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Top institutions in Japan for Gastroenterology & Hepatology

8 institutions · Gastroenterology & Hepatology · Japan

Which institutions in Japan have the most top-cited scientists in Gastroenterology & Hepatology?

136 researchers in Japan whose main subfield is Gastroenterology & Hepatology are in the 2026 list of top-cited scientists, the annual ranking often called the Stanford–Elsevier top 2% scientists list: 2.4% of all listed authors in Japan, and 4th of 54 countries in the subfield. 47 of them rank in the global top 100,000 by composite citation score (c, excluding self-citations). Graduate School of Medicine has the most (11), followed by Kurume University School of Medicine (4) and Showa University Yokohama Northern Hospital (4). A row opens its scientists in the table of all authors.

Listed authors
136
2.4% of all in Japan
In the global top 100,000
47
34.6% of them
Country rank in the subfield
#4
of 54 countries in Gastroenterology & Hepatology
Highest-ranked
#238
Kudo, Masotoshi
#InstitutionListed authorsTop 100kRank worldwideHighest-ranked author
1Graduate School of Medicine112#17Koike, Kazuhiko #31,034
2Kurume University School of Medicine42#135Ng, Cheng Han #44,771
3Showa University Yokohama Northern Hospital42#151Mori, Yuichi #91,541
4Kindai University School of Medicine32#160Kudo, Masotoshi #238
5Jichi Medical University32#194Sugano, Kentaro #51,672
6Graduate School of Medical Science31#196Naito, Yuji #54,665
7Tokyo Medical University32#209Itoi, Takao #85,966
8Osaka Metropolitan University Graduate School of Medicine30#235Kubo, Shoji #222,863

