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
Jerry Avorn
pharmacoepidemiology
side effects
drug policy
academic detailing
prescription drugs
Metrics
H-Index
i10 Index
Citation
151
541
123,601
* Rankings
Ranking Based On Selection :2
Dennis Ross Degnan
Pharmaceutical policy
health systems research
quality improvement
Metrics
H-Index
i10 Index
Citation
90
278
30,864
* Rankings
Ranking Based On Selection :3
Martin Kulldorff
disease surveillance
infectious disease outbreaks
scan statistics
pharmacoepidemiology
vaccines
Metrics
H-Index
i10 Index
Citation
83
207
32,143
Jessica Myers Franklin|Jessica A. Myers
real-world evidence
causal inference
pharmacoepidemiology
drug utilization
Metrics
H-Index
i10 Index
Citation
58
135
11,992
Joshua J Gagne
Real-world evidence
medical product safety and effectiveness
pharmacoepidemiology
data science
Metrics
H-Index
i10 Index
Citation
51
189
10,690
Sengwee Darren Toh
Pharmacoepidemiology
Privacy-protecting methods
Distributed data networks
Real-world evidence
Metrics
H-Index
i10 Index
Citation
48
141
8,630
PS Thiagarajan
Computational systems biology
real time
hybrid and probabilistic systems.
Metrics
H-Index
i10 Index
Citation
41
97
6,035
Leo F Buckley
Cardiovascular pharmacotherapy
pharmacology and pharmacoepidemiology
Metrics
H-Index
i10 Index
Citation
33
61
3,829
Peter M Wahl
Pharmacoepidemiology
outcomes research
pharmacogenomics
pharmacogenetics
Metrics
H-Index
i10 Index
Citation
26
33
2,916
Ashfaq Mahmood
Medicinal Chemistry
Molecular Imaging
Drug Discovery and Evaluation
Metrics
H-Index
i10 Index
Citation
23
33
2,760
Peiran Yang
Respiratory Disease
Pulmonary Hypertension
Pulmonary Fibrosis
BMP/TGFβ
GPCR
Metrics
H-Index
i10 Index
Citation
21
33
2,084
Marzieh Mohammadi
Nanopharmaceuticals
bone tissue engineering
Targeted drug delivery
Nonviral gene delivery systems
Metrics
H-Index
i10 Index
Citation
21
24
1,739
Anwesha Chaudhury
Computational Medicine
Pharmacometrics
Process Engineering
Numerical Techniques
Machine Learning
Metrics
H-Index
i10 Index
Citation
20
26
1,189
Baowen Qi
Medicinal Chemistry
Drug Delivery
Pharmacology
Biomedical Engineering
Biophysics
Metrics
H-Index
i10 Index
Citation
16
19
1,574
Sha Bai
Drug Discovery & Medicinal Chemistry
Total Synthesis
Process Development
Organometallics
Nano Particle
Metrics
H-Index
i10 Index
Citation
14
17
828
Michael Gilbert
Pharmacovigilance
Harm Reduction
Cryptomarkets
Behavioral Economics
Drug Policy
Metrics
H-Index
i10 Index
Citation
9
9
1,122
Weimin Tang
Pharmaceutical Sciences
Gene and drug delivery
Nanomedicine
Biomaterials
Metrics
H-Index
i10 Index
Citation
9
9
359
Sheyda Najafi
Pharmacology
Corneal angiogenesis
Neurotrophic Keratopathy
BMP signaling
Pharmacovigilance
Metrics
H-Index
i10 Index
Citation
8
7
248
Gil Aizik
Drug Delivery Systems
Nanoscience and Nanotechnology
Biomaterials
Metrics
H-Index
i10 Index
Citation
7
6
215
David Merola
pharmacoepidemiology
comparative effectiveness research
real-world evidence
oncology
clinical pharmacy
Metrics
H-Index
i10 Index
Citation
6
4
134
Dina Elharouni
