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]
MD, the University of Tokyo, Faculty of Medicine, 1996
PhD, the University of Tokyo, Faculty of Medicine, 2005
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
Board Certified Physician of Japan Society of Ningen Dock

Dr. Kazutaka Takami
part-time physician of the Nihonbashi Muromachi Mitsui Tower Midtown Clinic

[Career]
MD, the University of Tokyo, Faculty of Medicine, 1991 Studied abroad at Washington University School of Medicine in St. Louis in 2000.

Dr. Takami previously held positions as a Court Physician on the Board of Chamberlains of the Imperial Household Agency and a lecturer in the Department of Respiratory Medicine at the University of Tokyo Hospital. After which, he served as the Head of the Department of Respiratory Medicine at Kanto Central Hospital of the Mutual Aid Association of Public School Teachers and as a part-time lecturer for the Institute of Medical Science, the University of Tokyo, before joining our team at the Nihonbashi Muromachi Mitsui Tower Midtown Clinic in April of 2023.

[Certifications]
Board Certified Member and Fellow of the Japanese Society of Internal Medicine
Board CertifiedMember and Senior Fellow of the Japanese Respiratory Society
Board Certified Bronchoscopy Member and Fellow of the Japan Society for Respiratory Endoscopy
Board Certified Allergist of the Japanese Society of Allergology
Designated Physician (Impaired respiratory function specialist) under Article 15 of the Act for the Welfare of Persons with Disabilities
Designated Physician for Intractable & Rare Diseases

Dr. Yasushi Yoshida
Respiratory Medicine

[Career]
MD, Chiba University, School of Medicine, 1994
PhD, Graduate of Chiba University, Graduate School of Medicine, 2003

Having completed his training at Chiba University Hospital, Dr. Yoshida assumed the position of Chief Medical Director of Respiratory Medicine at Chiba Cancer Center. Following his tenure there, he became Deputy Director of the Health Screening Center at Mitsuwadai General Hospital before accepting a position at our Nihonbashi Muromachi Mitsui Tower Midtown Clinic in April 2023.

[Certifications]
Fellow of the Japanese Society of Internal Medicine
Board Certified Member and Senior Fellow of the Japanese Respiratory Society
Board Certified Physician of Japan Society of Ningen Dock
Certified Ningen Dock Information Management Advisor

Diabetes Physicians

Dr. Yoshino Arai　

  • Doctor of Medicine, Veterinarian

    [Career]
    MD, the University of Tokyo, Faculty of Agriculture, Department of Veterinary Medicine, 2001
    MD, University of Tsukuba, School of Medicine, 2007
    PhD, Graduate of the University of Tokyo, Graduate School of Medicine, 2016
    Engaged in clinical practice at Showa General Hospital, University of Tokyo Hospital, and clinics in Tokyo.

  • [Certifications]
    Diabetologist of the Japan Diabetes Society
    Board Certified Member and Fellow of the Japanese Society of Internal Medicine

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