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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,279 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 2
Muhammad Ali Chaudhary
Addiction
Opioids
Healthcare Disparities
Quality Metric
Metrics
 
H-Index
i10 Index
Citation
25
40
2,226
* Rankings
Ranking Based On Selection: 3
Theodore Bell|Ted Bell
Human Subjects Research
Statistical analysi
Metrics
 
H-Index
i10 Index
Citation
16
20
1,453
* Rankings
Ranking Based On Selection: 5
Matthew J. Singleton
cardiac electrophysiology
atrial fibrillation
electrocardiography
biomarkers and risk predictio
Metrics
 
H-Index
i10 Index
Citation
14
23
639
* Rankings
Ranking Based On Selection: 6
Abdul Waheed
Family Medicine
Health Services
Quality Improvement
Medical Educatio
Metrics
 
H-Index
i10 Index
Citation
14
22
1,639
Barbara Buchko
nursing workforce issues
evidence-based practice
patient safety
leadership
maternal-child healt
Metrics
 
H-Index
i10 Index
Citation
7
6
374
Mubasher Abbas
cardiology
cardiac electrophysiology
heart failure
Valvular diseas
Metrics
 
H-Index
i10 Index
Citation
5
5
255
Michael Fueyo
Autism
intellectual Disabilit
Metrics
 
H-Index
i10 Index
Citation
3
3
175
Marta Halytska
Family Medicine
atrial fibrillation
thrombosis
geriatrics
palliative car
Metrics
 
H-Index
i10 Index
Citation
1
1
841
Rankings
Ranking Based On Selection: 1
Ashish Kumar
Metrics
 
H-Index
i10 Index
Citation Counts
27
125
5,978
Rankings
Ranking Based On Selection: 2
Muhammad Ali Chaudhary
Metrics
 
H-Index
i10 Index
Citation Counts
25
40
2,226
Addiction
Opioids
Healthcare Disparities
Quality Metric
Rankings
Ranking Based On Selection: 3
Theodore Bell|Ted Bell
Metrics
 
H-Index
i10 Index
Citation Counts
16
20
1,453
Human Subjects Research
Statistical analysi
Rankings
Ranking Based On Selection: 4
Hassan Tariq
Metrics
 
H-Index
i10 Index
Citation Counts
16
31
880
Rankings
Ranking Based On Selection: 5
Matthew J. Singleton
Metrics
 
H-Index
i10 Index
Citation Counts
14
23
639
cardiac electrophysiology
atrial fibrillation
electrocardiography
biomarkers and risk predictio
Rankings
Ranking Based On Selection: 6
Abdul Waheed
Metrics
 
H-Index
i10 Index
Citation Counts
14
22
1,639
Family Medicine
Health Services
Quality Improvement
Medical Educatio
Rankings
Ranking Based On Selection: 7
Rajan Kanth
Metrics
 
H-Index
i10 Index
Citation Counts
13
14
494
Rankings
Ranking Based On Selection: 8
Ghaith Sharaf Dabbagh
Metrics
 
H-Index
i10 Index
Citation Counts
11
14
441
Rankings
Ranking Based On Selection: 9
Hafsa Abbas
Metrics
 
H-Index
i10 Index
Citation Counts
9
8
385
Rankings
Ranking Based On Selection: 11
Jayaram Thimmapuram
Metrics
 
H-Index
i10 Index
Citation Counts
8
8
379
Rankings
Ranking Based On Selection: 12
Barbara Buchko
Metrics
 
H-Index
i10 Index
Citation Counts
7
6
374
nursing workforce issues
evidence-based practice
patient safety
leadership
maternal-child healt
Rankings
Ranking Based On Selection: 13
Mubasher Abbas
Metrics
 
H-Index
i10 Index
Citation Counts
5
5
255
cardiology
cardiac electrophysiology
heart failure
Valvular diseas
Rankings
Ranking Based On Selection: 15
Matthew H. Trawczynski
Metrics
 
H-Index
i10 Index
Citation Counts
4
3
620
Rankings
Ranking Based On Selection: 17
Fletcher Munter
Metrics
 
H-Index
i10 Index
Citation Counts
4
3
153
Rankings
Ranking Based On Selection: 18
Sukrut Nanavaty
Metrics
 
H-Index
i10 Index
Citation Counts
4
2
103
Rankings
Ranking Based On Selection: 19
Michael Fueyo
Metrics
 
H-Index
i10 Index
Citation Counts
3
3
175
Autism
intellectual Disabilit
Rankings
Ranking Based On Selection: 21
Tarkeshwar Tiwary,Md,Fccp
Metrics
 
H-Index
i10 Index
Citation Counts
3
1
26
Rankings
Ranking Based On Selection: 22
Taofeek Akinpelu
Metrics
 
H-Index
i10 Index
Citation Counts
2
0
10
Rankings
Ranking Based On Selection: 24
Marta Halytska
Metrics
 
H-Index
i10 Index
Citation Counts
1
1
841
Family Medicine
atrial fibrillation
thrombosis
geriatrics
palliative car