Hiroshi Ohira, MD, PhD, is a graduate of Kitasato University School of Medicine. He trained in internal medicine at the Hokkaido University Hospital. He graduated from graduate school of Hokkaido University and received his PhD. Ohira has been practicing since 2003 at the Hokkaido University Hospital. Ohira worked as a cardiac imaging fellow at University of Ottawa Heart Institute from 2012 to 2015. Ohira works as an assistant professor of the first department of medicine at Hokkaido University School of Medicine since March 2015. Ohira's practice specializes in the cardiovascular diseases related to lung diseases such as cardiac sarcoidosis and pulmonary hypertension. Ohira is board certified in internal medicine, diabetes, and cardiology.