metrics
H-Index
i10 Index
Citation Counts
45
65
10,767
Rankings
Ranking Based On Selection: 12
William Tierney
Metrics
H-Index
i10 Index
Citation Counts
42
76
5,702
Colon cancer screening
pancreatic cancer
pancreatic cysts
gastrointestinal endoscopy
Rankings
Ranking Based On Selection: 13
Peter J Toth
Metrics
H-Index
i10 Index
Citation Counts
41
53
5,901
vascular biology
cerebral circulation
aging
neurosurgery
Rankings
Ranking Based On Selection: 14
Qilong Wang
Metrics
H-Index
i10 Index
Citation Counts
40
95
8,288
Rankings
Ranking Based On Selection: 15
Andrew Jea
Metrics
H-Index
i10 Index
Citation Counts
40
177
6,304
Pediatric neurosurgery
spine surgery
brachial plexus surgery
peripheral nerve surgery
Rankings
Ranking Based On Selection: 16
Yan Daniel Zhao
Metrics
H-Index
i10 Index
Citation Counts
39
128
6,391
Rankings
Ranking Based On Selection: 17
T Kent Teague
Metrics
H-Index
i10 Index
Citation Counts
38
78
6,582
Immunology
cell biology
inflammation
mood disorders
depression
Rankings
Ranking Based On Selection: 18
Zavy Mt
Metrics
H-Index
i10 Index
Citation Counts
38
51
4,086
Clinical reproduction
reproductive physiology
clinical embryology
Rankings
Ranking Based On Selection: 19
Ricardo Saban
Metrics
H-Index
i10 Index
Citation Counts
36
73
4,000
Medical Research
inflammation
lymphatic vessels
cancer
Rankings
Ranking Based On Selection: 20
Zhamak Khorgami
Metrics
H-Index
i10 Index
Citation Counts
35
72
3,792
minimally invasive surgery
bariatric surgery
obesity
sleeve gastrectomy
Roux-en-Y gastric bypass
Rankings
Ranking Based On Selection: 21
Mark Doescher
Metrics
H-Index
i10 Index
Citation Counts
35
57
5,641
Rankings
Ranking Based On Selection: 22
Sanjay G Patel
Metrics
H-Index
i10 Index
Citation Counts
34
69
4,352
Rankings
Ranking Based On Selection: 23
Rodney K Edwards
Metrics
H-Index
i10 Index
Citation Counts
32
67
3,323
obstetric infections
obesity
abnormal labor and the relationship between those areas
Rankings
Ranking Based On Selection: 24
Andrew K Conner
Metrics
H-Index
i10 Index
Citation Counts
30
64
2,389
Rankings
Ranking Based On Selection: 25
Edgardo Szyld
Metrics
H-Index
i10 Index
Citation Counts
30
55
9,005
Rankings
Ranking Based On Selection: 26
Natarajan Aravindan
Metrics
H-Index
i10 Index
Citation Counts
30
58
2,006
cancer biology
radiation biology
developmental therapeutics
oxidative stress
Rankings
Ranking Based On Selection: 28
Michael P Anderson
Metrics
H-Index
i10 Index
Citation Counts
28
46
1,982
Bayesian Analysis
High Dimensional Data
Pediatrics
Neonatology
Intra-ventricular Hemorrhage
Rankings
Ranking Based On Selection: 29
Aaron Wendelboe
Metrics
H-Index
i10 Index
Citation Counts
28
42
7,315
epidemiology
disease surveillance
infectious diseases
pertussis
and venous thromboembolism. Bayesian software development
Rankings
Ranking Based On Selection: 30
Anthony C Johnson
Metrics
H-Index
i10 Index
Citation Counts
27
34
2,748
Neurogastroenterology
Gastroenterology
Neuroscience
Neuroendocrinology
Rankings
Ranking Based On Selection: 31
Lewis Hassell
Metrics
H-Index
i10 Index
Citation Counts
27
50
1,920
Rankings
Ranking Based On Selection: 32
Hariprasad Gali
Metrics
H-Index
i10 Index
Citation Counts
27
56
3,607
Rankings
Ranking Based On Selection: 33
Paul Darden
Metrics
H-Index
i10 Index
Citation Counts
27
45
2,992
Rankings
Ranking Based On Selection: 34
Pascale Lane
Metrics
H-Index
i10 Index
Citation Counts
27
46
3,444
pediatric kidney disease
pediatric dialysis
diabetic nephropathy
Rankings
Ranking Based On Selection: 35
Kelly Standifer
Metrics
H-Index
i10 Index
Citation Counts
27
52
3,391
pharmacology
neuropharmacology
PTSD
traumatic brain injury
Rankings
Ranking Based On Selection: 36
Trent Tipple
Metrics
H-Index
i10 Index
Citation Counts
26
46
1,852
Novel modulators of perinatal lung maturation and injury/repair
Rankings
Ranking Based On Selection: 37
Norman Hord
Metrics
H-Index
i10 Index
Citation Counts
26
36
4,182
Diet
nutrition
dietary nitrate and nitrite
cardiovascular health
performance
Rankings
Ranking Based On Selection: 38
