Citation Rankings
Highly Cited Researchers
National Hospital Organization Highly Cited Researchers Citation Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Rankings and Social Sciences and Humanities Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There is still much work to be done in this area. 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
Ranking Based On Selection :1
hematology
oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,865
17,095
0.336
* Total Citation Counts Rankings
Ranking Based On Selection :2
Parkinson disease
Parkinsonism
Dementia with Lewy bodies
Synuclein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,137
4,438
0.245
* Total Citation Counts Rankings
Ranking Based On Selection :3
Pulmonary Circulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,039
4,383
0.485
* Total Citation Counts Rankings
Ranking Based On Selection :4
Health Informatics
Health Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,722
4,317
0.495
* Total Citation Counts Rankings
Ranking Based On Selection :5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,053
3,617
0.513
* Total Citation Counts Rankings
Ranking Based On Selection :6
Sleep medicine
Movement disorder
Dementia
Osteoporosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,104
1,994
0.327
* Total Citation Counts Rankings
Ranking Based On Selection :7
Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,069
1,529
0.252
* Total Citation Counts Rankings
Ranking Based On Selection :8
外科 医療 経営
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,521
1,684
0.372
* Total Citation Counts Rankings
Ranking Based On Selection :9
Gastroenterology
Clinical Oncology
Clinical Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,391
2,352
0.694
* Total Citation Counts Rankings
Ranking Based On Selection :10
Neurology
Neuroimaging
Parkinson's disease
Olfaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,482
1,429
0.576
* Total Citation Counts Rankings
Ranking Based On Selection :11
Interventional Cardiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,859
1,184
0.637
* Total Citation Counts Rankings
Ranking Based On Selection :12
顎口腔領域の臨床神経生理学
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
593
0.341
* Total Citation Counts Rankings
Ranking Based On Selection :13
Neurology
Neuroscience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,628
788
0.484
* Total Citation Counts Rankings
Ranking Based On Selection :14
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,360
269
0.198
* Total Citation Counts Rankings
Ranking Based On Selection :15
Valve surgery
Coronary Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,262
738
0.585
* Total Citation Counts Rankings
Ranking Based On Selection :16
food allergy
pediatrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,191
921
0.773
* Total Citation Counts Rankings
Ranking Based On Selection :17
Chronic HepatitisB
Autophagy
NASH
Hepatitis A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
885
717
0.810
* Total Citation Counts Rankings
Ranking Based On Selection :18
Radiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
798
153
0.192
* Total Citation Counts Rankings
Ranking Based On Selection :19
Respiratory Medicine
Medical Oncology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
693
510
0.736
* Total Citation Counts Rankings
Ranking Based On Selection :20
Supportive care in cancer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
658
357
0.543
* Total Citation Counts Rankings
Ranking Based On Selection :21
cardiovascular surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
565
268
0.474
* Total Citation Counts Rankings
Ranking Based On Selection :22
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
161
0.615
* Total Citation Counts Rankings
Ranking Based On Selection :23
Plastic and Reconstructive Surgery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
248
0.961
* Total Citation Counts Rankings
Ranking Based On Selection :24
Head and Neck Cancer
Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
213
0.922
* Total Citation Counts Rankings
Ranking Based On Selection :25
Neurology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201
182
0.905
* Total Citation Counts Rankings
Rankings
9,375
113
1
Ranking Based On Selection: 1
Tomoki Naoe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,865
17,095
0.336
* Total Citation Counts Rankings
Rankings
44,909
682
2
Ranking Based On Selection: 2
Atsushi Takeda
