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Rankings for Scientist

University, Subject, Country, Region, World

World 230.075 Scientists Subject Rankings

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Sep 02, 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 (1.122.044) 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].

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Total 230.075 scientists, 221 country, 24.498 institution
* Total H Index Rankings

Rankings

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4
World Rank
United States
1
Country Rank
Harvard University Logo
1
University
Ranking Based On Selection:
1
Ronald C Kessler
Harvard University Cambridge, United States
Medical and Health Sciences / Psychiatry
Psychiatric Epidemiolog

H-Index Metrics

  • H-Index
    348
  • i10 Index
    1,334
  • Citation Counts
    609,607
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* Total H Index Rankings

Rankings

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8
World Rank
United States
4
Country Rank
Harvard University Logo
2
University
Ranking Based On Selection:
2
Frank B Hu
Harvard University Cambridge, United States
Medical and Health Sciences / Epidemiology and Public Health

H-Index Metrics

  • H-Index
    326
  • i10 Index
    1,547
  • Citation Counts
    544,331
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* Total H Index Rankings

Rankings

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9
World Rank
United States
5
Country Rank
Harvard University Logo
3
University
Ranking Based On Selection:
3
Joann E Manson
Harvard University Cambridge, United States
Medical and Health Sciences / Endocrinology and Metabolism
Endocrinology | Epidemiology | Cardiovascular Disease | Diabetes | Women's healt

H-Index Metrics

  • H-Index
    325
  • i10 Index
    1,660
  • Citation Counts
    490,804
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* Total H Index Rankings

Rankings

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11
World Rank
United States
7
Country Rank
Washington University Saint Louis Logo
1
University
Ranking Based On Selection:
4
Graham Colditz
Washington University Saint Louis St. Louis, United States
Medical and Health Sciences / Epidemiology and Public Health
Epidemiology | Cancer Prevention | Health Outcome

H-Index Metrics

  • H-Index
    317
  • i10 Index
    1,365
  • Citation Counts
    397,327
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* Total H Index Rankings

Rankings

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13
World Rank
Canada
1
Country Rank
McMaster University Logo
1
University
Ranking Based On Selection:
5
Gordon Guyatt
McMaster University Hamilton, Canada
Medical and Health Sciences / Epidemiology and Public Health
Evidence-based medicin

H-Index Metrics

  • H-Index
    312
  • i10 Index
    1,712
  • Citation Counts
    632,616
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* Total H Index Rankings

Rankings

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15
World Rank
Japan
1
Country Rank
Osaka University Logo
1
University
Ranking Based On Selection:
6
Shizuo Akira
Osaka University Suita, Japan
Medical and Health Sciences / Immunology
immunolog

H-Index Metrics

  • H-Index
    311
  • i10 Index
    1,215
  • Citation Counts
    484,624
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* Total H Index Rankings

Rankings

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19
World Rank
Canada
2
Country Rank
McMaster University Logo
2
University
Ranking Based On Selection:
7
Salim Yusuf
McMaster University Hamilton, Canada
Medical and Health Sciences / Cardiology
Cardiolog

H-Index Metrics

  • H-Index
    306
  • i10 Index
    1,447
  • Citation Counts
    532,272
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* Total H Index Rankings

Rankings

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20
World Rank
United Kingdom
1
Country Rank
University of Bristol Logo
1
University
Ranking Based On Selection:
8
George Davey Smith
University of Bristol Bristol, United Kingdom
Medical and Health Sciences / Epidemiology and Public Health
Epidemiology | genetics | Mendelian randomization | Vitamin

H-Index Metrics

  • H-Index
    305
  • i10 Index
    1,847
  • Citation Counts
    478,107
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* Total H Index Rankings

Rankings

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26
World Rank
Finland
1
Country Rank
University of Helsinki Logo
1
University
Ranking Based On Selection:
9
Jaakko Tuomilehto
University of Helsinki Helsinki, Finland
Medical and Health Sciences / Epidemiology and Public Health
Public Health | Epidemiology | Diabetes | Cardiovascular Diseas

H-Index Metrics

  • H-Index
    300
  • i10 Index
    1,588
  • Citation Counts
    545,009
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* Total H Index Rankings

Rankings

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30
World Rank
United States
12
Country Rank
Harvard University Logo
5
University
Ranking Based On Selection:
10
Paul M Ridker
Harvard University Cambridge, United States
Medical and Health Sciences / Epidemiology and Public Health

H-Index Metrics

  • H-Index
    293
  • i10 Index
    1,203
  • Citation Counts
    504,042
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* Total H Index Rankings

Rankings

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33
World Rank
United States
14
Country Rank
Yale University Logo
1
University
Ranking Based On Selection:
11
Richard A Flavell
Yale University New Haven, United States
Medical and Health Sciences / Immunology
Immunolog

H-Index Metrics

  • H-Index
    287
  • i10 Index
    1,255
  • Citation Counts
    308,234
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* Total H Index Rankings

Rankings

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35
World Rank
United States
15
Country Rank
University of California San Diego Logo
1
University
Ranking Based On Selection:
12
Michael Karin
University of California San Diego San Diego, United States
Medical and Health Sciences / Pharmacology
Molecular Biology | Immunology | Cancer Biology | Signal Transductio

H-Index Metrics

  • H-Index
    286
  • i10 Index
    699
  • Citation Counts
    361,621
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* Total H Index Rankings

Rankings

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36
World Rank
United Kingdom
2
Country Rank
University College London Logo
1
University
Ranking Based On Selection:
13
Karl Friston
University College London London, United Kingdom
Medical and Health Sciences / Neuroscience
Neuroscienc

