Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :7
Azim Nejatizadeh
Medical Genetics
Cinical Genetics
Genetic Counseling
Neurogenetic
Hemoglobinopathies
Metrics
H-Index
i10 Index
Citation
26
50
5,445
* Rankings
Ranking Based On Selection :15
Nepton Soltani
diabetes
vessel complication
insulin resistance
beta cell regeneration
Metrics
H-Index
i10 Index
Citation
21
33
1,767
* Rankings
Ranking Based On Selection :24
Mehraban Shahi
Toxicology
Medical Entomology
Scorpiology
Venomous & Toxic Arthropos
Metrics
H-Index
i10 Index
Citation
17
22
1,133
* Rankings
Ranking Based On Selection :33
Elham Imani
nursing
Development and psychometric testing of instrument
qualitative research
factor analysis
Metrics
H-Index
i10 Index
Citation
13
18
598
* Rankings
Ranking Based On Selection :40
Farid Khorrami
Health information technology
EHR
Terminological Systems، Registry
Metrics
H-Index
i10 Index
Citation
12
15
384
* Rankings
Ranking Based On Selection :46
Ali Heyrani
systems thinking
healthcare management/ policy
change management
clinical governance
quality improvement
Metrics
H-Index
i10 Index
Citation
11
14
505
* Rankings
Ranking Based On Selection :51
Zahra Mastaneh
Health Information Management
Artificial Intelligence
Digital Health
Biometrics
Metrics
H-Index
i10 Index
Citation
11
11
480
Abdolhamid Tajvar
Occupational Health
Safety
Ergonomics
Accident Analysis
Risk Management
Metrics
H-Index
i10 Index
Citation
9
9
434
Nahid Moradi
Effective extract drug plants on Bacteria
Mechanisms of Antimicrobial resistance in Bacteria
Metrics
H-Index
i10 Index
Citation
8
8
205
Aziz Rahimizadeh
Pre-hospital and hospital emergency Disaster risk management Nursing in disasters Hospital preparedness program Mass c
Metrics
H-Index
i10 Index
Citation
8
7
366
Rankings
Ranking Based On Selection: 1
Yadollah Fakhri|Yadolah Fakhri
Metrics
H-Index
i10 Index
Citation Counts
60
140
8,541
Rankings
Ranking Based On Selection: 2
Teamur Aghamolaei
Metrics
H-Index
i10 Index
Citation Counts
39
94
4,991
Health education
Health Promotion
Medical Education
Rankings
Ranking Based On Selection: 3
Hamid Reza Ghaffari
Metrics
H-Index
i10 Index
Citation Counts
34
56
3,041
Rankings
Ranking Based On Selection: 4
Amin Reza Nikpoor
Metrics
H-Index
i10 Index
Citation Counts
31
65
4,420
Rankings
Ranking Based On Selection: 5
Alireza Sanei Dehkordi
Metrics
H-Index
i10 Index
Citation Counts
27
47
1,802
Rankings
Ranking Based On Selection: 6
Abbas Farahani
Metrics
H-Index
i10 Index
Citation Counts
26
46
1,808
Molecular typing
Tuberculosis
non-tuberculous mycobacteria
Rankings
Ranking Based On Selection: 7
Azim Nejatizadeh
Metrics
H-Index
i10 Index
Citation Counts
26
50
5,445
Medical Genetics
Cinical Genetics
Genetic Counseling
Neurogenetic
Hemoglobinopathies
Rankings
Ranking Based On Selection: 8
Abdolhossein Madani
Metrics
H-Index
i10 Index
Citation Counts
25
58
2,060
Rankings
Ranking Based On Selection: 9
Shahram Zare
Metrics
H-Index
i10 Index
Citation Counts
25
57
2,238
Rankings
Ranking Based On Selection: 10
Amin Ghanbarnejad
Metrics
H-Index
i10 Index
Citation Counts
24
52
1,768
Spatial Modeling
Bayesian
Time series
Count data Modeling
Rankings
Ranking Based On Selection: 11
Soheila Moein
Metrics
H-Index
i10 Index
Citation Counts
