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” (1,120,277 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: 1
Joann E Manson
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
Metrics
 
H-Index
i10 Index
Citation
324
1,624
492,411
* Rankings
Ranking Based On Selection: 3
Gerald I Shulman
mitochondrial metabolism
type 2 diabetes
insulin resistance
gluconeogenesis
glycogen metabolis
Metrics
 
H-Index
i10 Index
Citation
199
561
172,597
* Rankings
Ranking Based On Selection: 5
Philippe Froguel
Diabetes
Obesity
Genetics
Genomics
Precision Medicine
Metrics
 
H-Index
i10 Index
Citation
190
694
171,242
* Rankings
Ranking Based On Selection: 9
Annamaria Colao
Malattie rare
Osteoporosi
Obesità
Ipofisi
Tumori Neuroendocrin
Metrics
 
H-Index
i10 Index
Citation
149
1,034
92,479
* Rankings
Ranking Based On Selection: 13
Claes Ohlsson
Bone metabolism
Endocrinology
bone
osteoporosis
growt
Metrics
 
H-Index
i10 Index
Citation
136
644
95,871
* Rankings
Ranking Based On Selection: 14
Seckl Jonathan
neuroendocrinology
glucocorticoids
stress
fetal programming
11beta-HSDs
Metrics
 
H-Index
i10 Index
Citation
135
484
78,951
* Rankings
Ranking Based On Selection: 15
Giovanni Targher
Diabetes
Endocrinology
Gastroenterology
Cardiology
Nephrology
Metrics
 
H-Index
i10 Index
Citation
129
515
75,700
* Rankings
Ranking Based On Selection: 19
Fereidoun Azizi
Internal Medicine
Endocrinology
thyroid
diabetes mellitu
Metrics
 
H-Index
i10 Index
Citation
123
1,202
176,936
* Rankings
Ranking Based On Selection: 21
Dario Giugliano
Diabetes Mellitus
Obesity
Metabolic Diseases
Metabolic Syndrome and Cancer
Cardiovascular risk
Metrics
 
H-Index
i10 Index
Citation
121
432
62,895
Rankings
Ranking Based On Selection: 1
Joann E Manson
Metrics
 
H-Index
i10 Index
Citation Counts
324
1,624
492,411
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
Rankings
Ranking Based On Selection: 2
George P Chrousos
Metrics
 
H-Index
i10 Index
Citation Counts
216
1,455
208,331
Rankings
Ranking Based On Selection: 3
Gerald I Shulman
Metrics
 
H-Index
i10 Index
Citation Counts
199
561
172,597
mitochondrial metabolism
type 2 diabetes
insulin resistance
gluconeogenesis
glycogen metabolis
Rankings
Ranking Based On Selection: 5
Philippe Froguel
Metrics
 
H-Index
i10 Index
Citation Counts
190
694
171,242
Rankings
Ranking Based On Selection: 6
Leif Groop
Metrics
 
H-Index
i10 Index
Citation Counts
189
816
264,375
Rankings
Ranking Based On Selection: 8
Daniel J Drucker
Metrics
 
H-Index
i10 Index
Citation Counts
155
422
96,854
Rankings
Ranking Based On Selection: 9
Annamaria Colao
Metrics
 
H-Index
i10 Index
Citation Counts
149
1,034
92,479
Malattie rare
Osteoporosi
Obesità
Ipofisi
Tumori Neuroendocrin
Rankings
Ranking Based On Selection: 10
Felipe F Casanueva
Metrics
 
H-Index
i10 Index
Citation Counts
142
604
97,469
Rankings
Ranking Based On Selection: 11
Rachel Yehuda
Metrics
 
H-Index
i10 Index
Citation Counts
139
430
74,237
Rankings
Ranking Based On Selection: 12
Hans Ulrich Häring
Metrics
 
H-Index
i10 Index
Citation Counts
138
835
78,741
Rankings
Ranking Based On Selection: 13
Claes Ohlsson
Metrics
 
H-Index
i10 Index
Citation Counts
136
644
95,871
Rankings
Ranking Based On Selection: 14
Seckl Jonathan
Metrics
 
H-Index
i10 Index
Citation Counts
135
484
78,951
neuroendocrinology
glucocorticoids
stress
fetal programming
11beta-HSDs
Rankings
Ranking Based On Selection: 15
Giovanni Targher
Metrics
 
H-Index
i10 Index
Citation Counts
129
515
75,700
Diabetes
Endocrinology
Gastroenterology
Cardiology
Nephrology
Rankings
Ranking Based On Selection: 16
Benita S Katzenellenbogen
Metrics
 
H-Index
i10 Index
Citation Counts
129
363
52,697
Rankings
Ranking Based On Selection: 17
Johannes A Romijn
Metrics
 
H-Index
i10 Index
Citation Counts
125
530
53,744
Rankings
Ranking Based On Selection: 18
Mario Maggi
Metrics
 
H-Index
i10 Index
Citation Counts
124
605
53,035
Rankings
Ranking Based On Selection: 19
Fereidoun Azizi
Metrics
 
H-Index
i10 Index
Citation Counts
123
1,202
176,936
Rankings
Ranking Based On Selection: 20
Ishwarlal Jialal
Metrics
 
H-Index
i10 Index
Citation Counts
123
398
72,336
Rankings
Ranking Based On Selection: 21
Dario Giugliano
Metrics
 
H-Index
i10 Index
Citation Counts
121
432
62,895
Diabetes Mellitus
Obesity
Metabolic Diseases
Metabolic Syndrome and Cancer
Cardiovascular risk
Rankings
Ranking Based On Selection: 22
Ilpo Huhtaniemi
Metrics
 
H-Index
i10 Index
Citation Counts
120
647
59,118
Rankings
Ranking Based On Selection: 23
Frank H De Jong
Metrics
 
H-Index
i10 Index
Citation Counts
120
429
50,287
Rankings
Ranking Based On Selection: 24
Hironobu Sasano
Metrics
 
H-Index
i10 Index
Citation Counts
117
955
73,584
Rankings
Ranking Based On Selection: 25
Pr Larsen
Metrics
 
H-Index
i10 Index
Citation Counts
117
341
57,119