Dr. Masakazu Yamamoto
| Area | Tochigi Prefecture |
| Medical institution affiliation | Utsunomiya Memorial Hospital https://www.nakayamakai.com/depts/shoukakigeka/doctor.php |
| Medical specialties | digestive surgery |
| Medical expertise | gastrointestinal surgery, hepatobiliary and pancreatic surgery |
| Graduated University | University of Tsukuba |