H-Index Metrics

  • H-Index
    285
  • i10 Index
    1,256
  • Citation Counts
    379,715
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* Total H Index Rankings

Rankings

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42
World Rank
United States
17
Country Rank
National Institute on Aging Logo
1
University
Ranking Based On Selection:
14
Luigi Ferrucci
National Institute on Aging Bethesda, United States
Medical and Health Sciences / Geriatrics
Geriatrics and Gerontolog

H-Index Metrics

  • H-Index
    279
  • i10 Index
    1,713
  • Citation Counts
    422,404
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* Total H Index Rankings

Rankings

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52
World Rank
United States
23
Country Rank
Stanford University Logo
2
University
Ranking Based On Selection:
15
John PA Ioannidis
Stanford University Stanford, United States
Medical and Health Sciences / Biostatistics
meta-research | clinical epidemiology | evidence-based medicine | research methods | meta-analysi

H-Index Metrics

  • H-Index
    270
  • i10 Index
    1,411
  • Citation Counts
    642,863
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* Total H Index Rankings

Rankings

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56
World Rank
United States
25
Country Rank
University of Washington Logo
1
University
Ranking Based On Selection:
16
Ali H Mokdad
University of Washington Seattle, United States
Medical and Health Sciences / Epidemiology and Public Health
Health Metrics | Population Health | Risk Factors | Global Health | Epidemiolog

H-Index Metrics

  • H-Index
    269
  • i10 Index
    972
  • Citation Counts
    623,025
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* Total H Index Rankings

Rankings

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57
World Rank
United Kingdom
5
Country Rank
King's College London Logo
1
University
Ranking Based On Selection:
17
Tim D Spector
King's College London London, United Kingdom
Medical and Health Sciences / Epidemiology and Public Health
medicine | genetics | nutrition | microbiom

H-Index Metrics

  • H-Index
    269
  • i10 Index
    1,323
  • Citation Counts
    288,707
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* Total H Index Rankings

Rankings

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58
World Rank
United States
26
Country Rank
Harvard University Logo
6
University
Ranking Based On Selection:
18
Peter Libby
Harvard University Cambridge, United States
Medical and Health Sciences / Epidemiology and Public Health
medicine | cardiology | atherosclerosis | immunolog

H-Index Metrics

  • H-Index
    269
  • i10 Index
    969
  • Citation Counts
    316,916
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* Total H Index Rankings

Rankings

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69
World Rank
United Kingdom
6
Country Rank
University of Liverpool Logo
1
University
Ranking Based On Selection:
19
Gregory Lip
University of Liverpool Liverpool, United Kingdom
Medical and Health Sciences / Cardiology
Atrial fibrillation | hypertension | thrombosis | heart failure | strok

H-Index Metrics

  • H-Index
    264
  • i10 Index
    1,965
  • Citation Counts
    655,097
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* Total H Index Rankings

Rankings

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79
World Rank
United Kingdom
9
Country Rank
University of Cambridge Logo
1
University
Ranking Based On Selection:
20
Nicholas Wareham
University of Cambridge Cambridge, United Kingdom
Medical and Health Sciences / Epidemiology and Public Health
epidemiology | metabolic disease | public health | nutrition | physical activit

H-Index Metrics

  • H-Index
    262
  • i10 Index
    1,254
  • Citation Counts
    375,374
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* Total H Index Rankings

Rankings

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95
World Rank
United States
41
Country Rank
Harvard University Logo
7
University
Ranking Based On Selection:
21
Eric Rimm
Harvard University Cambridge, United States
Medical and Health Sciences / Epidemiology and Public Health
Professor of Epidemiolog

H-Index Metrics

  • H-Index
    259
  • i10 Index
    939
  • Citation Counts
    324,652
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* Total H Index Rankings

Rankings

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106
World Rank
United States
48
Country Rank
Duke University Logo
2
University
Ranking Based On Selection:
22
Robert J Lefkowitz
Duke University Durham, United States
Medical and Health Sciences / Biochemistry
GPCRs | Structural biology | Biochemistry | Arrestins | Drug discover

H-Index Metrics

  • H-Index
    256
  • i10 Index
    827
  • Citation Counts
    211,304
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* Total H Index Rankings

Rankings

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107
World Rank
United Kingdom
10
Country Rank
University of Glasgow Logo
1
University
Ranking Based On Selection:
23
John McMurray
University of Glasgow Glasgow, United Kingdom
Medical and Health Sciences / Cardiology
Heart failure | Cardiology | Diabetes | CKD | Clinical trial

H-Index Metrics

  • H-Index
    255
  • i10 Index
    1,495
  • Citation Counts
    535,545
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* Total H Index Rankings

Rankings

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110
World Rank
United Kingdom
11
Country Rank
University of Oxford Logo
3
University
Ranking Based On Selection:
24
Cornelia M Van Duijn
University of Oxford Oxford, United Kingdom
Medical and Health Sciences / Epidemiology and Public Health

H-Index Metrics

  • H-Index
    255
  • i10 Index
    1,174
  • Citation Counts
    278,079
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* Total H Index Rankings

Rankings

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125
World Rank
United States
58
Country Rank
University of Washington Logo
2
University
Ranking Based On Selection:
25
Simon I. Hay
University of Washington Seattle, United States
Medical and Health Sciences / Epidemiology and Public Health
IHME | Health Metrics | Global Health | Public Health | Epidemiolog

H-Index Metrics

  • H-Index
    251
  • i10 Index
    648
  • Citation Counts
    447,090
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