Members of the Board of Directors of the JGA
27 members (in an alphabetical order): As of March 10, 2025
| CHAIRPERSON | |
| Akihito NAGAHARA, M.D., Ph.D. | Professor, Department of Gastroenterology, Juntendo University School of Medicine |
| VICE CHAIRPERSON | |
| Hiromi KATAOKA, M.D., Ph.D. | Professor, Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences |
| AUDITORS | |
| Yasuhiro FUJIWARA, M.D., Ph.D. | Professor, Department of Gastroenterology, Osaka Metropolitan University Graduate School of Medicine |
| Hiroyuki IMAEDA, M.D., Ph.D. | Professor, Department of Gastroenterology, Saitama Medical University |
| DIRECTORS | |
| Motohiro ESAKI, M.D., Ph.D. | Professor, Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University |
| Takanori GOI, M.D., Ph.D. | Professor, Department of Gastroenterological Surgery, University of Fukui |
| Yoichi HIASA, M.D., Ph.D. | Professor, Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine |
| Tadakazu HISAMATSU, M.D., Ph.D. | Professor, Department of Gastroenterology and Hepatology, Kyorin University School of Medicine |
| Ryota HOKARI, M.D., Ph.D. | Professor, Department of Internal Medicine, National Defense Medical College |
| Hiroki IKEUCHI, M.D., Ph.D. | Professor, Department of Inflammatory Bowel Disease Surgery, Hyogo College of Medicine |
| Atsushi IRISAWA, M.D., Ph.D. | Professor, Department of Gastroenterology, Dokkyo Medical University |
| Shunji ISHIHARA, M.D., Ph.D. | Professor, Department of Internal Medicine II, Shimane University Faculty of Medicine |
| Hajime ISOMOTO, M.D., Ph.D. | Professor, Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine |
| Takao ITOI, M.D., Ph.D. | Professor and Chair, Department of Gastroenterology and Hepatology, Tokyo Medical University |
| Takanori KANAI, M.D., Ph.D. | Professor, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine |
| Takayuki MATSUMOTO, M.D., Ph.D. | Professor, Division of Gastroenterology, Department of Internal Medicine, Iwate Medical University |
| Makoto NAGANUMA, M.D., Ph.D. | Professor, Division of Gastroenterology and Hepatology, Third Department of Internal Medicine, Kansai Medical University |
| Yoshiko NAKAYAMA, M.D., Ph.D. | Professor, Department of Pediatrics, Shinshu University School of Medicine |
| Satoshi NIMURA, M.D., Ph.D. | Professor, Department of Pathology, Fukuoka University Chikushi Hospital |
| Sachiyo NOMURA, M.D., Ph.D. | Professor, Clinical Pharmaceutical Sciences, Hoshi University |
| Shiro OKA, M.D., Ph.D. | Professor, Department of Gastroenterology, Hiroshima University Hospital |
| Yutaka SAITO, M.D., Ph.D. | Chief and Director of Gastrointestinal Endoscopy, Endoscopy Division, National Cancer Center Hospital |
| Hidekazu SUZUKI, M.D., Ph.D. | Professor, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine |
| Hiroya TAKEUCHI, M.D., Ph.D. | Professor, Department of Surgery, Hamamatsu University School of Medicine |
| Toshio URAOKA, M.D., Ph.D. | Professor, Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine |
| Masayuki WATANABE, M.D., Ph.D. | Director of the Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research |
| Takatsugu YAMAMOTO, M.D., Ph.D. | Professor, Department of Internal Medicine, Teikyo University School of Medicine |