Blaine Mooers
Metrics
H-Index
i10 Index
Citation Counts
26
37
2,222
Rankings
Ranking Based On Selection: 39
Jolaine Draugalis
Metrics
H-Index
i10 Index
Citation Counts
26
69
3,693
Rankings
Ranking Based On Selection: 40
Vibhuti Agrahari
Metrics
H-Index
i10 Index
Citation Counts
24
33
3,366
Rankings
Ranking Based On Selection: 41
Lurdes Queimado
Metrics
H-Index
i10 Index
Citation Counts
24
32
2,278
Oncology
DNA damage and repair
cell signaling
electronic cigarettes
tobacco
Rankings
Ranking Based On Selection: 42
Md Nazir Hossen
Metrics
H-Index
i10 Index
Citation Counts
23
29
1,565
Rankings
Ranking Based On Selection: 43
Mark L Lang
Metrics
H-Index
i10 Index
Citation Counts
23
44
1,637
Rankings
Ranking Based On Selection: 44
Anish Babu
Metrics
H-Index
i10 Index
Citation Counts
22
27
2,228
Biopharmaceutical-QC
Experimental Cancer Therapeutics
Nanomedicine
Drug/Gene delivery
Photodynamic Therapy
Rankings
Ranking Based On Selection: 45
Satish Kumar Ramraj
Metrics
H-Index
i10 Index
Citation Counts
22
38
2,052
Oncology
Ovarian Cancer
Drug Development
Probiotics
Rankings
Ranking Based On Selection: 46
Blake W Palmer
Metrics
H-Index
i10 Index
Citation Counts
22
39
1,313
Pediatric Urology
Disorders of Sex Development
Robotic and Minimally Invasive Surgery
Renal Transplantation
Antenatal Care o
Rankings
Ranking Based On Selection: 47
Tao Shen
Metrics
H-Index
i10 Index
Citation Counts
22
25
2,343
Rankings
Ranking Based On Selection: 48
Peter N Johnson
Metrics
H-Index
i10 Index
Citation Counts
22
44
2,365
pediatric pharmacy
sedation and analgesia
drug withdrawal
pharmacokinetic alterations in obesity
Rankings
Ranking Based On Selection: 51
Hala Chaaban
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,326
Rankings
Ranking Based On Selection: 52
Hakeem Shakir
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,255
Rankings
Ranking Based On Selection: 53
Hiroshi Y Yamada
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,868
Alzheimer's disease
Medical Oncology
mitosis
chromosome instability
mice
Rankings
Ranking Based On Selection: 54
Christian Amm
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,433
craniofacial surgery
plastic reconstructive surgery
craniofacial modeling
Rankings
Ranking Based On Selection: 56
Nidheesh Thadathil
Metrics
H-Index
i10 Index
Citation Counts
18
19
1,223
Rankings
Ranking Based On Selection: 57
Pouya Javadian
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,309
Rankings
Ranking Based On Selection: 58
Franklin A Hays
Metrics
H-Index
i10 Index
Citation Counts
18
23
3,616
redox biochemistry
ER Stress
nucleoside transport
membrane protein structure
diabetes
Rankings
Ranking Based On Selection: 59
Panayiotis Pelargos
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,220
Neurosurgery
Brain tumor
Skull Base
Genomics
Medical Education
Rankings
Ranking Based On Selection: 60
Fabio Ritto
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,144
Rankings
Ranking Based On Selection: 61
John Kimble Frazer
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,587
pediatric oncology
T cell cancer
zebrafish
Danio rerio
lymphocytes
Rankings
Ranking Based On Selection: 62
Valerie Eschiti
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,154
American Indian cancer disparities
community-based participatory research
Rankings
Ranking Based On Selection: 63
Peter Vitiello
Metrics
H-Index
i10 Index
Citation Counts
17
20
779
redox signaling
lung development
neonatal & pediatric oxidative diseases
Rankings
Ranking Based On Selection: 64
Zachary D Dalebroux
Metrics
H-Index
i10 Index
Citation Counts
16
17
2,290
Bacteriology
Salmonella
Innate Immunity
Macrophage
antibiotic
Rankings
Ranking Based On Selection: 65
Ankur Sharma
Metrics
H-Index
i10 Index
Citation Counts
15
16
532
Rankings
Ranking Based On Selection: 66
Arshid Mir
Metrics
H-Index
i10 Index
Citation Counts
15
16
910
Rankings
Ranking Based On Selection: 67
Khondoker Dedarul Alam
Metrics
H-Index
i10 Index
Citation Counts
15
16
635
Transporter
Drug metabolism
PK/PD and PBPK modeling
