Dr. Kazuki Sumiyama
| Prefecture | Tokyo Metropolis |
| Belonging | The Jikei University Hospital https://www.hosp.jikei.ac.jp/diagnosis/department/510.html |
| Specialized | gastroenterology |
| Experienced | endoscopic diagnostic and therapeutic procedures in the gastrointestinal field, natural orifice translumenal endoscopic surgery ( natural orifice translumenal endoscopic surgery) |
| Graduated University | Jikei University School of Medicine |
