Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as Scientists Last 6 Years' i10 Index, Universities Total i10 Index Rankings 2025, Universities Last 6 Years' i10 Index Rankings 2025, Art and Humanities i10 Productivity Rankings, and Social Sciences and Humanities i10 Productivity Rankings.
* Total i10 IndexRankings
Ranking Based On Selection :1
Internal Medicine
Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
78
0.821
* Total i10 IndexRankings
Ranking Based On Selection :2
Hepatology
HCV
HBV
HCC
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
86
0.925
* Total i10 IndexRankings
Ranking Based On Selection :3
Internal Medicine
Gastrointestinal Endoscopy
Abdominal Ultrasonography
Clinical Pharmacology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
21
0.263
* Total i10 IndexRankings
Ranking Based On Selection :4
Viral hepatitis
liver cancer
Hepatology
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
56
0.889
* Total i10 IndexRankings
Ranking Based On Selection :5
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
29
0.630
* Total i10 IndexRankings
Ranking Based On Selection :6
gastroenteroligy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
27
0.643
* Total i10 IndexRankings
Ranking Based On Selection :7
Diabetes Mellitus
Liver Diseases
GIT Diseases
Stem Cells
Anti Parasitic Diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
14
0.333
* Total i10 IndexRankings
Ranking Based On Selection :8
Professor of Paediatrics/Gastroenterology & Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
33
0.805
* Total i10 IndexRankings
Ranking Based On Selection :9
Hepatology
non-invasive assessment of hepatic fibrosis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
34
0.919
* Total i10 IndexRankings
Ranking Based On Selection :10
Gastroenterology & Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
33
0.892
* Total i10 IndexRankings
Ranking Based On Selection :11
Internal Medicine
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
32
0.889
* Total i10 IndexRankings
Ranking Based On Selection :12
Gastroenterology
Hepatology
Endoscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
* Total i10 IndexRankings
Ranking Based On Selection :13
Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
19
0.528
* Total i10 IndexRankings
Ranking Based On Selection :14
Gastroenterology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
* Total i10 IndexRankings
Ranking Based On Selection :15
Gastrointestinal physiology
Enivronemental Pollution and Body functions
Women's Health
Physiology of aging
Medical education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
20
0.571
* Total i10 IndexRankings
Ranking Based On Selection :16
Hepatitis B virus
vaccination of healthcare workers
HBV/HIV co-infection
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
24
0.750
* Total i10 IndexRankings
Ranking Based On Selection :17
Internal Medicine
Gastroenterology
Hepatology
Hepatitis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
23
0.719
* Total i10 IndexRankings
Ranking Based On Selection :18
Hepato-gastroenterology and infectous diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
* Total i10 IndexRankings
Ranking Based On Selection :19
gastroenteritis
norovirus epidemiology
environmental virology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
* Total i10 IndexRankings
Ranking Based On Selection :20
Gastrointestinal Anatomy
Cancer Research
Diabetes
Toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
12
0.400
* Total i10 IndexRankings
Ranking Based On Selection :21
Gastroenetrology and Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
23
0.793
* Total i10 IndexRankings
Ranking Based On Selection :22
EUS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
* Total i10 IndexRankings
Ranking Based On Selection :23
Gastroenterology
Endoscopic training and research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
20
0.741
* Total i10 IndexRankings
Ranking Based On Selection :24
Tropical medicine-Gastroenterology -Hepatology -Zoonotic Diseases-Parasitology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
7
0.259
* Total i10 IndexRankings
Ranking Based On Selection :25
Gastrointestinal Endoscopy
Gastroenterology
Hepatology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
17
0.654
Gamal E Shiha
Mansoura University
Mansoura, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
78
0.821
Internal Medicine
Hepatology
Mohamed El Kassas
Helwan University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
86
0.925
Mamoun Homeida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
21
0.263
Internal Medicine
Gastrointestinal Endoscopy
Abdominal Ultrasonography
Clinical Pharmacology
Olufunmilayo Lesi
University of Lagos
Lagos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
56
0.889
Viral hepatitis
liver cancer
Hepatology
Gastroenterology
Ajayi Akande Oladimeji
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
29
0.630
Moataz Sayed
Ain Shams University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
27
0.643
Ahmed Massoud
Al Azhar University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
42
14
0.333
Diabetes Mellitus
Liver Diseases
GIT Diseases
Stem Cells
Anti Parasitic Diseases
Christopher B. Eke
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
33
0.805
Professor of Paediatrics/Gastroenterology & Hepatology
Mohamed Alboraie
Al Azhar University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
34
0.919
Hepatology
non-invasive assessment of hepatic fibrosis
Hyasinta Jaka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
33
0.892
Gastroenterology & Hepatology
Gasim Gi
Al-Neelain University
Khartoum, Sudan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
32
0.889
Internal Medicine
Gastroenterology
Mohamed Anwar
October 6 University
Giza, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
Gastroenterology
Hepatology
Endoscopy
Mamdouh Gabr
Tanta University
Tanta, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
19
0.528
Onyekwere Charles Asabamaka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
27
0.771
Senate Randa Mostafa
Benha University
Qalyubia, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
35
20
0.571
Gastrointestinal physiology
Enivronemental Pollution and Body functions
Women's Health
Physiology of aging
Medical education
Rosemary Burnett
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
24
0.750
Hepatitis B virus
vaccination of healthcare workers
HBV/HIV co-infection
Abraham Orkurga Malu
University of Jos
Jos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
23
0.719
Internal Medicine
Gastroenterology
Hepatology
Hepatitis
Samy ZS|Samy Zaki, El-Sayed S.Z, Zaky S.
Al Azhar University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
Hepato-gastroenterology and infectous diseases
Janet Mans
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
21
0.677
gastroenteritis
norovirus epidemiology
environmental virology
David Ofusori
Obafemi Awolowo University
Ile-Ife, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
12
0.400
Gastrointestinal Anatomy
Cancer Research
Diabetes
Toxicology
Mohamed A Mekky
Assiut University
Asyut, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
23
0.793
Gastroenetrology and Hepatology
Samy Zaky
Al Azhar University
Cairo, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
28
27
0.964
Asem Ahmed Elfert
Tanta University
Tanta, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
20
0.741
Gastroenterology
Endoscopic training and research
Said Shalaby
National Research Center, Egypt
Cairo Governorate, Egypt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
7
0.259
Tropical medicine-Gastroenterology -Hepatology -Zoonotic Diseases-Parasitology
Adegboyega Akere
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
17
0.654
Gastrointestinal Endoscopy
Gastroenterology
Hepatology