Dr. Ohata Ken
| Prefecture | Tokyo Metropolis |
| Belonging | NTT Medical Center Tokyo https://www.nmct.ntt-east.co.jp/ |
| Specialized | gastroenterology |
| Experienced | diagnosis and treatment by gastrointestinal endoscopy (endoscopic treatment of early-stage oesophageal cancer, gastric cancer, colorectal cancer and duodenal tumours) |
| Graduated University | Nihon University |
