World Scientist and University Rankings 2025

World Medical and Health Sciences 230.077 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 (1.121.217) 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 230.077 scientists, 194 country, 10.320 institution
* Total H IndexRankings
Ranking Based On Selection: 1
Ronald C Kessler
Psychiatric Epidemiolog
Metrics
H-Index
i10 Index
Citation Counts
348
1,318
599,286
* Total H IndexRankings
Ranking Based On Selection: 2
Joann E Manson
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's healt
Metrics
H-Index
i10 Index
Citation Counts
326
1,634
498,071
* Total H IndexRankings
Ranking Based On Selection: 4
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: 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
305
1,703
612,656
* Total H IndexRankings
Ranking Based On Selection: 7
Salim Yusuf
Cardiolog
Metrics
H-Index
i10 Index
Citation Counts
304
1,425
529,369
* Total H IndexRankings
Ranking Based On Selection: 8
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: 9
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Diseas
Metrics
H-Index
i10 Index
Citation Counts
299
1,584
525,802

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* Total H IndexRankings
Ranking Based On Selection: 13
Michael Karin
Molecular Biology
Immunology
Cancer Biology
Signal Transductio
Metrics
H-Index
i10 Index
Citation Counts
283
696
357,478
* Total H IndexRankings
Ranking Based On Selection: 14
Luigi Ferrucci
Geriatrics and Gerontolog
Metrics
H-Index
i10 Index
Citation Counts
276
1,687
416,206
* Total H IndexRankings
Ranking Based On Selection: 15
John PA Ioannidis
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysi
Metrics
H-Index
i10 Index
Citation Counts
269
1,370
621,816
* Total H IndexRankings
Ranking Based On Selection: 16
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: 17
Peter Libby
medicine
cardiology
atherosclerosis
immunolog
Metrics
H-Index
i10 Index
Citation Counts
266
953
315,343
* Total H IndexRankings
Ranking Based On Selection: 18
Gregory Lip
Atrial fibrillation
hypertension
thrombosis
heart failure
strok
Metrics
H-Index
i10 Index
Citation Counts
261
1,951
641,099
* Total H IndexRankings
Ranking Based On Selection: 19
Nicholas Wareham
epidemiology
metabolic disease
public health
nutrition
physical activit
Metrics
H-Index
i10 Index
Citation Counts
260
1,248
371,740
* 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
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: 24
John McMurray
Heart failure
Cardiology
Diabetes
CKD
Clinical trial
Metrics
H-Index
i10 Index
Citation Counts
253
1,469
541,170
* Total H IndexRankings
Ranking Based On Selection: 25
Peter J Barnes
Respiratory medicin
Metrics
H-Index
i10 Index
Citation Counts
250
1,614
280,295
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Ronald C Kessler
          Metrics
H-Index
i10-Index
Citation Counts
348
1,318
599,286
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Joann E Manson
          Metrics
H-Index
i10-Index
Citation Counts
326
1,634
498,071
Endocrinology
Epidemiology
Cardiovascular Disease
Diabetes
Women's healt
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Frank B Hu
          Metrics
H-Index
i10-Index
Citation Counts
323
1,529
533,949
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Graham Colditz
          Metrics
H-Index
i10-Index
Citation Counts
317
1,359
401,442
* 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
305
1,703
612,656
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Salim Yusuf
          Metrics
H-Index
i10-Index
Citation Counts
304
1,425
529,369
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
George Davey Smith
          Metrics
H-Index
i10-Index
Citation Counts
301
1,807
465,878
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Jaakko Tuomilehto
          Metrics
H-Index
i10-Index
Citation Counts
299
1,584
525,802
* 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
283
1,238
370,901
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Michael Karin
          Metrics
H-Index
i10-Index
Citation Counts
283
696
357,478
Molecular Biology
Immunology
Cancer Biology
Signal Transductio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Luigi Ferrucci
          Metrics
H-Index
i10-Index
Citation Counts
276
1,687
416,206
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
John PA Ioannidis
          Metrics
H-Index
i10-Index
Citation Counts
269
1,370
621,816
meta-research
clinical epidemiology
evidence-based medicine
research methods
meta-analysi
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Tim D Spector
          Metrics
H-Index
i10-Index
Citation Counts
267
1,313
281,830
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Peter Libby
          Metrics
H-Index
i10-Index
Citation Counts
266
953
315,343
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Gregory Lip
          Metrics
H-Index
i10-Index
Citation Counts
261
1,951
641,099
Atrial fibrillation
hypertension
thrombosis
heart failure
strok
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
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: 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
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: 24
John McMurray
          Metrics
H-Index
i10-Index
Citation Counts
253
1,469
541,170
Heart failure
Cardiology
Diabetes
CKD
Clinical trial
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Peter J Barnes
          Metrics
H-Index
i10-Index
Citation Counts
250
1,614
280,295