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" (888,752 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
Ramin Ravangard
Hospital Management
Human Resources Management
Economic Burden of Diseases
Economic Evaluation
Metrics
H-Index
i10 Index
Citation
38
112
5,173
* Rankings
Ranking Based On Selection: 2
Nahid Hatam
Health Administration
Health Economic
Cost- Efficiency
Metrics
H-Index
i10 Index
Citation
22
56
1,582
Mohammadreza Zakeri
Health Inequalities
Social Determinants of Health
Health Care Financing
Health Care Utilization
National Health Accounts
Metrics
H-Index
i10 Index
Citation
6
6
229
Rankings
Ranking Based On Selection: 1
Ramin Ravangard
Metrics
H-Index
i10 Index
Citation Counts
38
112
5,173
Hospital Management
Human Resources Management
Economic Burden of Diseases
Economic Evaluation
Rankings
Ranking Based On Selection: 2
Nahid Hatam
Metrics
H-Index
i10 Index
Citation Counts
22
56
1,582
Health Administration
Health Economic
Cost- Efficiency
Rankings
Ranking Based On Selection: 3
Mohammadreza Zakeri
Metrics
H-Index
i10 Index
Citation Counts
6
6
229
Health Inequalities
Social Determinants of Health
Health Care Financing
Health Care Utilization
National Health Accounts