North America

H-Index
Rankings

North America Scientists H-Index Natural Sciences / Biological Science Rankings 2025

AD Scientific Index evaluates the academic productivity and efficiency of scientists and institutions based on the H-index, i10 index, and citation counts. In addition to total H-index rankings, you can also explore rankings and analyses by "Scientists Last 6 Years H-index" and by subject.

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Total 16.660 scientist
* Total H Index Rankings
World Rank
116
Country Rank
53
Institution Rank :1
Ranking Based On Selection :1
United States
Fred
Fred "Rusty" Gage
Salk Institute
San Diego , United States
Natural Sciences / Biological Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
251
130
0.518
See All Rankings and Analysis
* Total H Index Rankings
World Rank
166
Country Rank
74
Institution Rank :3
Ranking Based On Selection :2
United States
Eugene Koonin
Eugene Koonin
National Institutes of Health
Bethesda , United States
Natural Sciences / Biological Science
Biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
244
137
0.561
See All Rankings and Analysis
* Total H Index Rankings
World Rank
251
Country Rank
106
Institution Rank :2
Ranking Based On Selection :3
United States
Ronald M Evans
Ronald M Evans
Salk Institute
San Diego , United States
Natural Sciences / Biological Science
gene control
transcription
hormones
nuclear receptors
metabolism
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
233
106
0.455
See All Rankings and Analysis
* Total H Index Rankings
World Rank
288
Country Rank
117
Institution Rank :12
Ranking Based On Selection :4
United States
Rakesh Jain|Rakesh Jain
Rakesh Jain|Rakesh Jain
Harvard University
Cambridge , United States
Natural Sciences / Biological Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
228
140
0.614
See All Rankings and Analysis
* Total H Index Rankings
World Rank
328
Country Rank
131
Institution Rank :14
Ranking Based On Selection :5
United States
Ralph Weissleder
Ralph Weissleder
Harvard University
Cambridge , United States
Natural Sciences / Biological Science
Biotechnology
imaging
drugs
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
222
124
0.559
See All Rankings and Analysis
* Total H Index Rankings
World Rank
544
Country Rank
191
Institution Rank :1
Ranking Based On Selection :6
United States
Ian Fisk
Ian Fisk
Flatiron Institute
New York , United States
Natural Sciences / Biological Science
High Energy Physics
Data Science
High Performance Computing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
206
105
0.510
See All Rankings and Analysis
* Total H Index Rankings
World Rank
632
Country Rank
223
Institution Rank :1
Ranking Based On Selection :7
United States
Leroy Hood
Leroy Hood
Institute for Systems Biology
Washington , United States
Natural Sciences / Biological Science
Systems biology
genomics
personalized medicine
cancer
neurodegeneration
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
199
76
0.382
See All Rankings and Analysis
* Total H Index Rankings
World Rank
723
Country Rank
265
Institution Rank :6
Ranking Based On Selection :8
United States
Richard Young
Richard Young
Massachusetts Institute of Technology
Cambridge , United States
Natural Sciences / Biological Science
Biology
Genetics
Genomics
Epigenetics
Cancer
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
193
106
0.549
See All Rankings and Analysis
* Total H Index Rankings
World Rank
818
Country Rank
308
Institution Rank :3
Ranking Based On Selection :9
United States
David Tilman
David Tilman
University of Minnesota Twin Cities
Minneapolis , United States
Natural Sciences / Biological Science
ecology
sustainable agriculture
biodiversity
climate change ecology
conservation ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
186
121
0.651
See All Rankings and Analysis
* Total H Index Rankings
World Rank
870
Country Rank
334
Institution Rank :37
Ranking Based On Selection :10
United States
Marc Kirschner
Marc Kirschner
Harvard University
Cambridge , United States
Natural Sciences / Biological Science
systems biology
developmental biology
cell biology
evolution
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
183
81
0.443
See All Rankings and Analysis
* Total H Index Rankings
World Rank
983
Country Rank
381
Institution Rank :1
Ranking Based On Selection :11
United States
George Perry
George Perry
University of Texas San Antonio
San Antonio , United States
Natural Sciences / Biological Science
Alzheimer Disease
Parkinson Disease
Oxidative Stress
Amyloid
Neuroscience
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
176
