Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
29,882
Country Rank
13,672
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Guy A Caldwell *](https://cdn.adscientificindex.com/pictures/0b/1701685.jpg)
Neurobiology
Molecular Biology
Genetics
C. elegans
Human disease models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,278
11,122
0.458
* Total Citation Counts Rankings
World Rank
30,533
Country Rank
13,961
Institution Rank : 12
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Jeffrey G Parker](/user/assets/images/profile/no-profile-photo.png)
developmental psychology
peer relationships
friendship
jealousy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,925
4,453
0.186
* Total Citation Counts Rankings
World Rank
30,822
Country Rank
14,078
Institution Rank : 34
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Shaida Andrabi *](https://cdn.adscientificindex.com/pictures/53/1702266.jpg)
Stroke
Cell Death
Parkinson's disease
neurodegeneration
mitochondria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,767
11,353
0.478
* Total Citation Counts Rankings
World Rank
31,240
Country Rank
14,229
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Kim A Caldwell](/user/assets/images/profile/no-profile-photo.png)
C. elegans neurodegeneration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,558
10,553
0.448
* Total Citation Counts Rankings
World Rank
31,082
Country Rank
14,166
Institution Rank : 35
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Zechen Chong](/user/assets/images/profile/no-profile-photo.png)
Genomics
Bioinformatics
Computational biology
Population genetics
Molecular Evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,636
18,201
0.770
* Total Citation Counts Rankings
World Rank
31,201
Country Rank
14,214
Institution Rank : 36
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Namasivayam Ambalavanan](https://cdn.adscientificindex.com/pictures/2f/1702265.jpg)
Neonatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,579
12,954
0.549
* Total Citation Counts Rankings
World Rank
32,176
Country Rank
14,615
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Kenneth Lichstein](https://cdn.adscientificindex.com/pictures/4f/1701690.jpg)
insomnia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,089
9,216
0.399
* Total Citation Counts Rankings
World Rank
33,206
Country Rank
15,032
Institution Rank : 37
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![JP Segrest](https://cdn.adscientificindex.com/pictures/41/1702253.jpg)
biochemistry
biophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,567
2,315
0.103
* Total Citation Counts Rankings
World Rank
34,046
Country Rank
15,415
Institution Rank : 38
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Jerzy Szaflarski](/user/assets/images/profile/no-profile-photo.png)
neuroimaging
epilepsy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,143
10,904
0.492
* Total Citation Counts Rankings
World Rank
35,065
Country Rank
15,838
Institution Rank : 39
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![S Austad](https://cdn.adscientificindex.com/pictures/0e/1702257.jpg)
biology of aging
evolution
demography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,696
6,602
0.304
* Total Citation Counts Rankings
World Rank
34,817
Country Rank
15,721
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Peter D Harms](https://cdn.adscientificindex.com/pictures/0d/1701699.jpg)
Personality
Leadership
Narcissism
Personnel Selection
Workplace Deviance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,807
14,927
0.685
* Total Citation Counts Rankings
World Rank
36,026
Country Rank
16,220
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/11385.png)
![United States](/flags/us.png)
![Joshua D Foster](https://cdn.adscientificindex.com/pictures/d8/1621393.jpg)
quantitative methods
measurement
personality
narcissism
cognitive empathy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,287
11,775
0.553
* Total Citation Counts Rankings
World Rank
36,496
Country Rank
16,394
Institution Rank : 17
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![James T Dalton](https://cdn.adscientificindex.com/pictures/21/1701683.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,100
6,154
0.292
* Total Citation Counts Rankings
World Rank
36,480
Country Rank
16,388
Institution Rank : 16
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Maria Hernandez Reif](https://cdn.adscientificindex.com/pictures/dc/1701686.jpg)
maternal health
infant development
school readiness
massage therapy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,106
5,792
0.274
* Total Citation Counts Rankings
World Rank
37,147
Country Rank
16,663
Institution Rank : 40
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Goepfert Pa](/user/assets/images/profile/no-profile-photo.png)