Drug-drug interaction
Rankings
Ranking Based On Selection: 68
Birju A Shah
Metrics
H-Index
i10 Index
Citation Counts
15
20
2,663
Rankings
Ranking Based On Selection: 69
Lynsie Morris
Metrics
H-Index
i10 Index
Citation Counts
15
19
1,033
Rankings
Ranking Based On Selection: 70
Hosang Jin
Metrics
H-Index
i10 Index
Citation Counts
15
20
694
Rankings
Ranking Based On Selection: 71
Xiang Ma
Metrics
H-Index
i10 Index
Citation Counts
14
16
627
Diabetic retinopathy and age-related macular degeneration
Rankings
Ranking Based On Selection: 72
Faizah Bhatti
Metrics
H-Index
i10 Index
Citation Counts
14
16
1,117
Retina
developmental vascular biology
retinopathy of prematurity
angiogenesis
neonatology
Rankings
Ranking Based On Selection: 73
Grzegorz B Gmyrek
Metrics
H-Index
i10 Index
Citation Counts
14
20
704
Rankings
Ranking Based On Selection: 74
Jeffrey M Goodloe
Metrics
H-Index
i10 Index
Citation Counts
14
19
851
Rankings
Ranking Based On Selection: 75
Gopal Pathuri
Metrics
H-Index
i10 Index
Citation Counts
14
19
610
Synthetic organic/ Bio-organic/ Medicinal chemistry/ Radiopharmaceuticals
Rankings
Ranking Based On Selection: 77
Kimberly D Ernst
Metrics
H-Index
i10 Index
Citation Counts
13
15
630
Rankings
Ranking Based On Selection: 78
Christen O'Neal
Metrics
H-Index
i10 Index
Citation Counts
13
15
390
Rankings
Ranking Based On Selection: 79
Gregory Nkepang
Metrics
H-Index
i10 Index
Citation Counts
13
15
859
Medicinal Chemistry
Drug Delivery
Photochemistry
Radiopharmaceutical Sciences
Nanotechnology
Rankings
Ranking Based On Selection: 80
Samrita Dogra
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,502
Pharmacology
Neuropharmacology
Gynecological Cancers
Drug target identification & validation
Rankings
Ranking Based On Selection: 81
Xiaohui Xu
Metrics
H-Index
i10 Index
Citation Counts
13
13
632
Rankings
Ranking Based On Selection: 82
Venkateswara Rao Eeda
Metrics
H-Index
i10 Index
Citation Counts
13
23
852
Rankings
Ranking Based On Selection: 83
Andrew M Bauer
Metrics
H-Index
i10 Index
Citation Counts
13
18
908
Cerebrovascular Neurosurgery
Brain Aneurysms
Brain AVMs
Brain Tumor
Rankings
Ranking Based On Selection: 84
Jeremy Johnson
Metrics
H-Index
i10 Index
Citation Counts
12
14
744
Rankings
Ranking Based On Selection: 85
Abhishek Bavle
Metrics
H-Index
i10 Index
Citation Counts
11
14
999
Rankings
Ranking Based On Selection: 86
Pawan Acharya
Metrics
H-Index
i10 Index
Citation Counts
11
11
730
Rankings
Ranking Based On Selection: 87
Heather C Rice
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,300
Rankings
Ranking Based On Selection: 88
Vincent Dennis
Metrics
H-Index
i10 Index
Citation Counts
11
13
321
Pharmacy education
pharmacy practice laboratory skill development
diabetes care and management
Rankings
Ranking Based On Selection: 89
Christie Buonpane
Metrics
H-Index
i10 Index
Citation Counts
10
10
275
Rankings
Ranking Based On Selection: 90
Joanna Gernsback
Metrics
H-Index
i10 Index
Citation Counts
9
9
234
Rankings
Ranking Based On Selection: 91
Isma Javed
Metrics
H-Index
i10 Index
Citation Counts
9
8
639
Rankings
Ranking Based On Selection: 92
Adam Rensing
Metrics
H-Index
i10 Index
Citation Counts
9
7
151
Rankings
Ranking Based On Selection: 93
Yuechi Xu
Metrics
H-Index
i10 Index
Citation Counts
9
9
757
Rankings
Ranking Based On Selection: 94
Raja Nandyal
Metrics
H-Index
i10 Index
Citation Counts
9
6
574
Rankings
Ranking Based On Selection: 95
Isaac Rutel
Metrics
H-Index
i10 Index
Citation Counts
9
9
450
medical imaging
detector design
deep learning
Rankings
Ranking Based On Selection: 97
Balaji Sadhasivam
Metrics
H-Index
i10 Index
Citation Counts
8
8
402
Environmental Toxicology
Genotoxicity
Cancer Biology
Reproductive Endocrinology
Rankings
Ranking Based On Selection: 98
Jason Booe
Metrics
H-Index
i10 Index
Citation Counts
8
7
346
Rankings
Ranking Based On Selection: 99
Abdullah Jahangir
Metrics
H-Index
i10 Index
Citation Counts
8
5
152
Rankings
Ranking Based On Selection: 100
Michael Martin
Metrics
H-Index
i10 Index
Citation Counts
8
8
581