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,137
4,438
0.245
Parkinson disease
Parkinsonism
Dementia with Lewy bodies
Synuclein
* Total Citation Counts Rankings
Rankings
107,405
1,985
3
Ranking Based On Selection: 3
Hiromi Matsubara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,039
4,383
0.485
* Total Citation Counts Rankings
Rankings
111,811
2,080
4
Ranking Based On Selection: 4
Hiromasa Horiguchi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,722
4,317
0.495
* Total Citation Counts Rankings
Rankings
141,254
2,753
5
Ranking Based On Selection: 5
Nishikawa K
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,053
3,617
0.513
* Total Citation Counts Rankings
Rankings
164,031
3,242
6
Ranking Based On Selection: 6
Mitsuhiro Yoshita
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,104
1,994
0.327
Sleep medicine
Movement disorder
Dementia
Osteoporosis
* Total Citation Counts Rankings
Rankings
164,985
3,268
7
Ranking Based On Selection: 7
Osamu Higuchi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,069
1,529
0.252
* Total Citation Counts Rankings
Rankings
219,666
4,490
8
Ranking Based On Selection: 8
Shigeki Morita
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,521
1,684
0.372
* Total Citation Counts Rankings
Rankings
284,020
5,821
9
Ranking Based On Selection: 9
Atsushi Naganuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,391
2,352
0.694
Gastroenterology
Clinical Oncology
Clinical Nutrition
* Total Citation Counts Rankings
Rankings
366,598
7,517
10
Ranking Based On Selection: 10
Toru Baba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,482
1,429
0.576
Neurology
Neuroimaging
Parkinson's disease
Olfaction
* Total Citation Counts Rankings
Rankings
453,810
9,283
11
Ranking Based On Selection: 11
Yoshinobu Murasato
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,859
1,184
0.637
* Total Citation Counts Rankings
Rankings
474,879
9,697
12
Ranking Based On Selection: 12
吉田和也
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,740
593
0.341
* Total Citation Counts Rankings
Rankings
496,836
10,103
13
Ranking Based On Selection: 13
Kenji Yamamoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,628
788
0.484
* Total Citation Counts Rankings
Rankings
557,660
11,214
14
Ranking Based On Selection: 14
Toshihiro Onohara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,360
269
0.198
* Total Citation Counts Rankings
Rankings
583,668
11,681
15
Ranking Based On Selection: 15
Dai Une
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,262
738
0.585
Valve surgery
Coronary Surgery
* Total Citation Counts Rankings
Rankings
603,777
12,050
16
Ranking Based On Selection: 16
Kiyotake Ogura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,191
921
0.773
food allergy
pediatrics
* Total Citation Counts Rankings
Rankings
710,147
13,766
17
Ranking Based On Selection: 17
Satoshi Tanaka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
885
717
0.810
* Total Citation Counts Rankings
Rankings
747,329
14,362
18
Ranking Based On Selection: 18
松林（名本）路花 Roka Namoto Matsubayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
798
153
0.192
* Total Citation Counts Rankings
Rankings
795,838
15,157
19
Ranking Based On Selection: 19
Takayuki Takimoto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
693
510
0.736
Respiratory Medicine
Medical Oncology
* Total Citation Counts Rankings
Rankings
813,729
15,435
20
Ranking Based On Selection: 20
Hironobu Hata
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
658
357
0.543
* Total Citation Counts Rankings
Rankings
863,288
16,221
21
Ranking Based On Selection: 21
Satoshi Takebayashi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
565
268
0.474
cardiovascular surgery
* Total Citation Counts Rankings
Rankings
1,160,109
20,573
22
Ranking Based On Selection: 22
Eriko Aikawa Takeyama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
161
0.615
* Total Citation Counts Rankings
Rankings
1,165,684
20,649
23
Ranking Based On Selection: 23
Nakamura Hideharu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
258
248
0.961
Plastic and Reconstructive Surgery
* Total Citation Counts Rankings
Rankings
1,211,889
21,295
24
Ranking Based On Selection: 24
Hirofumi Omori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
213
0.922
Head and Neck Cancer
Molecular Biology
* Total Citation Counts Rankings
Rankings
1,269,528
22,080
25
Ranking Based On Selection: 25
Katsuya Nishida
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
201
182
0.905