Pharmacogenomics
Precision Oncology
Clinical Bioinformatics
Decision Intelligence
Metrics
H-Index
i10 Index
Citation
6
3
80
Alexandra Whiddon Tatara
Internal medicine
infectious diseases
venous thromboembolism
anticoagulation
diabetes mellitus
Metrics
H-Index
i10 Index
Citation
3
1
44
Rankings
Ranking Based On Selection: 1
Jerry Avorn
Metrics
H-Index
i10 Index
Citation Counts
151
541
123,601
pharmacoepidemiology
side effects
drug policy
academic detailing
prescription drugs
Rankings
Ranking Based On Selection: 2
Dennis Ross Degnan
Metrics
H-Index
i10 Index
Citation Counts
90
278
30,864
Pharmaceutical policy
health systems research
quality improvement
Rankings
Ranking Based On Selection: 3
Martin Kulldorff
Metrics
H-Index
i10 Index
Citation Counts
83
207
32,143
disease surveillance
infectious disease outbreaks
scan statistics
pharmacoepidemiology
vaccines
Rankings
Ranking Based On Selection: 4
Michael Chorev
Metrics
H-Index
i10 Index
Citation Counts
64
209
14,220
Rankings
Ranking Based On Selection: 5
Jessica Myers Franklin|Jessica A. Myers
Metrics
H-Index
i10 Index
Citation Counts
58
135
11,992
real-world evidence
causal inference
pharmacoepidemiology
drug utilization
Rankings
Ranking Based On Selection: 6
Andre Rosowsky
Metrics
H-Index
i10 Index
Citation Counts
54
198
9,948
Rankings
Ranking Based On Selection: 7
Joshua J Gagne
Metrics
H-Index
i10 Index
Citation Counts
51
189
10,690
Real-world evidence
medical product safety and effectiveness
pharmacoepidemiology
data science
Rankings
Ranking Based On Selection: 8
Sengwee Darren Toh
Metrics
H-Index
i10 Index
Citation Counts
48
141
8,630
Pharmacoepidemiology
Privacy-protecting methods
Distributed data networks
Real-world evidence
Rankings
Ranking Based On Selection: 9
Rishi J Desai
Metrics
H-Index
i10 Index
Citation Counts
47
125
8,822
Rankings
Ranking Based On Selection: 10
Jeevendra A Martyn
Metrics
H-Index
i10 Index
Citation Counts
43
106
5,922
Rankings
Ranking Based On Selection: 11
PS Thiagarajan
Metrics
H-Index
i10 Index
Citation Counts
41
97
6,035
Computational systems biology
real time
hybrid and probabilistic systems.
Rankings
Ranking Based On Selection: 12
Zohreh Amoozgar
Metrics
H-Index
i10 Index
Citation Counts
34
44
7,382
Rankings
Ranking Based On Selection: 13
Leo F Buckley
Metrics
H-Index
i10 Index
Citation Counts
33
61
3,829
Cardiovascular pharmacotherapy
pharmacology and pharmacoepidemiology
Rankings
Ranking Based On Selection: 14
Ameet Sarpatwari
Metrics
H-Index
i10 Index
Citation Counts
29
69
3,961
Rankings
Ranking Based On Selection: 15
Andrew C Seger
Metrics
H-Index
i10 Index
Citation Counts
29
43
10,541
Rankings
Ranking Based On Selection: 16
Peter M Wahl
Metrics
H-Index
i10 Index
Citation Counts
26
33
2,916
Pharmacoepidemiology
outcomes research
pharmacogenomics
pharmacogenetics
Rankings
Ranking Based On Selection: 17
Kai Bao
Metrics
H-Index
i10 Index
Citation Counts
24
49
2,008
Rankings
Ranking Based On Selection: 18
Hall Kathryn
Metrics
H-Index
i10 Index
Citation Counts
23
35
2,392
Rankings
Ranking Based On Selection: 19
Shirley V Wang
