Takashi Watari, MD, MHQS, MCTM, Ph.D is an Associate professor of General Medicine Center, Shimane University Hospital, in Japan. Takashi is a hospitalist who completed General Internal Medicine training in Japan and obtained his medical degree at Okayama University and Master of Science at Kobe University, Japan, before pursuing a Master’s degree in Clinical Tropical Medicine at the Mahidol University, Bangkok, Thailand. He completed the Harvard Medical School Global Clinical Scholar Research Training program in 2019, Harvard Medical School Master of Healthcare Quality and Safety because he believed there is a strong demand to train academic hospitalists in Japan. Exposure to undergraduate and postgraduate medical education led him to pursue research on diagnostic error, clinical education, disruptive physician behavior. He is a member of the expert committee of Diagnostic Error in Medicine Japan, The Japanese Society of Internal Medicine.