87
0.494
See All Rankings and Analysis
* Total H Index Rankings
World Rank
998
Country Rank
391
Institution Rank :1
Ranking Based On Selection :12
United States
Richard D Smith
Richard D Smith
Pacific Northwest National Laboratory
Richland , United States
Natural Sciences / Biological Science
Mass spectrometry
SLIM technology
separations
proteomics
MS-based pan-omics
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
175
82
0.469
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,200
Country Rank
488
Institution Rank :11
Ranking Based On Selection :13
United States
Steven Salzberg
Steven Salzberg
Johns Hopkins University
Baltimore , United States
Natural Sciences / Biological Science
Computational Biology
Genomics
Bioinformatics
Metagenomics
Biomedical Data Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
166
112
0.675
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,288
Country Rank
531
Institution Rank :20
Ranking Based On Selection :14
United States
Paul R Ehrlich
Paul R Ehrlich
Stanford University
Stanford , United States
Natural Sciences / Biological Science
Population biology
human ecology
evolution
coevolution
conservation biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
76
0.466
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,404
Country Rank
583
Institution Rank :12
Ranking Based On Selection :15
United States
David S Eisenberg
David S Eisenberg
University of California Los Angeles
Los Angeles , United States
Natural Sciences / Biological Science
Proteins
amyloid
structural biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
159
84
0.528
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,442
Country Rank
608
Institution Rank :26
Ranking Based On Selection :16
United States
Harold Mooney
Harold Mooney
Stanford University
Stanford , United States
Natural Sciences / Biological Science
environmental biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
158
81
0.513
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,456
Country Rank
616
Institution Rank :27
Ranking Based On Selection :17
United States
Howard Y Chang
Howard Y Chang
Stanford University
Stanford , United States
Natural Sciences / Biological Science
Biology
Medicine
Genomics
Regulatory RNAs
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
127
0.809
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,468
Country Rank
621
Institution Rank :1
Ranking Based On Selection :18
United States
Vladimir Uversky
Vladimir Uversky
University of South Florida
Tampa , United States
Natural Sciences / Biological Science
Protein folding
protein misfolding
intrinsically disordered proteins
molecular biophysics
protein structure
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
102
0.650
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,475
Country Rank
626
Institution Rank :3
Ranking Based On Selection :19
United States
Doug Soltis
Doug Soltis
University of Florida
Gainesville , United States
Natural Sciences / Biological Science
Phylogenetics
Flowering Plant Evolution
Genome Doubling
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
92
0.586
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,619
Country Rank
690
Institution Rank :2
Ranking Based On Selection :20
United States
Jizhong Zhou
Jizhong Zhou
University of Oklahoma
Norman , United States
Natural Sciences / Biological Science
ecology
microbiology
genomic sciences
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
153
103
0.673
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,662
Country Rank
713
Institution Rank :4
Ranking Based On Selection :21
United States
Gregory P Asner
Gregory P Asner
Arizona State University
Tempe , United States
Natural Sciences / Biological Science
tropical ecology
land use change
coral reefs
conservation science
remote sensing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
152
105
0.691
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,707
Country Rank
729
Institution Rank :4
Ranking Based On Selection :22
United States
Dun Xian Tan
Dun Xian Tan
University of Texas Health Science Center at San Antonio
San Antonio , United States
Natural Sciences / Biological Science
melatonin
neurodegenerative disease
oxidative stress
evolution
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
97
0.642
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,712
Country Rank
731
Institution Rank :12
Ranking Based On Selection :23
United States
Simon Levin
Simon Levin
Princeton University
Princeton , United States
Natural Sciences / Biological Science
Ecology
theoretical ecology
mathematical biology
ecological economics
applied mathematics