Metrics
H-Index
i10 Index
Citation Counts
23
28
2,032
Rankings
Ranking Based On Selection: 20
Ashfaq Mahmood
Metrics
H-Index
i10 Index
Citation Counts
23
33
2,760
Medicinal Chemistry
Molecular Imaging
Drug Discovery and Evaluation
Rankings
Ranking Based On Selection: 21
Xu Tan
Metrics
H-Index
i10 Index
Citation Counts
22
29
6,810
Rankings
Ranking Based On Selection: 22
Peiran Yang
Metrics
H-Index
i10 Index
Citation Counts
21
33
2,084
Respiratory Disease
Pulmonary Hypertension
Pulmonary Fibrosis
BMP/TGFβ
GPCR
Rankings
Ranking Based On Selection: 23
Marzieh Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
21
24
1,739
Nanopharmaceuticals
bone tissue engineering
Targeted drug delivery
Nonviral gene delivery systems
Rankings
Ranking Based On Selection: 24
Fabian Fröhlich
Metrics
H-Index
i10 Index
Citation Counts
21
24
1,572
Rankings
Ranking Based On Selection: 25
Katsiaryna Bykov
Metrics
H-Index
i10 Index
Citation Counts
21
39
2,045
Rankings
Ranking Based On Selection: 26
Hiraku Kumamaru
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,317
Rankings
Ranking Based On Selection: 27
Anwesha Chaudhury
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,189
Computational Medicine
Pharmacometrics
Process Engineering
Numerical Techniques
Machine Learning
Rankings
Ranking Based On Selection: 28
David W Kubiak
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,336
Rankings
Ranking Based On Selection: 29
Eduardo Sabate
Metrics
H-Index
i10 Index
Citation Counts
18
20
15,264
Rankings
Ranking Based On Selection: 30
Simon Matoori
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,589
Rankings
Ranking Based On Selection: 31
Baowen Qi
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,574
Medicinal Chemistry
Drug Delivery
Pharmacology
Biomedical Engineering
Biophysics
Rankings
Ranking Based On Selection: 32
Rucha Patel
Metrics
H-Index
i10 Index
Citation Counts
14
17
1,054
Rankings
Ranking Based On Selection: 33
Douglas R Vogus
Metrics
H-Index
i10 Index
Citation Counts
14
14
1,645
Rankings
Ranking Based On Selection: 34
Yanmin Zhang
Metrics
H-Index
i10 Index
Citation Counts
14
20
591
Rankings
Ranking Based On Selection: 35
Sha Bai
Metrics
H-Index
i10 Index
Citation Counts
14
17
828
Drug Discovery & Medicinal Chemistry
Total Synthesis
Process Development
Organometallics
Nano Particle
Rankings
Ranking Based On Selection: 36
Partha P Chakrabarti
Metrics
H-Index
i10 Index
Citation Counts
14
14
810
Rankings
Ranking Based On Selection: 37
Alex Kintu
Metrics
H-Index
i10 Index
Citation Counts
13
14
926
Rankings
Ranking Based On Selection: 38
Carly A Rodriguez
Metrics
H-Index
i10 Index
Citation Counts
13
14
763
Rankings
Ranking Based On Selection: 39
Nicole W Tsao
Metrics
H-Index
i10 Index
Citation Counts
13
15
726
Rankings
Ranking Based On Selection: 40
Sarah Withey
Metrics
H-Index
i10 Index
Citation Counts
12
12
430
Rankings
Ranking Based On Selection: 41
Lorna Cryan
Metrics
H-Index
i10 Index
Citation Counts
12
13
449
Rankings
Ranking Based On Selection: 42
Bo Yeun Yang
Metrics
H-Index
i10 Index
Citation Counts
