World Scientist and University Rankings 2025

World Medical and Health Sciences 230.081 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 Apr 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 (1.120.277) 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 230.081 scientists, 194 country, 10.319 institution
* Total H IndexRankings
Ranking Based On Selection: 1
Ronald C Kessler
Psychiatric Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
346
1,312
591,752
* Total H IndexRankings
Ranking Based On Selection: 2
Joann E Manson
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
Metrics
H-Index
i10 Index
Citation Counts
324
1,624
492,411
* Total H IndexRankings
Ranking Based On Selection: 4
Graham Colditz
Epidemiology
Cancer Prevention
Health Outcomes
Metrics
H-Index
i10 Index
Citation Counts
316
1,354
398,847
* Total H IndexRankings
Ranking Based On Selection: 5
Shizuo Akira
immunolog
Metrics
H-Index
i10 Index
Citation Counts
309
1,211
479,467
* Total H IndexRankings
Ranking Based On Selection: 6
Gordon Guyatt
Evidence-based medicin
Metrics
H-Index
i10 Index
Citation Counts
304
1,687
604,295
* Total H IndexRankings
Ranking Based On Selection: 7
Salim Yusuf
Cardiolog
Metrics
H-Index
i10 Index
Citation Counts
302
1,414
524,868
* Total H IndexRankings
Ranking Based On Selection: 8
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Disease
Metrics
H-Index
i10 Index
Citation Counts
298
1,581
519,570
* Total H IndexRankings
Ranking Based On Selection: 9
George Davey Smith
Epidemiology
genetics
history of science
Metrics
H-Index
i10 Index
Citation Counts
296
1,799
451,691

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* Total H IndexRankings
Ranking Based On Selection: 13
Michael Karin
Molecular Biology
Immunology
Cancer Biology
Signal Transduction
Metrics
H-Index
i10 Index
Citation Counts
282
695
354,148
* Total H IndexRankings
Ranking Based On Selection: 14
Luigi Ferrucci
Geriatrics and Gerontology
Metrics
H-Index
i10 Index
Citation Counts
273
1,665
407,991
* Total H IndexRankings
Ranking Based On Selection: 15
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: 16
John PA Ioannidis
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
Metrics
H-Index
i10 Index
Citation Counts
265
1,360
606,495
* Total H IndexRankings
Ranking Based On Selection: 17
Peter Libby
medicine
cardiology
atherosclerosis
immunology
Metrics
H-Index
i10 Index
Citation Counts
263
944
311,126
* Total H IndexRankings
Ranking Based On Selection: 18
Gregory Lip
Atrial fibrillation
hypertension
thrombosis
heart failure
stroke
Metrics
H-Index
i10 Index
Citation Counts
260
1,941
631,220
* Total H IndexRankings
Ranking Based On Selection: 19
Nicholas Wareham
epidemiology
metabolic disease
public health
nutrition
physical activity
Metrics
H-Index
i10 Index
Citation Counts
260
1,241
366,013
* Total H IndexRankings
Ranking Based On Selection: 21
Robert J Lefkowitz
GPCRs
Structural biology
Biochemistry
Arrestins
Drug discovery
Metrics
H-Index
i10 Index
Citation Counts
257
828
209,981
* Total H IndexRankings
Ranking Based On Selection: 23
John McMurray
Heart failure
Cardiology
Diabetes
CKD
Clinical trials
Metrics
H-Index
i10 Index
Citation Counts
250
1,443
530,782
* Total H IndexRankings
Ranking Based On Selection: 24
Peter J Barnes
Respiratory medicin
Metrics
H-Index
i10 Index
Citation Counts
250
1,614
280,295
* Total H IndexRankings
Ranking Based On Selection: 25
Ali H Mokdad
Health Metrics
Population Health
IHME
Global Health
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
248
795
551,654
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Ronald C Kessler
          Metrics
H-Index
i10-Index
Citation Counts
346
1,312
591,752
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Joann E Manson
          Metrics
H-Index
i10-Index
Citation Counts
324
1,624
492,411
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's health
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Frank B Hu
          Metrics
H-Index
i10-Index
Citation Counts
320
1,510
525,264
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Graham Colditz
          Metrics
H-Index
i10-Index
Citation Counts
316
1,354
398,847
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Shizuo Akira
          Metrics
H-Index
i10-Index
Citation Counts
309
1,211
479,467
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Gordon Guyatt
          Metrics
H-Index
i10-Index
Citation Counts
304
1,687
604,295
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Salim Yusuf
          Metrics
H-Index
i10-Index
Citation Counts
302
1,414
524,868
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Jaakko Tuomilehto
          Metrics
H-Index
i10-Index
Citation Counts
298
1,581
519,570
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
George Davey Smith
          Metrics
H-Index
i10-Index
Citation Counts
296
1,799
451,691
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Paul M Ridker
          Metrics
H-Index
i10-Index
Citation Counts
291
1,187
501,366

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
Richard A Flavell
          Metrics
H-Index
i10-Index
Citation Counts
284
1,250
303,636
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Karl Friston
          Metrics
H-Index
i10-Index
Citation Counts
282
1,231
366,770
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Michael Karin
          Metrics
H-Index
i10-Index
Citation Counts
282
695
354,148
Molecular Biology
Immunology
Cancer Biology
Signal Transduction
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Luigi Ferrucci
          Metrics
H-Index
i10-Index
Citation Counts
273
1,665
407,991
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Tim D Spector
          Metrics
H-Index
i10-Index
Citation Counts
267
1,313
281,830
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
John PA Ioannidis
          Metrics
H-Index
i10-Index
Citation Counts
265
1,360
606,495
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Peter Libby
          Metrics
H-Index
i10-Index
Citation Counts
263
944
311,126
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Gregory Lip
          Metrics
H-Index
i10-Index
Citation Counts
260
1,941
631,220
Atrial fibrillation
hypertension
thrombosis
heart failure
stroke
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Nicholas Wareham
          Metrics
H-Index
i10-Index
Citation Counts
260
1,241
366,013
epidemiology
metabolic disease
public health
nutrition
physical activity
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Eric Rimm
          Metrics
H-Index
i10-Index
Citation Counts
259
929
329,880
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Robert J Lefkowitz
          Metrics
H-Index
i10-Index
Citation Counts
257
828
209,981
GPCRs
Structural biology
Biochemistry
Arrestins
Drug discovery
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
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: 23
John McMurray
          Metrics
H-Index
i10-Index
Citation Counts
250
1,443
530,782
Heart failure
Cardiology
Diabetes
CKD
Clinical trials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Peter J Barnes
          Metrics
H-Index
i10-Index
Citation Counts
250
1,614
280,295
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Ali H Mokdad
          Metrics
H-Index
i10-Index
Citation Counts
248
795
551,654
Health Metrics
Population Health
IHME
Global Health
Epidemiology