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" (870,053 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
John Zalcberg
Gastrointestinal cancer
clinical trials
Metrics
H-Index
i10 Index
Citation
81
308
39,439
CK Yao
Ulcerative colitis
irritable bowel syndrome
diet
fibre
protein
Metrics
H-Index
i10 Index
Citation
25
38
2,920
Rimma Goldberg
Inflammatory Bowel Disease
Mucosal Immunology
Regulatory T cell Therapy
Metrics
H-Index
i10 Index
Citation
13
16
930
Annette Webb
Gastroenterology
Paediatrics & Adolescent Health
Mental Health
Integrative Medicine & Lifestyle Medicine
Metrics
H-Index
i10 Index
Citation
6
6
489
Rankings
Ranking Based On Selection: 1
John Zalcberg
Metrics
H-Index
i10 Index
Citation Counts
81
308
39,439
Rankings
Ranking Based On Selection: 2
Stuart K Roberts
Metrics
H-Index
i10 Index
Citation Counts
70
247
27,457
Rankings
Ranking Based On Selection: 3
Rachel Wong
Metrics
H-Index
i10 Index
Citation Counts
29
62
7,663
Rankings
Ranking Based On Selection: 4
Daniel Van Langenberg
Metrics
H-Index
i10 Index
Citation Counts
28
51
3,016
Rankings
Ranking Based On Selection: 5
CK Yao
Metrics
H-Index
i10 Index
Citation Counts
25
38
2,920
Ulcerative colitis
irritable bowel syndrome
diet
fibre
protein
Rankings
Ranking Based On Selection: 6
Ray Kiran Boyapati
Metrics
H-Index
i10 Index
Citation Counts
20
22
2,339
Rankings
Ranking Based On Selection: 7
Suzanne E Mahady
Metrics
H-Index
i10 Index
Citation Counts
18
24
2,499
Rankings
Ranking Based On Selection: 8
Rimma Goldberg
Metrics
H-Index
i10 Index
Citation Counts
13
16
930
Inflammatory Bowel Disease
Mucosal Immunology
Regulatory T cell Therapy
Rankings
Ranking Based On Selection: 9
Mary Ajamian
Metrics
H-Index
i10 Index
Citation Counts
8
8
862
Rankings
Ranking Based On Selection: 10
Annette Webb
Metrics
H-Index
i10 Index
Citation Counts
6
6
489
Gastroenterology
Paediatrics & Adolescent Health
Mental Health
Integrative Medicine & Lifestyle Medicine