24
35
1,709
naturanl antioxidant
Iranian antioxidant plants
Rankings
Ranking Based On Selection: 12
Mohammad Shekari
Metrics
H-Index
i10 Index
Citation Counts
23
48
1,840
Rankings
Ranking Based On Selection: 13
Ebrahim Eftekhar
Metrics
H-Index
i10 Index
Citation Counts
22
33
4,713
Rankings
Ranking Based On Selection: 14
Nasibeh Roozbeh
Metrics
H-Index
i10 Index
Citation Counts
22
41
1,412
Rankings
Ranking Based On Selection: 15
Nepton Soltani
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,767
diabetes
vessel complication
insulin resistance
beta cell regeneration
Rankings
Ranking Based On Selection: 16
Ensieh Salehi
Metrics
H-Index
i10 Index
Citation Counts
20
31
3,061
Rankings
Ranking Based On Selection: 17
Mohsen Heidari
Metrics
H-Index
i10 Index
Citation Counts
20
33
2,748
Environmental Health Engineering
Rankings
Ranking Based On Selection: 18
Farhad Ghadiri Soufi
Metrics
H-Index
i10 Index
Citation Counts
20
23
1,186
Oxidative stress
inflammatory mediators and apoptosis
Rankings
Ranking Based On Selection: 20
Abdoreza Salahi Moghaddam
Metrics
H-Index
i10 Index
Citation Counts
19
28
948
Parasitology
Health GIS
Heralth
Ecology
Tropical disease
Rankings
Ranking Based On Selection: 21
Mohammad Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
17
21
796
Nutrition
Nutritional Epidemiology
clinical trial
Meta_analysis
Rankings
Ranking Based On Selection: 23
Parivash Davoodian
Metrics
H-Index
i10 Index
Citation Counts
17
24
1,158
Rankings
Ranking Based On Selection: 24
Mehraban Shahi
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,133
Toxicology
Medical Entomology
Scorpiology
Venomous & Toxic Arthropos
Rankings
Ranking Based On Selection: 25
Mohammadamin Emami
Metrics
H-Index
i10 Index
Citation Counts
17
22
844
Rankings
Ranking Based On Selection: 26
Omid Rahmanian
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,299
Rankings
Ranking Based On Selection: 27
Zahra Hosseini
Metrics
H-Index
i10 Index
Citation Counts
16
24
840
Rankings
Ranking Based On Selection: 28
Minoo Rajaei
Metrics
H-Index
i10 Index
Citation Counts
15
23
630
Rankings
Ranking Based On Selection: 29
Laleh Hassani
Metrics
H-Index
i10 Index
Citation Counts
15
20
923
Rankings
Ranking Based On Selection: 31
Maryam Azizi-Kutenaei
Metrics
H-Index
i10 Index
Citation Counts
14
16
605
Rankings
Ranking Based On Selection: 33
Elham Imani
Metrics
H-Index
i10 Index
Citation Counts
13
18
598
nursing
Development and psychometric testing of instrument
qualitative research
factor analysis
Rankings
Ranking Based On Selection: 34
Kavoos Dindarloo
Metrics
H-Index
i10 Index
Citation Counts
13
18
917
Environmental Health Engineering
Rankings
Ranking Based On Selection: 35
Azin Alavi
Metrics
H-Index
i10 Index
Citation Counts
13
18
846
Rankings
Ranking Based On Selection: 36
Hamidreza Samimagham
Metrics
H-Index
i10 Index
Citation Counts
13
16
654
Rankings
Ranking Based On Selection: 37
Habibollah Turki
Metrics
H-Index
i10 Index
Citation Counts
12
15
585
Rankings
Ranking Based On Selection: 38
Mahmoud Omidi
Metrics
H-Index
i10 Index
Citation Counts
12
19
379
Rankings
Ranking Based On Selection: 39
Pooneh Nikuei
Metrics
H-Index
i10 Index
Citation Counts
12
15
889
Rankings
Ranking Based On Selection: 40
Farid Khorrami
