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: 2
J Hicks
Pediatric Diseases and Tumors
Dental Caries
Oral Pathology
Metrics
H-Index
i10 Index
Citation
88
379
30,075
* Rankings
Ranking Based On Selection: 3
Susan Blaney
pediatric oncology
neurooncology
phase 1
pharmacokinetics
intrathecal
Metrics
H-Index
i10 Index
Citation
78
220
18,170
* Rankings
Ranking Based On Selection: 6
Robin P Goin Kochel
autism
ASD
developmental regression
genotype-phenotype relationships
vaccine hesitancy
Metrics
H-Index
i10 Index
Citation
43
65
7,626
* Rankings
Ranking Based On Selection: 7
Richard Kellermayer|Richard Kellamayer
Crohn's disease
ulcerative colitis
Clostridioides difficile
epigenetics
fecal microbiota transplantation
Metrics
H-Index
i10 Index
Citation
43
111
6,982
Geoffrey A Preidis
Neonatal Gastroenterology
Malnutrition
Enteric Neuroscience
Liver & Intestinal Physiology
Metrics
H-Index
i10 Index
Citation
33
41
3,855

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
Jeroen Pollet
vaccines
tropical medicine
biosensors
proteomics
formulation
Metrics
H-Index
i10 Index
Citation
29
44
2,884
* Rankings
Ranking Based On Selection: 15
Reza Bekheirnia
Clinical Genetics and Genomics
Renal Genetics and Genomics
Precision Medicine
CAKUT
Metrics
H-Index
i10 Index
Citation
23
31
6,089
* Rankings
Ranking Based On Selection: 17
David D Schwartz
Psychology
Neuropsychology
Pediatrics
Medical Adherence
Type 1 Diabetes
Metrics
H-Index
i10 Index
Citation
18
25
1,308
* Rankings
Ranking Based On Selection: 19
Corrie E Chumpitazi
Pain
Sickle Cell Disease
Sedation
Disparities
Research Development
Metrics
H-Index
i10 Index
Citation
17
27
918
* Rankings
Ranking Based On Selection: 21
Olive Eckstein
Pediatric Oncology and Stem cell transplant
Hemophagocytic Lymphohistiocytosis
Langerhans Cell Histiocytosis
Lymphoma
Metrics
H-Index
i10 Index
Citation
14
18
1,531
* Rankings
Ranking Based On Selection: 22
Deborah Hsu
pediatric emergency medicine
medical education
assessment and evaluation
Metrics
H-Index
i10 Index
Citation
13
18
754
* Rankings
Ranking Based On Selection: 23
Heather Lukolyo
pediatrics
pediatric hospital medicine
global health
global child health
medical education
Metrics
H-Index
i10 Index
Citation
10
11
392
K Anitha Jayakumar
Pediatric and fetal cardiology
genetics
critical care
value based care
Metrics
H-Index
i10 Index
Citation
6
2
342
Rankings
Ranking Based On Selection: 1
Theresa A Nicklas
Metrics
H-Index
i10 Index
Citation Counts
100
303
106,432
Rankings
Ranking Based On Selection: 2
J Hicks
Metrics
H-Index
i10 Index
Citation Counts
88
379
30,075
Pediatric Diseases and Tumors
Dental Caries
Oral Pathology
Rankings
Ranking Based On Selection: 3
Susan Blaney
Metrics
H-Index
i10 Index
Citation Counts
78
220
18,170
pediatric oncology
neurooncology
phase 1
pharmacokinetics
intrathecal
Rankings
Ranking Based On Selection: 4
Kenneth Gabbay
Metrics
H-Index
i10 Index
Citation Counts
65
110
18,710
Rankings
Ranking Based On Selection: 6
Robin P Goin Kochel
Metrics
H-Index
i10 Index
Citation Counts
43
65
7,626
autism
ASD
developmental regression
genotype-phenotype relationships
vaccine hesitancy
Rankings
Ranking Based On Selection: 7
Richard Kellermayer|Richard Kellamayer
Metrics
H-Index
i10 Index
