Dr. Yumi Mashimo
| Area | Saitama Prefecture |
| Medical institution affiliation | Saitama Medical University International Medical Center https://www.international.saitama-med.ac.jp/ |
| Medical specialties | gastroenterology |
| Medical expertise | endoscopic treatment of tumours of the gastrointestinal tract (oesophagus, stomach, colon), including endoscopic submucosal dissection (ESD) |
| Graduated University | Saitama Medical University |