HIV T cell immunology and vaccines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,840
8,123
0.390
* Total Citation Counts Rankings
World Rank
37,183
Country Rank
16,677
Institution Rank : 41
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Joshua Richman](/user/assets/images/profile/no-profile-photo.png)
surgical outcomes
epidemiology
biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,827
11,099
0.533
* Total Citation Counts Rankings
World Rank
38,116
Country Rank
17,073
Institution Rank : 42
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Jason Nichols Od](https://cdn.adscientificindex.com/pictures/a1/1702279.jpg)
Cornea
Contact Lenses
Dry Eye Disease
Meibomian Gland Dysfunction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,464
11,219
0.548
* Total Citation Counts Rankings
World Rank
38,212
Country Rank
17,109
Institution Rank : 43
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Kelly K Nichols Od Faao](/user/assets/images/profile/no-profile-photo.png)
dry eye
meibomian gland dysfunction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,419
11,137
0.545
* Total Citation Counts Rankings
World Rank
39,348
Country Rank
17,560
Institution Rank : 44
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Joanne Murphy Ullrich](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,004
4,507
0.225
* Total Citation Counts Rankings
World Rank
39,588
Country Rank
17,667
Institution Rank : 45
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![A Brent Carter](https://cdn.adscientificindex.com/pictures/36/1702280.jpg)
pulmonary fibrosis
macrophage biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,925
8,522
0.428
* Total Citation Counts Rankings
World Rank
40,937
Country Rank
18,200
Institution Rank : 46
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Daniel I Feig](https://cdn.adscientificindex.com/pictures/2b/1702263.jpg)
nephrology and hypertension
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,449
6,469
0.333
* Total Citation Counts Rankings
World Rank
41,360
Country Rank
18,365
Institution Rank : 47
![](https://cdn.adscientificindex.com/logos/10808.png)
![United States](/flags/us.png)
![Randy Cron](https://cdn.adscientificindex.com/pictures/2f/1702277.jpg)
Immunology
Rheumatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,306
10,822
0.561
* Total Citation Counts Rankings
World Rank
42,006
Country Rank
18,630
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/10809.png)
![United States](/flags/us.png)
![Jatinder Nd Gupta](https://cdn.adscientificindex.com/pictures/f4/1702866.jpg)
Operations
Scheduling
Enterprise Systems
Supply Chain Management
Information Systems and Strategy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,077
4,807
0.252
* Total Citation Counts Rankings
World Rank
42,209
Country Rank
18,707
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/10807.jpg)
![United States](/flags/us.png)
![Muhammad Elnimr](/user/assets/images/profile/no-profile-photo.png)
Neutrino & Dark Matter Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,008
7,814
0.411
* Total Citation Counts Rankings
World Rank
42,684
Country Rank
18,883
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/11235.png)
![United States](/flags/us.png)
![John Parnell](https://cdn.adscientificindex.com/pictures/68/1549353.jpg)
strategic management
crisis management
nonmarket strategy
ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,857
6,027
0.320
* Total Citation Counts Rankings
World Ranking
29,882
Country Ranking
13,672
Institution Ranking
11
Guy A Caldwell *
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,278
11,122
0.458
![](https://cdn.adscientificindex.com/logos/10807.jpg)
Neurobiology
Molecular Biology
Genetics
C. elegans
Human disease models
* Total Citation Counts Rankings
World Ranking
30,533
Country Ranking
13,961
Institution Ranking
12
Jeffrey G Parker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,925
4,453
0.186
![](https://cdn.adscientificindex.com/logos/10807.jpg)
developmental psychology
peer relationships
friendship
jealousy
* Total Citation Counts Rankings
World Ranking
30,822
Country Ranking
14,078
Institution Ranking
34
Shaida Andrabi *
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,767
11,353
0.478
![](https://cdn.adscientificindex.com/logos/10808.png)
Stroke
Cell Death
Parkinson's disease
neurodegeneration
mitochondria
* Total Citation Counts Rankings
World Ranking
31,240
Country Ranking
14,229
Institution Ranking
13
Kim A Caldwell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,558
10,553
0.448
* Total Citation Counts Rankings
World Ranking
31,082
Country Ranking
14,166
Institution Ranking
35
Zechen Chong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,636
18,201
0.770
![](https://cdn.adscientificindex.com/logos/10808.png)
Genomics
Bioinformatics
Computational biology