Citation Counts
43
111
6,982
Crohn's disease
ulcerative colitis
Clostridioides difficile
epigenetics
fecal microbiota transplantation
Rankings
Ranking Based On Selection: 9
Geoffrey A Preidis
Metrics
H-Index
i10 Index
Citation Counts
33
41
3,855
Neonatal Gastroenterology
Malnutrition
Enteric Neuroscience
Liver & Intestinal Physiology
Rankings
Ranking Based On Selection: 10
Henri Justino
Metrics
H-Index
i10 Index
Citation Counts
33
65
3,984

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
Jeroen Pollet
Metrics
H-Index
i10 Index
Citation Counts
29
44
2,884
vaccines
tropical medicine
biosensors
proteomics
formulation
Rankings
Ranking Based On Selection: 12
Alexander Kay
Metrics
H-Index
i10 Index
Citation Counts
28
45
3,646
Rankings
Ranking Based On Selection: 13
Scott Wenderfer
Metrics
H-Index
i10 Index
Citation Counts
28
62
2,690
Rankings
Ranking Based On Selection: 14
Bruno P Chumpitazi
Metrics
H-Index
i10 Index
Citation Counts
26
61
3,302
Rankings
Ranking Based On Selection: 15
Reza Bekheirnia
Metrics
H-Index
i10 Index
Citation Counts
23
31
6,089
Clinical Genetics and Genomics
Renal Genetics and Genomics
Precision Medicine
CAKUT
Rankings
Ranking Based On Selection: 16
Utpal Bhalala
Metrics
H-Index
i10 Index
Citation Counts
21
35
2,408
Rankings
Ranking Based On Selection: 17
David D Schwartz
Metrics
H-Index
i10 Index
Citation Counts
18
25
1,308
Psychology
Neuropsychology
Pediatrics
Medical Adherence
Type 1 Diabetes
Rankings
Ranking Based On Selection: 18
Runjun D Kumar
Metrics
H-Index
i10 Index
Citation Counts
17
20
12,132
Rankings
Ranking Based On Selection: 19
Corrie E Chumpitazi
Metrics
H-Index
i10 Index
Citation Counts
17
27
918
Pain
Sickle Cell Disease
Sedation
Disparities
Research Development
Rankings
Ranking Based On Selection: 20
Janet Malek
Metrics
H-Index
i10 Index
Citation Counts
16
22
1,004
Rankings
Ranking Based On Selection: 21
Olive Eckstein
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,531
Pediatric Oncology and Stem cell transplant
Hemophagocytic Lymphohistiocytosis
Langerhans Cell Histiocytosis
Lymphoma
Rankings
Ranking Based On Selection: 22
Deborah Hsu
Metrics
H-Index
i10 Index
Citation Counts
13
18
754
pediatric emergency medicine
medical education
assessment and evaluation
Rankings
Ranking Based On Selection: 23
Heather Lukolyo
Metrics
H-Index
i10 Index
Citation Counts
10
11
392
pediatrics
pediatric hospital medicine
global health
global child health
medical education
Rankings
Ranking Based On Selection: 24
Mered Parnes
Metrics
H-Index
i10 Index
Citation Counts
9
8
393
Rankings
Ranking Based On Selection: 25
Judith A Becker
Metrics
H-Index
i10 Index
Citation Counts
8
8
430
Rankings
Ranking Based On Selection: 26
Irene Patniyot
Metrics
H-Index
i10 Index
Citation Counts
7
7
454
Rankings
Ranking Based On Selection: 27
K Anitha Jayakumar
Metrics
H-Index
i10 Index
Citation Counts
6
2
342
Pediatric and fetal cardiology
genetics
critical care
value based care
Rankings
Ranking Based On Selection: 29
Michael Leonard Ferm
Metrics
H-Index
i10 Index
Citation Counts
1
1
26
Rankings
Ranking Based On Selection: 30
Jason Hyunjoon Choi|Jason H Choi
Metrics
H-Index
i10 Index
Citation Counts
1
1
24
Pediatric Emergency Medicine
Global Health
Quality Improvement