Metrics
H-Index
i10 Index
Citation Counts
12
15
384
Health information technology
EHR
Terminological Systems، Registry
Rankings
Ranking Based On Selection: 41
Leili Darvish
Metrics
H-Index
i10 Index
Citation Counts
12
14
348
Rankings
Ranking Based On Selection: 42
Yaghoob Hamedi
Metrics
H-Index
i10 Index
Citation Counts
12
13
451
Rankings
Ranking Based On Selection: 43
Shahram Baghestani
Metrics
H-Index
i10 Index
Citation Counts
12
13
327
Rankings
Ranking Based On Selection: 44
Masoumeh Kheirandish
Metrics
H-Index
i10 Index
Citation Counts
11
12
505
Rankings
Ranking Based On Selection: 45
Reza Alipoor
Metrics
H-Index
i10 Index
Citation Counts
11
12
445
Rankings
Ranking Based On Selection: 46
Ali Heyrani
Metrics
H-Index
i10 Index
Citation Counts
11
14
505
systems thinking
healthcare management/ policy
change management
clinical governance
quality improvement
Rankings
Ranking Based On Selection: 47
Salimeh Mirzaei
Metrics
H-Index
i10 Index
Citation Counts
11
11
482
Rankings
Ranking Based On Selection: 48
Asiyeh Pormehr
Metrics
H-Index
i10 Index
Citation Counts
11
11
384
Mother and Child Welfare
Rankings
Ranking Based On Selection: 49
Tasnim Eghbal Eftekhaari
Metrics
H-Index
i10 Index
Citation Counts
11
12
629
Rankings
Ranking Based On Selection: 50
Seyedhamid Moosavy
Metrics
H-Index
i10 Index
Citation Counts
11
11
497
Rankings
Ranking Based On Selection: 51
Zahra Mastaneh
Metrics
H-Index
i10 Index
Citation Counts
11
11
480
Health Information Management
Artificial Intelligence
Digital Health
Biometrics
Rankings
Ranking Based On Selection: 53
Tayebeh Baniasadi
Metrics
H-Index
i10 Index
Citation Counts
10
11
615
Rankings
Ranking Based On Selection: 54
Hossein Hafezi
Metrics
H-Index
i10 Index
Citation Counts
10
10
289
Dermatology
plastic surgery
skin surgery
laser
immunology
Rankings
Ranking Based On Selection: 55
Somayyeh Dehghani
Metrics
H-Index
i10 Index
Citation Counts
10
10
309
Environmental Health Engineering
Rankings
Ranking Based On Selection: 56
Niloofar Kahkeshani
Metrics
H-Index
i10 Index
Citation Counts
10
11
1,044
Chemistry and Pharmacology of Natural Products
Cannabinoids
Cancer
Alzheimer
Rankings
Ranking Based On Selection: 57
Nadereh Naderi
Metrics
H-Index
i10 Index
Citation Counts
10
11
440
Rankings
Ranking Based On Selection: 58
Fatemeh Dabiri
Metrics
H-Index
i10 Index
Citation Counts
10
10
434
Midwifery
Health Literacy
Sexual & Reproductive Health
Rankings
Ranking Based On Selection: 59
Seyed Hossein Asadi Yosefabad
Metrics
H-Index
i10 Index
Citation Counts
9
9
325
Rankings
Ranking Based On Selection: 60
Khadijeh Ahmadi
Metrics
H-Index
i10 Index
Citation Counts
9
7
489
Rankings
Ranking Based On Selection: 62
Ali Mouseli
Metrics
H-Index
i10 Index
Citation Counts
9
9
444
health care administration
Rankings
Ranking Based On Selection: 63
Abdolhamid Tajvar
Metrics
H-Index
i10 Index
Citation Counts
9
9
434
Occupational Health
Safety
Ergonomics
Accident Analysis
Risk Management
Rankings
Ranking Based On Selection: 64
Javad Mohajer Ansari
Metrics
H-Index
i10 Index
Citation Counts
9
9
269
Angiogenesis
Wound healing
Stem cell therapy
Rankings
Ranking Based On Selection: 66
Abbas Poudat
Metrics
H-Index
i10 Index
Citation Counts
9
9
260
Biology
Medical Entomology
