Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 5.316 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

* Last 6 Years Citation Rankings

Rankings

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21
World Rank
United States
11
Country Rank
University of California San Diego Logo
1
University
Ranking Based On Selection:
1
Engineering & Technology / Bioengineering
microbiome | human microbiome | environmental microbiolog

Citation Metrics

  • Total
    467,480
  • Last 6 Years
    271,829
  • Last 6 Years / Total
    0.581
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* Last 6 Years Citation Rankings

Rankings

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214
World Rank
United States
77
Country Rank
University of California San Diego Logo
2
University
Ranking Based On Selection:
2
Others
Preventive medicine | epidemiolog

Citation Metrics

  • Total
    279,489
  • Last 6 Years
    140,083
  • Last 6 Years / Total
    0.501
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* Last 6 Years Citation Rankings

Rankings

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636
World Rank
United States
204
Country Rank
University of California San Diego Logo
3
University
Ranking Based On Selection:
3
Natural Sciences / Physics
High Energy Physics | Experimenta

Citation Metrics

  • Total
    290,580
  • Last 6 Years
    104,590
  • Last 6 Years / Total
    0.360
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* Last 6 Years Citation Rankings

Rankings

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670
World Rank
United States
218
Country Rank
University of California San Diego Logo
4
University
Ranking Based On Selection:
4
Natural Sciences / Physics
high energy physics | particle physics | machine learning | higgs boso

Citation Metrics

  • Total
    233,166
  • Last 6 Years
    103,102
  • Last 6 Years / Total
    0.442
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* Last 6 Years Citation Rankings

Rankings

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709
World Rank
United States
229
Country Rank
University of California San Diego Logo
5
University
Ranking Based On Selection:
5

Citation Metrics

  • Total
    234,926
  • Last 6 Years
    101,613
  • Last 6 Years / Total
    0.433
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* Last 6 Years Citation Rankings

Rankings

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729
World Rank
United States
235
Country Rank
University of California San Diego Logo
6
University
Ranking Based On Selection:
6
Others
Anxiety | stress | trauma | genetics | suicid

Citation Metrics

  • Total
    207,220
  • Last 6 Years
    100,839
  • Last 6 Years / Total
    0.487
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* Last 6 Years Citation Rankings

Rankings

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734
World Rank
United States
238
Country Rank
University of California San Diego Logo
7
University
Ranking Based On Selection:
7

Citation Metrics

  • Total
    125,847
  • Last 6 Years
    100,624
  • Last 6 Years / Total
    0.800
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* Last 6 Years Citation Rankings

Rankings

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992
World Rank
United States
331
Country Rank
University of California San Diego Logo
8
University
Ranking Based On Selection:
8
Medical and Health Sciences / Neuroscience
Neuroimaging | MRI | Computational Neuroscience | Statistical Genetics | Biomedical Optic

Citation Metrics

  • Total
    210,864
  • Last 6 Years
    89,681
  • Last 6 Years / Total
    0.425
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* Last 6 Years Citation Rankings

Rankings

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1,323
World Rank
United States
478
Country Rank
University of California San Diego Logo
9
University
Ranking Based On Selection:
9
Medical and Health Sciences / Gastroenterology
MASLD | fatty liver | NASH | cirrhosis | liver diseas

Citation Metrics

  • Total
    99,456
  • Last 6 Years
    80,327
  • Last 6 Years / Total
    0.808
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* Last 6 Years Citation Rankings

Rankings

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1,327
World Rank
United States
481
Country Rank
University of California San Diego Logo
10
University
Ranking Based On Selection:
10
Medical and Health Sciences / Gastroenterology
Inflammatory bowel disease | Crohn's disease | ulcerative coliti

Citation Metrics

  • Total
    202,073
  • Last 6 Years
    80,216
  • Last 6 Years / Total
    0.397
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* Last 6 Years Citation Rankings

Rankings

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1,417
World Rank
United States
523
Country Rank
University of California San Diego Logo
11
University
Ranking Based On Selection:
11
Medical and Health Sciences / Pharmacology
Molecular Biology | Immunology | Cancer Biology | Signal Transductio

Citation Metrics

  • Total
    357,478
  • Last 6 Years
    77,638
  • Last 6 Years / Total
    0.217
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* Last 6 Years Citation Rankings

Rankings

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1,472
World Rank
United States
541
Country Rank
University of California San Diego Logo
12
University
Ranking Based On Selection:
12

Citation Metrics

  • Total
    115,761
  • Last 6 Years
    76,121
  • Last 6 Years / Total
    0.658
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* Last 6 Years Citation Rankings

Rankings

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1,492
World Rank
United States
551
Country Rank
University of California San Diego Logo
13
University
Ranking Based On Selection:
13
Natural Sciences / Molecular Biology & Genetics
Genomics | Cancer | Machine Learning | Probability | Statistical Mechanic

