Meet Your Providers

Redefining healthcare with a touch of hospitality

We are there with you every step of the way, committed to leading you to better health and enhanced life. Our group is devoted to bringing the touch of hospitality to healthcare, providing care day in and day out to embody this ideal within Japanese society. Feel free to contact us for your primary care needs.

Dr. Keisuke Hata
Director of the Nihonbashi Muromachi Mitsui Tower Midtown Clinic
Greetings from the Clinic Director ＞

[Career]
PhD, the University of Tokyo, Faculty of Medicine, 2005
MD, the University of Tokyo, Faculty of Medicine, 1996
Former Court Physician, Board of Chamberlains, Imperial Household Agency
Former Instructor, Oncology Surgery and Cancer Professional Training Plan, University of Tokyo Hospital

[Certifications]
Board Certified Surgeon by the Japan Surgical Society
Board Certified Coloproctologist and Instructor by the Japan Society of Coloproctology
Board Certified Gastroenterologist and Instructor by the Japanese Society of Gastroenterology
Board Certified Gastrointestinal Endoscopist, Instructor, and Councilor (Kanto Branch) by the Japan Gastroenterological Endoscopy Society
Board Certified Gastroenterologist by the Japanese Gastrointestinal Association

Gastroenterologists

Dr. Kenshi Matsumoto

  • MD, Juntendo University, Faculty of Medicine, 1997
    Upon completing his residency at Juntendo University Hospital, Dr. Matsumoto joined the Department of Internal Medicine at the Institute of Gastroenterology at Tokyo Women’s Medical University, where he became an associate. Since then, he has worked as an assistant professor at Juntendo University Nerima Hospital before becoming an associate professor at Juntendo University’s Department of Medicine, Division of Gastroenterology and a part-time lecturer for the Department of Gastroenterology at Tokyo Women’s Medical University, School of Medicine.
    He joined the Nihonbashi Muromachi Mitsui Tower Clinic team in April 2021.

  • [Certifications]
    Board Certified Member of the Japanese Society of Internal Medicine
    Board Certified Fellow, Trainer, Kanto District Councilor, and Academic Councilor of the Japan Gastroenterological Endoscopy Society
    Board Certified Gastroenterologist, Trainer, and Kanto District Councilor of the Japanese Society of Gastroenterology
    Board Certified Gastroenterologist and Councilor of the Japanese Gastroenterological Association
    The Japanese Society for Helicobacter Research Fellow (JSHRF)
    Objective Structured Clinical Exam (OSCE) Examiner

  • Dr. Hidetaka Okubo
    MD, Department of Medicine, Kyushu University School of Medicine, 2009
    Dr. Okubo completed his initial training at the Japan Community Healthcare Organization Kyushu Hospital (former Kyushu Welfare Pension Hospital) and has been working as a postgraduate trainee, fellow, and medical staff member of the Department of Gastroenterology at the Center Hospital of the National Center for Global Health and Medicine since 2011.

  • [Certifications]
    Fellow of the Japanese Society of Internal Medicine
    Board Certified Gastrointestinal Endoscopist by the Japan Gastroenterological Endoscopy Society
    Board Certified Gastroenterologist by the Japanese Society of Gastroenterology
    Board Certified Hepatologist by the Japan Society of Hepatology