The top 100 in Gastroenterology & Hepatology in Japan, in order

  1. 1
    Kudo, Masotoshi
    Kindai University School of Medicine
  2. 2
    Yamaoka, Yoshio Y.
    Oita University Faculty of Medicine
  3. 3
    Tanaka, Atsushi
    Teikyo University School of Medicine
  4. 4
    Koike, Kazuhiko
    Graduate School of Medicine
  5. 5
    Kamisawa, Terumi
    Tokyo Metropolitan Komagome Hospital
  6. 6
    Nakase, Hiroshi
    Sapporo Medical University
  7. 7
    Fujishiro, M.
    Graduate School of Medicine
  8. 8
    Andoh, Akira
    Shiga University of Medical Science
  9. 9
    Omata, Masao
    Yamanashi Prefectural Central Hospital
  10. 10
    Toyoda, Hidenori
    Ogaki Municipal Hospital
  11. 11
    Nishida, Naoshi
    Kindai University School of Medicine
  12. 12
    Hibi, Toshifumi
    Kitasato University Kitasato Institute Hospital
  13. 13
    Ng, Cheng Han
    Kurume University School of Medicine
  14. 14
    Kobayashi, Taku
    Kitasato University Kitasato Institute Hospital
  15. 15
    Sugano, Kentaro
    Jichi Medical University
  16. 16
    Kanai, Takanaori
    Keio University School of Medicine
  17. 17
    Yoshiji, Hitoshi
    Nara Medical University
  18. 18
    Naito, Yuji
    Graduate School of Medical Science
  19. 19
    Matsuoka, Katsuyoshi
    Toho University
  20. 20
    Gotoda, Takushi
    Nihon University School of Medicine
  21. 21
    Nakajima, Atsushi
    School of Medicine
  22. 22
    Fukudo, Shin
    Tohoku University School of Medicine
  23. 23
    Oshima, Tadayuki
    Nagoya City University West Medical Center
  24. 24
    Masamune, Atsushi
    Tohoku University School of Medicine
  25. 25
    Kawaguchi, Takumi
    Kurume University School of Medicine
  26. 26
    Yamamoto, Takayuki
    Yokkaichi Hazu Medical Center
  27. 27
    Saito, Yutaka
    National Cancer Center Hospital
  28. 28
    Ishihara, Ryu
    Osaka International Cancer Institute
  29. 29
    Fukui, Hiroshi
    Nara Medical University
  30. 30
    Yamamoto, Hironori
    Jichi Medical University
  31. 31
    Nakanuma, Yasuni
    Fukui-ken Saiseikai Hospital
  32. 32
    Inoue, Haruhiro
    Showa Medical University
  33. 33
    Shimosegawa, Tooru
    Japanese Society of Gastroenterology
  34. 34
    Suzuki, Hidekazu
    Tokai University School of Medicine
  35. 35
    Yao, Kenshi
    Chikushi Hospital
  36. 36
    Chayama, Kazuaki
    Hiroshima Institute of Life Sciences
  37. 37
    Ono, Hiroyuki
    Shizuoka Cancer Center
  38. 38
    Ito, Tetsuhide
    Sanno Hospital
  39. 39
    Yoneda, Masato
    School of Medicine
  40. 40
    Itoi, Takao
    Tokyo Medical University
  41. 41
    Nakai, Yousuke
    Tokyo Women's Medical University
  42. 42
    Kitano, Masayuki
    Wakayama Medical University
  43. 43
    Okazaki, Kazuichi
    Kansai Medical University
  44. 44
    Mori, Yuichi
    Showa University Yokohama Northern Hospital
  45. 45
    Dixon, Michael F.
    Tokyo Medical University
  46. 46
    Tanaka, Shinji
    JA Onomichi General Hospital
  47. 47
    Kudo, Shinei
    Showa University Yokohama Northern Hospital
  48. 48
    Torimura, Takuji
    Local Incorporated Administrative Agency Omuta City Hospital
  49. 49
    Koga, Yasuhiro
    Tokai University School of Medicine
  50. 50
    Takehara, Tetsurou
    Graduate School of Medicine
  51. 51
    Miwa, Hiroto
    The Japanese Gastroenterological Association
  52. 52
    Nishikawa, Hiroki
    Osaka Medical and Pharmaceutical University
  53. 53
    Matsuda, Takahisa
    Toho University Medical Center Omori Hospital
  54. 54
    Tamaki, Nobuharu
    Japanese Red Cross Musashino Hospital
  55. 55
    Naganuma, Makoto
    Kansai Medical University
  56. 56
    Yoshikawa, Toshikazu
    Louis Pasteur Center for Medical Research
  57. 57
    Sugano, Kentaro
    Jichi Medical University
  58. 58
    Mizoguchi, Atsushi
    Kurume University School of Medicine
  59. 59
    Tokushige, Katsutoshi
    Tokyo Women's Medical University
  60. 60
    Sugimoto, Ken
    Hamamatsu University School of Medicine
  61. 61
    Maeda, Shin
    Graduate School of Medicine
  62. 62
    Okumura, Toshikatsu
    Asahikawa Medical University
  63. 63
    Hiraoka, Atsushi
    Ehime Prefectural Central Hospital
  64. 64
    Tazuma, Susumu
    JR Hiroshima Hospital
  65. 65
    Oyama, Tsuneo
    Saku Central Hospital
  66. 66
    Watanabe, Mamoru
    Juntendo University Graduate School of Medicine
  67. 67
    Komuta, Mina
    International University of Health and Welfare
  68. 68
    Tanaka, Yasuhito
    Kumamoto University
  69. 69
    Tanaka, Masao
    Graduate School of Medical Sciences
  70. 70
    Hayakawa, Yoku
    Graduate School of Medicine
  71. 71
    Sumida, Yoshio
    International University of Healthcare and Welfare
  72. 72
    Kumada, Takashi
    Ogaki Municipal Hospital
  73. 73
    Tateishi, Ryosuke
    Graduate School of Medicine
  74. 74
    Shimizu, Masahito
    Graduate School of Medicine
  75. 75
    Harada, Kenichi
    Kanazawa University School of Medicine
  76. 76
    Takagi, Tomohisa
    Graduate School of Medical Science
  77. 77
    Nishida, Atsushi
    Shiga University of Medical Science
  78. 78
    Tada, Toshifumi
    Graduate School of Medicine
  79. 79
    Masaki, Tsutomu
    Kagawa Saiseikai Hospital
  80. 80
    Takahashi, Hirokazu
    Faculty of Medicine
  81. 81
    Asaka, Masahiro
    Caress Memorial Hospital
  82. 82
    Nakagawa, Hayato
    Mie University
  83. 83
    Chiba, Tutomu
    Kansai Electric Power Co., Inc.
  84. 84
    Haruma, Ken
    Kawasaki Medical School
  85. 85
    Takahashi, Toku
    Integrative Medicine
  86. 86
    Yahagi, Naohisa
    Keio University School of Medicine
  87. 87
    Nakase, Hiroshi
    Sapporo Medical University School of Medicine
  88. 88
    Fujiwara, Naoto
    Mie University
  89. 89
    Itoi, Takao
    Tokyo Medical University
  90. 90
    Tajiri, Hisao
    The Jikei University School of Medicine
  91. 91
    Okanoue, Takeshi
    Saiseikai Suita Hospital
  92. 92
    Hirai, Fumihito
    Fukuoka University
  93. 93
    Yamashita, Tatsuya
    Public Central Hospital of Matto Ishikawa
  94. 94
    Kinoshita, Yoshikazu
    Shimane University
  95. 95
    Uemura, Naomi
    National Kohnodai Medical Center
  96. 96
    Imajo, Kento
    Yokohama City University
  97. 97
    Iwakiri, Katsuhiko
    Graduate School of Medicine
  98. 98
    Kato, Mototsugu
    Hokkaido Cancer Society
  99. 99
    Isomoto, Hajime
    Tottori University Faculty of Medicine
  100. 100
    Higuchi, Kazuhide
    Osaka Medical and Pharmaceutical University

136 listed scientists in Gastroenterology & Hepatology in Japan

See all 136 in the interactive table →

This page online: https://topcitedscientists.com/fields/japan/gastroenterology-hepatology/

Data: Ioannidis, John P.A. (2026), ‘August 2026 data-update for “Updated science-wide author databases of standardized citation indicators”’, Mendeley Data, v9, doi:10.17632/btchxktzyw.9. 2026 list, ranked by composite citation score (c) excluding self-citations.

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