Population genetics
Molecular Evolution
* Total Citation Counts Rankings
World Ranking
31,201
Country Ranking
14,214
Institution Ranking
36
Namasivayam Ambalavanan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,579
12,954
0.549
* Total Citation Counts Rankings
World Ranking
32,176
Country Ranking
14,615
Institution Ranking
14
Kenneth Lichstein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,089
9,216
0.399
* Total Citation Counts Rankings
World Ranking
33,206
Country Ranking
15,032
Institution Ranking
37
JP Segrest
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,567
2,315
0.103
* Total Citation Counts Rankings
World Ranking
34,046
Country Ranking
15,415
Institution Ranking
38
Jerzy Szaflarski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,143
10,904
0.492
* Total Citation Counts Rankings
World Ranking
35,065
Country Ranking
15,838
Institution Ranking
39
S Austad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,696
6,602
0.304
![](https://cdn.adscientificindex.com/logos/10808.png)
biology of aging
evolution
demography
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* Total Citation Counts Rankings
World Ranking
34,817
Country Ranking
15,721
Institution Ranking
15
Peter D Harms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,807
14,927
0.685
![](https://cdn.adscientificindex.com/logos/10807.jpg)
Personality
Leadership
Narcissism
Personnel Selection
Workplace Deviance
* Total Citation Counts Rankings
World Ranking
36,026
Country Ranking
16,220
Institution Ranking
6
Joshua D Foster
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,287
11,775
0.553
![](https://cdn.adscientificindex.com/logos/11385.png)
quantitative methods
measurement
personality
narcissism
cognitive empathy
* Total Citation Counts Rankings
World Ranking
36,496
Country Ranking
16,394
Institution Ranking
17
James T Dalton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,100
6,154
0.292
* Total Citation Counts Rankings
World Ranking
36,480
Country Ranking
16,388
Institution Ranking
16
Maria Hernandez Reif
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,106
5,792
0.274
![](https://cdn.adscientificindex.com/logos/10807.jpg)
maternal health
infant development
school readiness
massage therapy
* Total Citation Counts Rankings
World Ranking
37,147
Country Ranking
16,663
Institution Ranking
40
Goepfert Pa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,840
8,123
0.390
* Total Citation Counts Rankings
World Ranking
37,183
Country Ranking
16,677
Institution Ranking
41
Joshua Richman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,827
11,099
0.533
* Total Citation Counts Rankings
World Ranking
38,116
Country Ranking
17,073
Institution Ranking
42
Jason Nichols Od
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,464
11,219
0.548
![](https://cdn.adscientificindex.com/logos/10808.png)
Cornea
Contact Lenses
Dry Eye Disease
Meibomian Gland Dysfunction
* Total Citation Counts Rankings
World Ranking
38,212
Country Ranking
17,109
Institution Ranking
43
Kelly K Nichols Od Faao
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,419
11,137
0.545
* Total Citation Counts Rankings
World Ranking
39,348
Country Ranking
17,560
Institution Ranking
44
Joanne Murphy Ullrich
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,004
4,507
0.225
* Total Citation Counts Rankings
World Ranking
39,588
Country Ranking
17,667
Institution Ranking
45
A Brent Carter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,925
8,522
0.428
![](https://cdn.adscientificindex.com/logos/10808.png)
pulmonary fibrosis
macrophage biology
* Total Citation Counts Rankings
World Ranking
40,937
Country Ranking
18,200
Institution Ranking
46
Daniel I Feig
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,449
6,469
0.333
![](https://cdn.adscientificindex.com/logos/10808.png)
nephrology and hypertension
* Total Citation Counts Rankings
World Ranking
41,360
Country Ranking
18,365
Institution Ranking
47
Randy Cron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,306
10,822
0.561
* Total Citation Counts Rankings
World Ranking
42,006
Country Ranking
18,630
Institution Ranking
3
Jatinder Nd Gupta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,077
4,807
0.252
![](https://cdn.adscientificindex.com/logos/10809.png)
Operations
Scheduling
Enterprise Systems
Supply Chain Management
Information Systems and Strategy
* Total Citation Counts Rankings
World Ranking
42,209
Country Ranking
18,707
Institution Ranking
18
Muhammad Elnimr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,008
7,814
0.411
* Total Citation Counts Rankings
World Ranking
42,684
Country Ranking
18,883
Institution Ranking
1
John Parnell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,857
6,027
0.320
![](https://cdn.adscientificindex.com/logos/11235.png)
strategic management
crisis management
nonmarket strategy
ethics