Citation Metrics

  • Total
    162,923
  • Last 6 Years
    75,627
  • Last 6 Years / Total
    0.464
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* Last 6 Years Citation Rankings

Rankings

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1,510
World Rank
United States
554
Country Rank
University of California San Diego Logo
14
University
Ranking Based On Selection:
14
Natural Sciences / Biological Science
Computational Biology | New Sequencing Technologies | QIIM

Citation Metrics

  • Total
    116,272
  • Last 6 Years
    75,094
  • Last 6 Years / Total
    0.646
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* Last 6 Years Citation Rankings

Rankings

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1,549
World Rank
United States
568
Country Rank
University of California San Diego Logo
15
University
Ranking Based On Selection:
15
Engineering & Technology / Computer Science
machine learning | microbiome | visualization | human gut | data analysi

Citation Metrics

  • Total
    80,634
  • Last 6 Years
    74,037
  • Last 6 Years / Total
    0.918
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* Last 6 Years Citation Rankings

Rankings

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1,558
World Rank
United States
574
Country Rank
University of California San Diego Logo
16
University
Ranking Based On Selection:
16
Business & Management / Communications and Media Studies
The role of culture in human developmen

Citation Metrics

  • Total
    277,132
  • Last 6 Years
    73,829
  • Last 6 Years / Total
    0.266
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* Last 6 Years Citation Rankings

Rankings

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1,720
World Rank
United States
642
Country Rank
University of California San Diego Logo
17
University
Ranking Based On Selection:
17
Medical and Health Sciences / Epidemiology and Public Health
Public health | global health | physical activit

Citation Metrics

  • Total
    164,508
  • Last 6 Years
    69,913
  • Last 6 Years / Total
    0.425
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* Last 6 Years Citation Rankings

Rankings

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1,936
World Rank
United States
736
Country Rank
University of California San Diego Logo
18
University
Ranking Based On Selection:
18
Engineering & Technology / Nanoscience and Nanotechnology
biosensors | electrochemistry | nanomotors | modified electrodes | microfabricatio

Citation Metrics

  • Total
    180,977
  • Last 6 Years
    65,118
  • Last 6 Years / Total
    0.360
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* Last 6 Years Citation Rankings

Rankings

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2,138
World Rank
United States
820
Country Rank
University of California San Diego Logo
19
University
Ranking Based On Selection:
19

Citation Metrics

  • Total
    154,665
  • Last 6 Years
    61,216
  • Last 6 Years / Total
    0.396
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* Last 6 Years Citation Rankings

Rankings

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2,147
World Rank
United States
823
Country Rank
University of California San Diego Logo
20
University
Ranking Based On Selection:
20
Natural Sciences / Molecular Biology & Genetics
Cancer | Systems Biology | Networks | Bioinformatic

Citation Metrics

  • Total
    120,237
  • Last 6 Years
    61,067
  • Last 6 Years / Total
    0.508
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* Last 6 Years Citation Rankings

Rankings

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2,184
World Rank
United States
840
Country Rank
University of California San Diego Logo
21
University
Ranking Based On Selection:
21
Natural Sciences / Chemical Sciences
Mass spectrometry | Mass spectrometry informatics | Genome mining | Microbiome | Specialized metabolism in health and diseas

Citation Metrics

  • Total
    81,959
  • Last 6 Years
    60,410
  • Last 6 Years / Total
    0.737
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* Last 6 Years Citation Rankings

Rankings

flag
2,660
World Rank
United States
1,035
Country Rank
University of California San Diego Logo
22
University
Ranking Based On Selection:
22
Natural Sciences / Molecular Biology & Genetics
Epigenomics | Brain | Senescenc

Citation Metrics

  • Total
    120,729
  • Last 6 Years
    53,241
  • Last 6 Years / Total
    0.441
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* Last 6 Years Citation Rankings

Rankings

flag
3,084
World Rank
United States
1,205
Country Rank
University of California San Diego Logo
23
University
Ranking Based On Selection:
23
* Last 6 Years Citation Rankings

Rankings

flag
3,176
World Rank
United States
1,243
Country Rank
University of California San Diego Logo
24
University
Ranking Based On Selection:
24
Others
Aging | dementi | Alzheimer's | biomarkers | clinical trial

Citation Metrics

  • Total
    115,688
  • Last 6 Years
    48,092
  • Last 6 Years / Total
    0.416
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* Last 6 Years Citation Rankings

Rankings

flag
3,562
World Rank
United States
1,400
Country Rank
University of California San Diego Logo
25
University
Ranking Based On Selection:
25

Citation Metrics

  • Total
    72,699
  • Last 6 Years
    44,924
  • Last 6 Years / Total
    0.618
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