Dr. Naokata Sumitomo
| Prefecture | Saitama Prefecture |
| Belonging | Saitama Medical University International Medical Center https://www.international.saitama-med.ac.jp/detail2/d2-05/ |
| Specialized | paediatric cardiology |
| Experienced | catheter ablation, treatment of arrhythmias (paediatric and adult congenital heart disease) |
| Graduated University |