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
89
0.589
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,757
Country Rank
754
Institution Rank :6
Ranking Based On Selection :24
United States
Dinshaw J Patel
Dinshaw J Patel
Memorial Sloan Kettering Cancer Center
Indore , United States
Natural Sciences / Biological Science
Structural Biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
150
89
0.593
See All Rankings and Analysis
* Total H Index Rankings
World Rank
1,765
Country Rank
757
Institution Rank :11
Ranking Based On Selection :25
United States
Stephen Badylak
Stephen Badylak
University of Pittsburgh
Pittsburgh , United States
Natural Sciences / Biological Science
Biologic Scaffolds
Whole Organ Regeneration
Macrophages
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
150
81
0.540
See All Rankings and Analysis
* Total H Index Rankings
Rankings
116
United States
53
1
Ranking Based On Selection: 1
Fred
Fred "Rusty" Gage
Salk Institute San Diego, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
251
130
0.518
Natural Sciences / Biological Science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
166
United States
74
3
Ranking Based On Selection: 2
Eugene Koonin
Eugene Koonin
National Institutes of Health Bethesda, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
244
137
0.561
Natural Sciences / Biological Science
Biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
251
United States
106
2
Ranking Based On Selection: 3
Ronald M Evans
Ronald M Evans
Salk Institute San Diego, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
233
106
0.455
Natural Sciences / Biological Science
gene control
transcription
hormones
nuclear receptors
metabolism
See All Rankings and Analysis
* Total H Index Rankings
Rankings
288
United States
117
12
Ranking Based On Selection: 4
Rakesh Jain|Rakesh Jain
Rakesh Jain|Rakesh Jain
Harvard University Cambridge, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
228
140
0.614
Natural Sciences / Biological Science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
328
United States
131
14
Ranking Based On Selection: 5
Ralph Weissleder
Ralph Weissleder
Harvard University Cambridge, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
222
124
0.559
Natural Sciences / Biological Science
Biotechnology
imaging
drugs
See All Rankings and Analysis
* Total H Index Rankings
Rankings
544
United States
191
1
Ranking Based On Selection: 6
Ian Fisk
Ian Fisk
Flatiron Institute New York, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
206
105
0.510
Natural Sciences / Biological Science
High Energy Physics
Data Science
High Performance Computing
See All Rankings and Analysis
* Total H Index Rankings
Rankings
632
United States
223
1
Ranking Based On Selection: 7
Leroy Hood
Leroy Hood
Institute for Systems Biology Washington, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
199
76
0.382
Natural Sciences / Biological Science
Systems biology
genomics
personalized medicine
cancer
neurodegeneration
See All Rankings and Analysis
* Total H Index Rankings
Rankings
723
United States
265
6
Ranking Based On Selection: 8
Richard Young
Richard Young
Massachusetts Institute of Technology Cambridge, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
193
106
0.549
Natural Sciences / Biological Science
Biology
Genetics
Genomics
Epigenetics
Cancer
See All Rankings and Analysis
* Total H Index Rankings
Rankings
818
United States
308
3
Ranking Based On Selection: 9
David Tilman
David Tilman
University of Minnesota Twin Cities Minneapolis, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
186
121
0.651
Natural Sciences / Biological Science
ecology
sustainable agriculture
biodiversity
climate change ecology
conservation ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
870
United States
334
37
Ranking Based On Selection: 10
Marc Kirschner
Marc Kirschner
Harvard University Cambridge, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
183
81
0.443
Natural Sciences / Biological Science
systems biology
developmental biology
cell biology
evolution
See All Rankings and Analysis
* Total H Index Rankings
Rankings
983
United States
381
1
Ranking Based On Selection: 11
George Perry
George Perry
University of Texas San Antonio San Antonio, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
176
87
0.494
Natural Sciences / Biological Science
Alzheimer Disease
Parkinson Disease
Oxidative Stress
Amyloid
Neuroscience
See All Rankings and Analysis
* Total H Index Rankings
Rankings
998
United States
391
1
Ranking Based On Selection: 12
Richard D Smith
Richard D Smith
