Dr. Hirokuni Arai
| Prefecture | Nagano Prefecture |
| Belonging | HOKUSHIN GENERAL HOSPITAL https://www.hokushin-hosp.jp/about/section/cardiovascular-surgery/ |
| Specialized | cardiovascular surgery |
| Experienced | coronary artery bypass surgery, mitral valvuloplasty, implantable assistive heart surgery, stent grafting for thoracic and abdominal aortic aneurysms |
| Graduated University | Tokyo Medical and Dental University |
