Scientist and University Rankings 2025
North America 1.473 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 01, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.053) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
Metrics
H-Index
i10 Index
Citation Counts
265
1,352
600,149
* Total H IndexRankings
Ranking Based On Selection: 2
Metrics
H-Index
i10 Index
Citation Counts
196
707
238,262
* Total H IndexRankings
Ranking Based On Selection: 3
Statistical and computational human genetics and genomics
complex traits
type 2 diabetes and related traits
Metrics
H-Index
i10 Index
Citation Counts
172
457
189,815
* Total H IndexRankings
Ranking Based On Selection: 4
Biostatistics
Clinical Trials
Metrics
H-Index
i10 Index
Citation Counts
166
660
108,754
* Total H IndexRankings
Ranking Based On Selection: 5
Biostatistics
Metrics
H-Index
i10 Index
Citation Counts
157
497
128,112
* Total H IndexRankings
Ranking Based On Selection: 6
Bioinformatics
Human Genetics
Biostatistics
Systems Biology
Network Analysis
Metrics
H-Index
i10 Index
Citation Counts
146
473
124,164
* Total H IndexRankings
Ranking Based On Selection: 7
Biostatstics
Clinical Trials
Metrics
H-Index
i10 Index
Citation Counts
138
389
167,728
* Total H IndexRankings
Ranking Based On Selection: 8
biostatistics
Metrics
H-Index
i10 Index
Citation Counts
135
391
121,810
* Total H IndexRankings
Ranking Based On Selection: 9
computational metagenomics
human microbiome
biological data mining
Metrics
H-Index
i10 Index
Citation Counts
134
291
151,077
* Total H IndexRankings
Ranking Based On Selection: 10
biostatistics
medicine
healthcare
Metrics
H-Index
i10 Index
Citation Counts
134
399
81,471
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* Total H IndexRankings
Ranking Based On Selection: 11
cancer
statistics
screening
clinical trials
bayesian statistics
Metrics
H-Index
i10 Index
Citation Counts
132
486
89,455
* Total H IndexRankings
Ranking Based On Selection: 12
cardiovascular
cerebrovascular
Metrics
H-Index
i10 Index
Citation Counts
130
541
89,888
* Total H IndexRankings
Ranking Based On Selection: 13
Biostatistics
Bioinformatics
Data Science
Metrics
H-Index
i10 Index
Citation Counts
127
479
66,270
* Total H IndexRankings
Ranking Based On Selection: 14
Biostatistics
Clinical Trials
Prognostic Prediction
Metrics
H-Index
i10 Index
Citation Counts
126
427
83,950
* Total H IndexRankings
Ranking Based On Selection: 15
Biostatistics
Clinical Trials
Outcomes Research
Health Services Research
Methods for Evidence Synthesis
Metrics
H-Index
i10 Index
Citation Counts
123
804
74,121
* Total H IndexRankings
Ranking Based On Selection: 16
biostatistics
cancer
clinical trials
Metrics
H-Index
i10 Index
Citation Counts
122
776
71,589
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
122
303
216,829
* Total H IndexRankings
Ranking Based On Selection: 18
biostatistics
Metrics
H-Index
i10 Index
Citation Counts
121
354
62,514
* Total H IndexRankings
Ranking Based On Selection: 19
Biostatistics
Genetics
Radiation Epidemiology
Clinical Trials
Metrics
H-Index
i10 Index
Citation Counts
118
396
54,556
* Total H IndexRankings
Ranking Based On Selection: 20
Biostatistics
Psychometrics
Metrics
H-Index
i10 Index
Citation Counts
117
433
48,030
* Total H IndexRankings
Ranking Based On Selection: 21
Biostatistics
Bayesian methods
Clinical epidemiology
Metrics
H-Index
i10 Index
Citation Counts
114
459
57,996
* Total H IndexRankings
Ranking Based On Selection: 22
Biostatistics
Clinical Research
Metrics
H-Index
i10 Index
Citation Counts
114
317
50,740
* Total H IndexRankings
Ranking Based On Selection: 23
genetics
statistics
epidemiology
osteoporosis
Metrics
H-Index
i10 Index
Citation Counts
114
302
53,287
* Total H IndexRankings
Ranking Based On Selection: 24
biostatistics
public health
environment
precision medicine
Bayes
Metrics
H-Index
i10 Index
Citation Counts
