Dr. Koichiro Tatsumi
| Area | Chiba Prefecture |
| Medical institution affiliation | Chiba University Hospital https://www.m.chiba-u.ac.jp/dept/respir/about/member1/ |
| Medical specialties | respiratory medicine |
| Medical expertise | COPD (chronic obstructive pulmonary disease), interstitial pneumonia, pulmonary hypertension, SAS |
| Graduated University | Chiba University |
