World Scientist and University Rankings 2025

World Medical and Health Sciences 12.958 Scientists Subject Rankings - 2025

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 6 yearsAs of May 17, 2025, the rankings are determined according to the Total H IndexBETA 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 (1.121.239) 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 12.958 scientists, 194 country, 10.320 institution
* Total H IndexRankings
Ranking Based On Selection: 2
Graham Colditz
Epidemiology
Cancer Prevention
Health Outcome
Metrics
H-Index
i10 Index
Citation Counts
317
1,359
401,442
* Total H IndexRankings
Ranking Based On Selection: 3
Gordon Guyatt
Evidence-based medicin
Metrics
H-Index
i10 Index
Citation Counts
305
1,703
612,656
* Total H IndexRankings
Ranking Based On Selection: 4
George Davey Smith
Epidemiology
genetics
history of scienc
Metrics
H-Index
i10 Index
Citation Counts
301
1,807
465,878
* Total H IndexRankings
Ranking Based On Selection: 5
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Diseas
Metrics
H-Index
i10 Index
Citation Counts
299
1,584
525,802
* Total H IndexRankings
Ranking Based On Selection: 7
Tim D Spector
medicine
genetics
nutrition
microbiom
Metrics
H-Index
i10 Index
Citation Counts
267
1,313
281,830
* Total H IndexRankings
Ranking Based On Selection: 8
Peter Libby
medicine
cardiology
atherosclerosis
immunolog
Metrics
H-Index
i10 Index
Citation Counts
266
953
315,343
* Total H IndexRankings
Ranking Based On Selection: 9
Nicholas Wareham
epidemiology
metabolic disease
public health
nutrition
physical activit
Metrics
H-Index
i10 Index
Citation Counts
260
1,248
371,740

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H IndexRankings
Ranking Based On Selection: 12
Ali H Mokdad
Health Metrics
Population Health
IHME
Global Health
Epidemiolog
Metrics
H-Index
i10 Index
Citation Counts
254
810
572,686
* Total H IndexRankings
Ranking Based On Selection: 13
Simon I. Hay
IHME
Health Metrics
Global Health
Public Health
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
248
634
415,121
* Total H IndexRankings
Ranking Based On Selection: 14
David J Hunter
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Healt
Metrics
H-Index
i10 Index
Citation Counts
248
1,162
351,624
* Total H IndexRankings
Ranking Based On Selection: 16
Zulfiqar Bhutta
Global Health
Child Survival
Public Health Nutritio
Metrics
H-Index
i10 Index
Citation Counts
232
1,181
389,386
* Total H IndexRankings
Ranking Based On Selection: 18
Diederick E. Grobbee
medicine
epidemiology
coronary heart disease
global healt
Metrics
H-Index
i10 Index
Citation Counts
232
1,352
365,638
* Total H IndexRankings
Ranking Based On Selection: 19
Joel Schwartz
air pollution
metals
health
statistics
epigenetic
Metrics
H-Index
i10 Index
Citation Counts
231
1,162
192,784
* Total H IndexRankings
Ranking Based On Selection: 20
Emelia J Benjamin
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammatio
Metrics
H-Index
i10 Index
Citation Counts
217
820
410,251
* Total H IndexRankings
Ranking Based On Selection: 21
Douglas Easton
Genetic Epidemiology
Cancer Epidemiology
Statistical Genetic
Metrics
H-Index
i10 Index
Citation Counts
217
963
215,926
* Total H IndexRankings
Ranking Based On Selection: 22
Goncalo Abecasis
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Trait
Metrics
H-Index
i10 Index
Citation Counts
216
531
385,594
* Total H IndexRankings
Ranking Based On Selection: 24
James F Sallis
physical activity
exercise
built environment
physical education
walkabilit
Metrics
H-Index
i10 Index
Citation Counts
216
758
257,797
* Total H IndexRankings
Ranking Based On Selection: 25
Elio Riboli
epidemiology
genetics
cancer
public healt
Metrics
H-Index
i10 Index
Citation Counts
209
1,086
256,512
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Frank B Hu
          Metrics
H-Index
i10-Index
Citation Counts
323
1,529
533,949
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Graham Colditz
          Metrics
H-Index
i10-Index
Citation Counts
317
1,359
401,442
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Gordon Guyatt
          Metrics
H-Index
i10-Index
Citation Counts
305
1,703
612,656
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
George Davey Smith
          Metrics
H-Index
i10-Index
Citation Counts
301
1,807
465,878
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Jaakko Tuomilehto
          Metrics
H-Index
i10-Index
Citation Counts
299
1,584
525,802
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Paul M Ridker
          Metrics
H-Index
i10-Index
Citation Counts
291
1,187
501,366
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Tim D Spector
          Metrics
H-Index
i10-Index
Citation Counts
267
1,313
281,830
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Peter Libby
          Metrics
H-Index
i10-Index
Citation Counts
266
953
315,343
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Nicholas Wareham
          Metrics
H-Index
i10-Index
Citation Counts
260
1,248
371,740
epidemiology
metabolic disease
public health
nutrition
physical activit
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Eric Rimm
          Metrics
H-Index
i10-Index
Citation Counts
259
929
329,880

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Cornelia M Van Duijn
          Metrics
H-Index
i10-Index
Citation Counts
255
1,166
272,085
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Ali H Mokdad
          Metrics
H-Index
i10-Index
Citation Counts
254
810
572,686
Health Metrics
Population Health
IHME
Global Health
Epidemiolog
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Simon I. Hay
          Metrics
H-Index
i10-Index
Citation Counts
248
634
415,121
IHME
Health Metrics
Global Health
Public Health
Epidemiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
David J Hunter
          Metrics
H-Index
i10-Index
Citation Counts
248
1,162
351,624
Cancer Epidemiology
Genetic Epidemiology
Nutritional Epidemiology
Global Healt
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Michael G Marmot
          Metrics
H-Index
i10-Index
Citation Counts
237
1,020
338,744
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Zulfiqar Bhutta
          Metrics
H-Index
i10-Index
Citation Counts
232
1,181
389,386
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Mika Kivimaki
          Metrics
H-Index
i10-Index
Citation Counts
232
1,341
378,921
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Diederick E. Grobbee
          Metrics
H-Index
i10-Index
Citation Counts
232
1,352
365,638
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Joel Schwartz
          Metrics
H-Index
i10-Index
Citation Counts
231
1,162
192,784
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Emelia J Benjamin
          Metrics
H-Index
i10-Index
Citation Counts
217
820
410,251
Atrial fibrillation
Faculty Development
Diversity-DEIA
Cardiovascular epidemiology
Inflammatio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Douglas Easton
          Metrics
H-Index
i10-Index
Citation Counts
217
963
215,926
Genetic Epidemiology
Cancer Epidemiology
Statistical Genetic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Goncalo Abecasis
          Metrics
H-Index
i10-Index
Citation Counts
216
531
385,594
Biostatistics
Human Genetics
Statistical Computing
Genetics
Complex Trait
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Carlo La Vecchia
          Metrics
H-Index
i10-Index
Citation Counts
216
2,061
267,202
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
James F Sallis
          Metrics
H-Index
i10-Index
Citation Counts
216
758
257,797
physical activity
exercise
built environment
physical education
walkabilit
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Elio Riboli
          Metrics
H-Index
i10-Index
Citation Counts
209
1,086
256,512