Pacific Northwest National Laboratory Richland, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
175
82
0.469
Natural Sciences / Biological Science
Mass spectrometry
SLIM technology
separations
proteomics
MS-based pan-omics
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,200
United States
488
11
Ranking Based On Selection: 13
Steven Salzberg
Steven Salzberg
Johns Hopkins University Baltimore, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
166
112
0.675
Natural Sciences / Biological Science
Computational Biology
Genomics
Bioinformatics
Metagenomics
Biomedical Data Science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,288
United States
531
20
Ranking Based On Selection: 14
Paul R Ehrlich
Paul R Ehrlich
Stanford University Stanford, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
163
76
0.466
Natural Sciences / Biological Science
Population biology
human ecology
evolution
coevolution
conservation biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,404
United States
583
12
Ranking Based On Selection: 15
David S Eisenberg
David S Eisenberg
University of California Los Angeles Los Angeles, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
159
84
0.528
Natural Sciences / Biological Science
Proteins
amyloid
structural biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,442
United States
608
26
Ranking Based On Selection: 16
Harold Mooney
Harold Mooney
Stanford University Stanford, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
158
81
0.513
Natural Sciences / Biological Science
environmental biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,456
United States
616
27
Ranking Based On Selection: 17
Howard Y Chang
Howard Y Chang
Stanford University Stanford, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
127
0.809
Natural Sciences / Biological Science
Biology
Medicine
Genomics
Regulatory RNAs
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,468
United States
621
1
Ranking Based On Selection: 18
Vladimir Uversky
Vladimir Uversky
University of South Florida Tampa, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
102
0.650
Natural Sciences / Biological Science
Protein folding
protein misfolding
intrinsically disordered proteins
molecular biophysics
protein structure
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,475
United States
626
3
Ranking Based On Selection: 19
Doug Soltis
Doug Soltis
University of Florida Gainesville, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
157
92
0.586
Natural Sciences / Biological Science
Phylogenetics
Flowering Plant Evolution
Genome Doubling
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,619
United States
690
2
Ranking Based On Selection: 20
Jizhong Zhou
Jizhong Zhou
University of Oklahoma Norman, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
153
103
0.673
Natural Sciences / Biological Science
ecology
microbiology
genomic sciences
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,662
United States
713
4
Ranking Based On Selection: 21
Gregory P Asner
Gregory P Asner
Arizona State University Tempe, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
152
105
0.691
Natural Sciences / Biological Science
tropical ecology
land use change
coral reefs
conservation science
remote sensing
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,707
United States
729
4
Ranking Based On Selection: 22
Dun Xian Tan
Dun Xian Tan
University of Texas Health Science Center at San Antonio San Antonio, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
97
0.642
Natural Sciences / Biological Science
melatonin
neurodegenerative disease
oxidative stress
evolution
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,712
United States
731
12
Ranking Based On Selection: 23
Simon Levin
Simon Levin
Princeton University Princeton, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
151
89
0.589
Natural Sciences / Biological Science
Ecology
theoretical ecology
mathematical biology
ecological economics
applied mathematics
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,757
United States
754
6
Ranking Based On Selection: 24
Dinshaw J Patel
Dinshaw J Patel
Memorial Sloan Kettering Cancer Center Indore, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
150
89
0.593
Natural Sciences / Biological Science
Structural Biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
1,765
United States
757
11
Ranking Based On Selection: 25
Stephen Badylak
Stephen Badylak
University of Pittsburgh Pittsburgh, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
150
81
0.540
Natural Sciences / Biological Science
Biologic Scaffolds
Whole Organ Regeneration
Macrophages
See All Rankings and Analysis