113
318
116,213
* Total H IndexRankings
Ranking Based On Selection: 25
Biostatistics
Biomathematics
Cancer Research
Metrics
H-Index
i10 Index
Citation Counts
111
285
53,361
John PA Ioannidis
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
265
1,352
600,149
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
L Adrienne Cupples
Boston University
Boston, United States
Metrics
H-Index
i10-Index
Citation Counts
196
707
238,262
Michael Boehnke
University of Michigan
Ann Arbor, United States
Metrics
H-Index
i10-Index
Citation Counts
172
457
189,815
Statistical and computational human genetics and genomics
complex traits
type 2 diabetes and related traits
Mithat GöNen
Stanford University
Stanford, United States
Metrics
H-Index
i10-Index
Citation Counts
166
660
108,754
Biostatistics
Clinical Trials
Richard Gelber
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
157
497
128,112
Steve Horvath
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
146
473
124,164
Bioinformatics
Human Genetics
Biostatistics
Systems Biology
Network Analysis
Joseph Massaro
Boston University
Boston, United States
Metrics
H-Index
i10-Index
Citation Counts
138
389
167,728
Biostatstics
Clinical Trials
Frank Harrell
Vanderbilt University
Nashville, United States
Metrics
H-Index
i10-Index
Citation Counts
135
391
121,810
Curtis Huttenhower
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
134
291
151,077
computational metagenomics
human microbiome
biological data mining
David Alan Schoenfeld
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
134
399
81,471
biostatistics
medicine
healthcare
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Donald Berry
Metrics
H-Index
i10-Index
Citation Counts
132
486
89,455
cancer
statistics
screening
clinical trials
bayesian statistics
George Howard
University of Alabama Birmingham
Birmingham, United States
Metrics
H-Index
i10-Index
Citation Counts
130
541
89,888
cardiovascular
cerebrovascular
Yu Shyr
Vanderbilt University
Nashville, United States
Metrics
H-Index
i10-Index
Citation Counts
127
479
66,270
Biostatistics
Bioinformatics
Data Science
Ken Hess
Metrics
H-Index
i10-Index
Citation Counts
126
427
83,950
Biostatistics
Clinical Trials
Prognostic Prediction
Lehana Thabane
McMaster University
Hamilton, Canada
Metrics
H-Index
i10-Index
Citation Counts
123
804
74,121
Biostatistics
Clinical Trials
Outcomes Research
Health Services Research
Methods for Evidence Synthesis
J Jack Lee
Metrics
H-Index
i10-Index
Citation Counts
122
776
71,589
biostatistics
cancer
clinical trials
Nan Laird
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
122
303
216,829
Roger B Davis
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
121
354
62,514
Daniel O Stram
University of Southern California
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
118
396
54,556
Biostatistics
Genetics
Radiation Epidemiology
Clinical Trials
Melanie Wall
Columbia University New York
New York, United States
Metrics
H-Index
i10-Index
Citation Counts
117
433
48,030
Biostatistics
Psychometrics
George Tomlinson
University of Toronto
Toronto, Canada
Metrics
H-Index
i10-Index
Citation Counts
114
459
57,996
Biostatistics
Bayesian methods
Clinical epidemiology
Hang Lee
Harvard University
Cambridge, United States
Metrics
H-Index
i10-Index
Citation Counts
114
317
50,740
Biostatistics
Clinical Research
Elizabeth J Atkinson
Mayo Clinic
Rochester, United States
Metrics
H-Index
i10-Index
Citation Counts
114
302
53,287
genetics
statistics
epidemiology
osteoporosis
Scott L Zeger
Johns Hopkins University
Baltimore, United States
Metrics
H-Index
i10-Index
Citation Counts
113
318
116,213
biostatistics
public health
environment
precision medicine
Bayes
Robert Elashoff
University of California Los Angeles
Los Angeles, United States
Metrics
H-Index
i10-Index
Citation Counts
111
285
53,361
Biostatistics
Biomathematics
Cancer Research