Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![John Nurnberger](/user/assets/images/profile/no-profile-photo.png)
Psychiatric genetics
bipolar disorder
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
431
237
0.550
* Total i10 IndexRankings
Ranking Based On Selection: 2
![David Diaz](/user/assets/images/profile/no-profile-photo.png)
deaf mental health studies
psychosomatic medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
60
0.508
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Richard L Bell](/user/assets/images/profile/no-profile-photo.png)
Neuroscience
psychology
psychiatry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
57
0.509
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Leslie Hulvershorn](/user/assets/images/profile/no-profile-photo.png)
Child and Adolescent Psychiatry
Addiction Risk
Pediatric Neuroimaging
Emotion Regulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
37
0.902
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Tom Hummer](https://cdn.adscientificindex.com/pictures/93/1390231.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
32
0.889
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Tracy D Gunter](/user/assets/images/profile/no-profile-photo.png)
Forensic Psychiatry
Behavioral Genetics
Neurolaw
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
21
0.600
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Michael M Francis](https://cdn.adscientificindex.com/pictures/f6/1330283.jpg)
psychosis
TMS
fMRI
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Brandon Oberlin](https://cdn.adscientificindex.com/pictures/3a/5725771.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
16
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Justin Johnson](https://cdn.adscientificindex.com/pictures/06/5211672.jpg)
Psychiatry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
John Nurnberger
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
431
237
0.550
Psychiatric genetics
bipolar disorder
David Diaz
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
60
0.508
deaf mental health studies
psychosomatic medicine
Richard L Bell
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
112
57
0.509
Neuroscience
psychology
psychiatry
Leslie Hulvershorn
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
37
0.902
Child and Adolescent Psychiatry
Addiction Risk
Pediatric Neuroimaging
Emotion Regulation
Tom Hummer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
32
0.889
Tracy D Gunter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
21
0.600
Forensic Psychiatry
Behavioral Genetics
Neurolaw
Michael M Francis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
Brandon Oberlin
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
16
0.800
Justin Johnson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500