11
14
603
Rankings
Ranking Based On Selection: 43
John Marshall
Metrics
H-Index
i10 Index
Citation Counts
10
10
970
Rankings
Ranking Based On Selection: 44
Yiqiang Wang
Metrics
H-Index
i10 Index
Citation Counts
10
10
532
Rankings
Ranking Based On Selection: 45
Michael Gilbert
Metrics
H-Index
i10 Index
Citation Counts
9
9
1,122
Pharmacovigilance
Harm Reduction
Cryptomarkets
Behavioral Economics
Drug Policy
Rankings
Ranking Based On Selection: 46
Changwon C. Lee
Metrics
H-Index
i10 Index
Citation Counts
9
9
423
Rankings
Ranking Based On Selection: 47
Weimin Tang
Metrics
H-Index
i10 Index
Citation Counts
9
9
359
Pharmaceutical Sciences
Gene and drug delivery
Nanomedicine
Biomaterials
Rankings
Ranking Based On Selection: 48
ChunTing Yang
Metrics
H-Index
i10 Index
Citation Counts
9
8
235
Rankings
Ranking Based On Selection: 49
Antonio Ramkissoon
Metrics
H-Index
i10 Index
Citation Counts
8
8
279
Rankings
Ranking Based On Selection: 50
Sheyda Najafi
Metrics
H-Index
i10 Index
Citation Counts
8
7
248
Pharmacology
Corneal angiogenesis
Neurotrophic Keratopathy
BMP signaling
Pharmacovigilance
Rankings
Ranking Based On Selection: 51
Kelly A. Krogh
Metrics
H-Index
i10 Index
Citation Counts
8
8
242
Pharmacology
Neuropharmacology
Neuroscience
Alzheimer's Disease
Rankings
Ranking Based On Selection: 52
Akansha Pant
Metrics
H-Index
i10 Index
Citation Counts
7
7
161
Rankings
Ranking Based On Selection: 53
Camila A Zanella
Metrics
H-Index
i10 Index
Citation Counts
7
6
304
Rankings
Ranking Based On Selection: 54
Gil Aizik
Metrics
H-Index
i10 Index
Citation Counts
7
6
215
Drug Delivery Systems
Nanoscience and Nanotechnology
Biomaterials
Rankings
Ranking Based On Selection: 55
Yanek JiménezAndrade
Metrics
H-Index
i10 Index
Citation Counts
7
6
179
Rankings
Ranking Based On Selection: 56
Katlynn Bugda Gwilt
Metrics
H-Index
i10 Index
Citation Counts
7
6
160
Rankings
Ranking Based On Selection: 57
Shuchi Mittal
Metrics
H-Index
i10 Index
Citation Counts
7
6
906
Rankings
Ranking Based On Selection: 58
David Merola
Metrics
H-Index
i10 Index
Citation Counts
6
4
134
pharmacoepidemiology
comparative effectiveness research
real-world evidence
oncology
clinical pharmacy
Rankings
Ranking Based On Selection: 59
Dina Elharouni
Metrics
H-Index
i10 Index
Citation Counts
6
3
80
Pharmacogenomics
Precision Oncology
Clinical Bioinformatics
Decision Intelligence
Rankings
Ranking Based On Selection: 60
Sungho Bea
Metrics
H-Index
i10 Index
Citation Counts
5
3
151
Rankings
Ranking Based On Selection: 61
Sulyman Barkho
Metrics
H-Index
i10 Index
Citation Counts
5
4
131
Rankings
Ranking Based On Selection: 62
Graziela Scheuer Gomes
Metrics
H-Index
i10 Index
Citation Counts
3
2
76
Pharmacy
nanotechnology
nanocapsules
autoimmune diseases
immunology
Rankings
Ranking Based On Selection: 63
Ben Berger
Metrics
H-Index
i10 Index
Citation Counts
3
2
51
Rankings
Ranking Based On Selection: 65
Alexandra Whiddon Tatara
Metrics
H-Index
i10 Index
Citation Counts
3
1
44
Internal medicine
infectious diseases
venous thromboembolism
anticoagulation
diabetes mellitus