Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 299 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 Counts Rankings
Ranking Based On Selection: 1
Switzerland
Colin Mathers
health statistics
summary measures of population health
mortality
causes of death
global healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240,062
81,569
0.340
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Switzerland
Sergey Senkin
Computational analysis
statistics
data mining
cancer genomics
particle physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
186,248
77,064
0.414
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Switzerland
Noore Alam
Global health
emerging infectious disease
One Health
negl trop dis
health equit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,770
62,986
0.752
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Switzerland
Özge Tunçalp
maternal health
sexual and reproductive health
gender
health system
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,328
59,116
0.829
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Switzerland
Ivo Rakovac
Noncommunicable diseases
Public Health
Medical Informatics
Health Information
Health Services Researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,802
49,381
0.688
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Switzerland
Ayoub Al Jawaldeh
NCDs
Nutritio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,978
49,298
0.536
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Switzerland
Mercedes De Onis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,751
35,327
0.389
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Switzerland
Swathi Iyengar
pharmaceutical policy
public health
digital healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,546
32,368
0.840
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Switzerland
Lale Say
global health
reproductive health epidemiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,303
31,684
0.517

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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Switzerland
Jorge Cano
Spatial Epidemiology
Neglected Tropical Diseases
Vector-borne Diseases
Environmental Modelling
Data Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,690
29,053
0.792
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Switzerland
Dan Hogan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,777
28,323
0.633
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Switzerland
Andrew Siroka
Health Economics
Tuberculosi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,935
25,171
0.504
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Switzerland
Christopher Fitzpatrick
Global Health Economics
Financing
Governanc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,285
25,108
0.454
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Switzerland
Nirmal Kandel
Health Securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,688
25,020
0.664
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Switzerland
Rajiv Bahl|Bahl Rajiv, Bahl R
Health Research
Pediatrics and Child Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,655
24,373
0.534
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Switzerland
Joao Breda
alcohol
nutrition
obesity
physical activity
health system
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,435
20,288
0.798
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Switzerland
Lucy Turner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,477
19,015
0.810
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Switzerland
Tom Hiatt
Tuberculosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,856
18,536
0.465
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Switzerland
Ahmad Reza Hosseinpoor
Global Health
Health Inequality Monitoring
Data disaggregation
Health Information Systems
Inequalities In Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,371
17,252
0.517
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Switzerland
Annette Pruss-Ustun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,358
17,198
0.437
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Switzerland
Cheryl Case Johnson
HIV/AIDS
HIV testing services
HIV self-testing
Linkage to prevention
care & treatmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,162
16,975
0.886
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Switzerland
Alexander Butchart
Prevention of Violenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,186
15,262
0.561
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Switzerland
Khalid Saeed
mental health and Psychiatr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,128
14,424
0.796
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Switzerland
Mark Van Ommeren
mental healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,651
14,227
0.497
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Switzerland
Matthew Jowett
Health systems financin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,082
14,102
0.877
* Last 6 Years Citation Counts Rankings
Rankings
1,252
Switzerland
13
1
Ranking Based On Selection: 1
Colin Mathers
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
240,062
81,569
0.340
health statistics
summary measures of population health
mortality
causes of death
global healt
* Last 6 Years Citation Counts Rankings
Rankings
1,427
Switzerland
15
2
Ranking Based On Selection: 2
Sergey Senkin
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
186,248
77,064
0.414
Computational analysis
statistics
data mining
cancer genomics
particle physic
* Last 6 Years Citation Counts Rankings
Rankings
2,024
Switzerland
23
3
Ranking Based On Selection: 3
Noore Alam
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,770
62,986
0.752
Global health
emerging infectious disease
One Health
negl trop dis
health equit
* Last 6 Years Citation Counts Rankings
Rankings
2,225
Switzerland
28
4
Ranking Based On Selection: 4
Özge Tunçalp
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,328
59,116
0.829
maternal health
sexual and reproductive health
gender
health system
* Last 6 Years Citation Counts Rankings
Rankings
3,001
Switzerland
41
5
Ranking Based On Selection: 5
Ivo Rakovac
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,802
49,381
0.688
Noncommunicable diseases
Public Health
Medical Informatics
Health Information
Health Services Researc
* Last 6 Years Citation Counts Rankings
Rankings
3,011
Switzerland
42
6
Ranking Based On Selection: 6
Ayoub Al Jawaldeh
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
91,978
49,298
0.536
* Last 6 Years Citation Counts Rankings
Rankings
5,147
Switzerland
79
7
Ranking Based On Selection: 7
Mercedes De Onis
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,751
35,327
0.389
* Last 6 Years Citation Counts Rankings
Rankings
5,897
Switzerland
86
8
Ranking Based On Selection: 8
Swathi Iyengar
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,546
32,368
0.840
* Last 6 Years Citation Counts Rankings
Rankings
6,104
Switzerland
90
9
Ranking Based On Selection: 9
Lale Say
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,303
31,684
0.517
global health
reproductive health epidemiolog
* Last 6 Years Citation Counts Rankings
Rankings
6,989
Switzerland
106
10
Ranking Based On Selection: 10
Jorge Cano
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,690
29,053
0.792
Spatial Epidemiology
Neglected Tropical Diseases
Vector-borne Diseases
Environmental Modelling
Data Analysi