Vector-born Disease
Rankings
Ranking Based On Selection: 67
Nader Alishan Karami
Metrics
H-Index
i10 Index
Citation Counts
9
9
248
Rankings
Ranking Based On Selection: 69
Farah Moayedi
Metrics
H-Index
i10 Index
Citation Counts
9
8
265
Rankings
Ranking Based On Selection: 70
Fariba Asadi-Noghabi
Metrics
H-Index
i10 Index
Citation Counts
9
7
373
Rankings
Ranking Based On Selection: 71
Samierh Abedini
Metrics
H-Index
i10 Index
Citation Counts
9
8
195
Rankings
Ranking Based On Selection: 72
Aghdas Dehghani
Metrics
H-Index
i10 Index
Citation Counts
8
8
259
Rankings
Ranking Based On Selection: 73
Somayeh Davoodi
Metrics
H-Index
i10 Index
Citation Counts
8
8
243
Rankings
Ranking Based On Selection: 74
Mahdieh Afkhami
Metrics
H-Index
i10 Index
Citation Counts
8
7
221
Rankings
Ranking Based On Selection: 76
Mohammad Zamani Rarani
Metrics
H-Index
i10 Index
Citation Counts
8
8
251
cancer targeted therapy
Rankings
Ranking Based On Selection: 77
Mina Tavassoli Farahi
Metrics
H-Index
i10 Index
Citation Counts
8
8
247
Rankings
Ranking Based On Selection: 78
Mehrdad Solati
Metrics
H-Index
i10 Index
Citation Counts
8
7
480
Rankings
Ranking Based On Selection: 79
Nahid Moradi
Metrics
H-Index
i10 Index
Citation Counts
8
8
205
Effective extract drug plants on Bacteria
Mechanisms of Antimicrobial resistance in Bacteria
Rankings
Ranking Based On Selection: 80
Aziz Rahimizadeh
Metrics
H-Index
i10 Index
Citation Counts
8
7
366
Pre-hospital and hospital emergency Disaster risk management Nursing in disasters Hospital preparedness program Mass c
Rankings
Ranking Based On Selection: 81
Sepehr Rasekhi
Metrics
H-Index
i10 Index
Citation Counts
8
7
228
Medical Education
Mental Health
Medicine
Rankings
Ranking Based On Selection: 82
Mohammad Ali Molavi
Metrics
H-Index
i10 Index
Citation Counts
8
6
189
Rankings
Ranking Based On Selection: 83
Khatereh Mahouri
Metrics
H-Index
i10 Index
Citation Counts
8
8
233
Rankings
Ranking Based On Selection: 85
Khadijeh Ahmadzadeh
Metrics
H-Index
i10 Index
Citation Counts
7
6
1,127
Rankings
Ranking Based On Selection: 87
Hosein Mardanparvar
Metrics
H-Index
i10 Index
Citation Counts
7
3
125
Rankings
Ranking Based On Selection: 89
N Khaghanzadeh
Metrics
H-Index
i10 Index
Citation Counts
7
6
178
Rankings
Ranking Based On Selection: 90
Shiva Mohammadi
Metrics
H-Index
i10 Index
Citation Counts
7
5
240
Rankings
Ranking Based On Selection: 91
Firoozeh Jafari
Metrics
H-Index
i10 Index
Citation Counts
7
6
177
Rankings
Ranking Based On Selection: 92
Marzieh Norouzian
Metrics
H-Index
i10 Index
Citation Counts
6
6
196
Rankings
Ranking Based On Selection: 93
Mehrdad Malekshoar
Metrics
H-Index
i10 Index
Citation Counts
6
6
133
Rankings
Ranking Based On Selection: 94
Afrooz Azad
Metrics
H-Index
i10 Index
Citation Counts
6
5
251
Rankings
Ranking Based On Selection: 95
Fariba Azarkish
Metrics
H-Index
i10 Index
Citation Counts
6
5
219
Rankings
Ranking Based On Selection: 96
Hamid Mahmoodi
Metrics
H-Index
i10 Index
Citation Counts
6
5
159
Rankings
Ranking Based On Selection: 98
Vahideh Atabaki
Metrics
H-Index
i10 Index
Citation Counts
6
3
152
Rankings
Ranking Based On Selection: 99
Habib Eslami
Metrics
H-Index
i10 Index
Citation Counts
6
4
286
Neurotoxicity
Neuroprotection
Neuropharmacology