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
Mark Effron
Thrombosis and antithrombotic therapy
Metrics
H-Index
i10 Index
Citation
45
89
13,018
* Rankings
Ranking Based On Selection: 2
Robert A Ramirez
Thoracic Oncology
Neuroendocrine Tumors
Metrics
H-Index
i10 Index
Citation
43
164
10,178
* Rankings
Ranking Based On Selection: 5
Alban De Schutter
Obesity paradox
Body Composition
Metrics
H-Index
i10 Index
Citation
31
34
4,200
* Rankings
Ranking Based On Selection: 7
Ns Duesbery
MAPK signaling
cancer
anthrax
Clinical research
vascular disease
Metrics
H-Index
i10 Index
Citation
28
45
3,797
Hernan Bazan
Vascular and Endovascular surgery
carotid disease and stroke
atherosclerosis
mechanisms of plaque vulnerability
Metrics
H-Index
i10 Index
Citation
22
29
1,960
Leonardo Seoane Md,Facp
Medical Education
Sepsis
Infectious Diseases in the ICI
Metrics
H-Index
i10 Index
Citation
21
30
3,220

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 11
Jonathan Hand
Transplant Infectious Diseases
Metrics
H-Index
i10 Index
Citation
15
20
782
* Rankings
Ranking Based On Selection: 12
Sangeeta Shah
Cardiovascular Imaging
Adult Congenital Heart Disease
Value-Based CV Imaging
Metrics
H-Index
i10 Index
Citation
15
20
1,476
Evan Jacobs
Echocardiography
PET stress testing
nuclear stress testing
SPECT stress testing
Metrics
H-Index
i10 Index
Citation
9
9
468
Daniel Sessions
CLINICAL TOXICOLOGY
EMERGENCY MEDICINE
SIMULATION EDUCATION
Metrics
H-Index
i10 Index
Citation
9
9
366
Harish Sidanmat|Harish Siddhanamatha
medical informatics
predictive modeling
population sciences
Metrics
H-Index
i10 Index
Citation
7
7
434
Jasmine Elison
Diabetic retinopathy
vascular retina diseases of the retina
macular degeneration
dry and wet AMD
retinal detachment
Metrics
H-Index
i10 Index
Citation
6
5
311
Jose Posas
Concussion
Headache
Occipital Neuralgia
Metrics
H-Index
i10 Index
Citation
4
1
57
Lea Martin
Digital Health
Behavioral Health
Substance Abuse
Just-in-Time Adaptive Interventions
Metrics
H-Index
i10 Index
Citation
4
3
80
Rankings
Ranking Based On Selection: 1
Mark Effron
Metrics
H-Index
i10 Index
Citation Counts
45
89
13,018
Thrombosis and antithrombotic therapy
Rankings
Ranking Based On Selection: 2
Robert A Ramirez
Metrics
H-Index
i10 Index
Citation Counts
43
164
10,178
Thoracic Oncology
Neuroendocrine Tumors
Rankings
Ranking Based On Selection: 3
Juan Carlos Q Velez
Metrics
H-Index
i10 Index
Citation Counts
34
73
5,820
Rankings
Ranking Based On Selection: 4
Eboni Price-Haywood
Metrics
H-Index
i10 Index
Citation Counts
32
59
8,370
Rankings
Ranking Based On Selection: 5
Alban De Schutter
Metrics
H-Index
i10 Index
Citation Counts
31
34
4,200
Obesity paradox
Body Composition
Rankings
Ranking Based On Selection: 6
Ari Cohen
Metrics
H-Index
i10 Index
Citation Counts
30
50
3,494
Rankings
Ranking Based On Selection: 7
Ns Duesbery
Metrics
H-Index
i10 Index
Citation Counts
28
45
3,797
MAPK signaling
cancer
anthrax
Clinical research
vascular disease
Rankings
Ranking Based On Selection: 8
Hernan Bazan
Metrics
H-Index
i10 Index
Citation Counts
22
29
1,960
Vascular and Endovascular surgery
carotid disease and stroke
atherosclerosis
mechanisms of plaque vulnerability
Rankings
Ranking Based On Selection: 9
Leonardo Seoane Md,Facp
Metrics
H-Index
i10 Index
Citation Counts
21
30
3,220
Medical Education
Sepsis
Infectious Diseases in the ICI
Rankings
Ranking Based On Selection: 10
Abdul Hamid El Chafic
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,845

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Jonathan Hand
Metrics
H-Index
i10 Index
Citation Counts
15
20
782
Transplant Infectious Diseases
Rankings
Ranking Based On Selection: 12
Sangeeta Shah
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,476
Cardiovascular Imaging
Adult Congenital Heart Disease
Value-Based CV Imaging
Rankings
Ranking Based On Selection: 13
Daniel Fort
Metrics
H-Index
i10 Index
Citation Counts
14
20
2,721
Rankings
Ranking Based On Selection: 14
Lynn R. Witherspoon
Metrics
H-Index
i10 Index
Citation Counts
14
19
685
Rankings
Ranking Based On Selection: 15
Ashley Laroche
Metrics
H-Index
i10 Index
Citation Counts
9
9
997
mtbi
concussion
PD
AD
PSP
Rankings
Ranking Based On Selection: 16
Evan Jacobs
Metrics
H-Index
i10 Index
Citation Counts
9
9
468
Echocardiography
PET stress testing
nuclear stress testing
SPECT stress testing
Rankings
Ranking Based On Selection: 17
Daniel Sessions
Metrics
H-Index
i10 Index
Citation Counts
9
9
366
CLINICAL TOXICOLOGY
EMERGENCY MEDICINE
SIMULATION EDUCATION
Rankings
Ranking Based On Selection: 18
Vivek Sabharwal
Metrics
H-Index
i10 Index
Citation Counts
8
7
411
Rankings
Ranking Based On Selection: 19
Harish Sidanmat|Harish Siddhanamatha
Metrics
H-Index
i10 Index
Citation Counts
7
7
434
medical informatics
predictive modeling
population sciences
Rankings
Ranking Based On Selection: 20
Andrea M Olofson
Metrics
H-Index
i10 Index
Citation Counts
7
6
518
Rankings
Ranking Based On Selection: 21
Vipin Varghese
Metrics
H-Index
i10 Index
Citation Counts
6
6
421
Rankings
Ranking Based On Selection: 22
Jasmine Elison
Metrics
H-Index
i10 Index
Citation Counts
6
5
311
Diabetic retinopathy
vascular retina diseases of the retina
macular degeneration
dry and wet AMD
retinal detachment
Rankings
Ranking Based On Selection: 23
Carl Haupt
Metrics
H-Index
i10 Index
Citation Counts
5
5
226
Rankings
Ranking Based On Selection: 24
William Davis|Davis WE, William Eugene Davis
Metrics
H-Index
i10 Index
Citation Counts
4
4
172
Rankings
Ranking Based On Selection: 25
Jose Posas
Metrics
H-Index
i10 Index
Citation Counts
4
1
57
Concussion
Headache
Occipital Neuralgia
Rankings
Ranking Based On Selection: 26
Lea Martin
Metrics
H-Index
i10 Index
Citation Counts
4
3
80
Digital Health
Behavioral Health
Substance Abuse
Just-in-Time Adaptive Interventions
Rankings
Ranking Based On Selection: 27
Bradley Peet
Metrics
H-Index
i10 Index
Citation Counts
3
2
75
Neurodegenerative disorders