Dr Koshi Kumagai
| Area | Kanagawa |
| Medical institution affiliation | Kitasato University Hospital https://www.kitasato-u.ac.jp/khp/section/department/kokyukig.html |
| Medical specialties | Upper Gastrointestinal Surgery |
| Medical expertise | Minimally invasive surgery for gastric cancer and gastric submucosal tumor |
| Graduated University | Jikei University School of Medicine |