Smart Institutional Plan

Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.

* Last 6 Years Citation Counts Rankings
Rankings
7,292
Switzerland
115
11
Ranking Based On Selection: 11
Dan Hogan
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,777
28,323
0.633
* Last 6 Years Citation Counts Rankings
Rankings
8,788
Switzerland
144
12
Ranking Based On Selection: 12
Andrew Siroka
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,935
25,171
0.504
* Last 6 Years Citation Counts Rankings
Rankings
8,814
Switzerland
146
13
Ranking Based On Selection: 13
Christopher Fitzpatrick
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,285
25,108
0.454
* Last 6 Years Citation Counts Rankings
Rankings
8,864
Switzerland
147
14
Ranking Based On Selection: 14
Nirmal Kandel
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,688
25,020
0.664
* Last 6 Years Citation Counts Rankings
Rankings
9,273
Switzerland
154
15
Ranking Based On Selection: 15
Rajiv Bahl|Bahl Rajiv, Bahl R
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,655
24,373
0.534
* Last 6 Years Citation Counts Rankings
Rankings
12,313
Switzerland
193
16
Ranking Based On Selection: 16
Joao Breda
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,435
20,288
0.798
alcohol
nutrition
obesity
physical activity
health system
* Last 6 Years Citation Counts Rankings
Rankings
13,510
Switzerland
216
17
Ranking Based On Selection: 17
Lucy Turner
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,477
19,015
0.810
* Last 6 Years Citation Counts Rankings
Rankings
14,028
Switzerland
227
18
Ranking Based On Selection: 18
Tom Hiatt
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,856
18,536
0.465
* Last 6 Years Citation Counts Rankings
Rankings
15,645
Switzerland
260
19
Ranking Based On Selection: 19
Ahmad Reza Hosseinpoor
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,371
17,252
0.517
Global Health
Health Inequality Monitoring
Data disaggregation
Health Information Systems
Inequalities In Healt
* Last 6 Years Citation Counts Rankings
Rankings
15,710
Switzerland
263
20
Ranking Based On Selection: 20
Annette Pruss-Ustun
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,358
17,198
0.437
* Last 6 Years Citation Counts Rankings
Rankings
16,004
Switzerland
269
21
Ranking Based On Selection: 21
Cheryl Case Johnson
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,162
16,975
0.886
HIV/AIDS
HIV testing services
HIV self-testing
Linkage to prevention
care & treatmen
* Last 6 Years Citation Counts Rankings
Rankings
18,803
Switzerland
328
22
Ranking Based On Selection: 22
Alexander Butchart
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,186
15,262
0.561
* Last 6 Years Citation Counts Rankings
Rankings
20,531
Switzerland
368
23
Ranking Based On Selection: 23
Khalid Saeed
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,128
14,424
0.796
* Last 6 Years Citation Counts Rankings
Rankings
20,954
Switzerland
374
24
Ranking Based On Selection: 24
Mark Van Ommeren
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,651
14,227
0.497
* Last 6 Years Citation Counts Rankings
Rankings
21,224
Switzerland
376
25
Ranking Based On Selection: 25
Matthew Jowett
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,082
14,102
0.877