Dr. Hirokuni Arai
| Area | Nagano Prefecture |
| Medical institution affiliation | HOKUSHIN GENERAL HOSPITAL https://www.hokushin-hosp.jp/about/section/cardiovascular-surgery/ |
| Medical specialties | cardiovascular surgery |
| Medical expertise | 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 |
