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doctorList of Renowned Physicians

We introduce Japan's leading physicians. At BeMEC, we have built relationships with doctors who possess high expertise and outstanding track records across numerous medical specialties.
Among them, we carefully select and list only the most trusted physicians. We hope that by viewing each doctor's personality and area of expertise, you can get a glimpse of the BeMEC network.

※This page features a selection of the physicians available through BeMEC.

  • Visiting Professor, Department of Hepatology, Biliary and Pancreatic Gastroenterology, Yokohama City University School of Medicine Invited Professor, Graduate School of Medicine, Osaka University Part-time Lecturer, Tokyo Women's Medical University Adachi Medical Center

    Masafumi Ono(Ono Masafumi)

    Fatty liver disease / Alcoholic liver injury

    Career

    • 1990Graduated from Kochi Medical School, Faculty of Medicine
    • 1998Completed Graduate School of Medicine, Kochi Medical School
    • 1998Assistant, First Department of Internal Medicine, Kochi Medical School
    • 2000Research Fellow, Division of Infectious Diseases, Baylor College of Medicine (USA)
    • 2001Research Fellow, Division of Gastroenterology, Johns Hopkins University (USA)
    • 2015Associate Professor, Kochi University Hospital
    • 2019Associate Professor, Department of Internal Medicine, Tokyo Women's Medical University East Medical Center
    • 2021Professor, Department of Hepatology, Biliary and Pancreatic Medicine, Advanced Medicine, Kagawa University School of Medicine
    • 2024Invited Professor, Graduate School of Medicine, Osaka University (concurrent)
    • 2025Visiting Professor, Department of Hepatology, Biliary and Pancreatic Gastroenterology, Yokohama City University School of Medicine

  • Professor Emeritus, Department of Gastroenterology, Juntendo University School of Medicine

    Sumio Watanabe(Watanabe Sumio)

    Fatty liver disease

    Career

    • March 1976Graduated from Juntendo University School of Medicine
    • July 1980Assistant, Department of Gastroenterology, Juntendo University School of Medicine
    • September 1981Research Fellow, Department of Pathology, University of Toronto (The Hospital for Sick Children), Canada
    • July 1995Associate Professor, Department of Gastroenterology, Juntendo University
    • February 1999Professor, First Department of Internal Medicine, Akita University
    • September 2006Chief Professor, Department of Gastroenterology, Juntendo University School of Medicine
    • April 2017Professor Emeritus, Department of Gastroenterology, Juntendo University School of Medicine

  • Director, Center for Infection Control Science Education and Research, Tokyo Healthcare University

    Kyoji Moriya(Moriya Kyoji)

    Infectious diseases / Viral hepatitis

    Career

    • Former Professor, Department of Infection Control and Prevention, University of Tokyo School of Medicine
    • Special Researcher, Health and Wellness Promotion Headquarters, University of Tokyo
    • 1989Graduated from Faculty of Medicine, University of Tokyo School of Medicine
    • 1999Assistant, Department of Gastroenterology, University of Tokyo Hospital
    • 2001Lecturer, Department of Clinical Laboratory Medicine, University of Tokyo Hospital
    • 2002Lecturer, Department of Infection Control, University of Tokyo Hospital
    • 2009Professor, Department of Infection Control and Prevention, Graduate School of Medicine, University of Tokyo
    • 2009Professor, Department of Infection Control and Prevention, Graduate School of Medicine, University of Tokyo
    • 2009Professor, Department of Infection Control and Prevention, Graduate School of Medicine, University of Tokyo
      / Director, Department of Infection Control, University of Tokyo Hospital
      / Director, Infection Control Center
    • 2023Director, Center for Infection Control Science Education and Research, Tokyo Healthcare University

  • Professor, Division of Breast and Endocrine Surgery, Department of Surgery, Osaka University Graduate School of Medicine

    Kenzo Shimazu(Shimazu Kenzo)

    Breast cancer

    Career

    • 1994Graduated from Faculty of Medicine, Osaka University School of Medicine
    • 1996Medical Staff, Department of Surgery, Tokyo Metropolitan Komagome Hospital
    • 2003Chief Surgeon, Department of Surgery, JCHO Osaka Hospital
    • 2006Project Assistant Professor, Division of Breast and Endocrine Surgery, Department of Surgery, Osaka University Graduate School of Medicine
    • 2007Assistant Professor, Division of Breast and Endocrine Surgery, Department of Surgery, Osaka University Graduate School of Medicine
    • 2012Lecturer, Division of Breast and Endocrine Surgery, Department of Surgery, Osaka University Graduate School of Medicine
    • 2020Professor, Division of Breast and Endocrine Surgery, Department of Surgery, Osaka University Graduate School of Medicine

  • Director and Professor, Tokushima University Hospital

    Koichi Sairyo(Sairyo Koichi)

    Lumbar disc herniation

    Career

    • 1988Graduated from Tokushima University School of Medicine
    • 1994Completed Graduate School, Tokushima University
    • 1995Studied at University of Iowa Spine Center (USA)
    • 1997Medical Staff, Department of Orthopedic Surgery, Tokushima University
    • 1998Assistant, same department
    • 1999Lecturer, same department
    • 2003Studied at University of Toledo, Department of Orthopedic Surgery (USA)
    • 2006Returned as Lecturer, Department of Musculoskeletal Surgery, Tokushima University Graduate School
    • 2008Certified by the Japanese Orthopaedic Association as a Spine Endoscopic Surgery and Technical Certified Physician (Posterior Technique)
    • 2010Associate Professor, Teikyo University School of Medicine Mizonokuchi Hospital
    • 2013Professor, Department of Musculoskeletal Surgery (Orthopedics), Tokushima University
    • 2025Director, Tokushima University Hospital

  • Chief Professor, Department of Urology, Juntendo University Graduate School of Medicine

    Shigeo Horie(Horie Shigeo)

    Prostate cancer

    Career

    • 1985Graduated from University of Tokyo School of Medicine
    • 1988Obtained medical license in Texas, USA; conducted nephrology research at University of Texas Southwestern Medical Center; subsequently engaged in clinical practice of kidney transplantation and urology at Parkland Memorial Hospital and Methodist Hospital
    • 1995Staff, National Cancer Center Hospital
    • 1998Lecturer, Department of Urology, Graduate School of Medicine, University of Tokyo
    • 2002Associate Professor, Department of Urology, Kyorin University School of Medicine
    • 2003Chief Professor, Department of Urology, Teikyo University School of Medicine
    • 2012Chief Professor, Department of Urology, Juntendo University Graduate School of Medicine

  • Keijinkai Matsushima Hospital Director

    Nobuyoshi Miyajima(Miyajima Nobuyoshi)

    Colorectal and Anal Diseases

    Career

    • 1982Graduated from Keio University School of Medicine
    • 1985Assistant, Department of Surgery, Keio University School of Medicine
    • 1990Obtained Doctor of Medicine degree
    • 1990Lecturer, Department of Surgery, Fujita Health University School of Medicine
    • 1997Associate Professor, Department of Surgery, Teikyo University School of Medicine Mizonokuchi Hospital
    • 2007Professor, Department of Gastroenterology and General Surgery, St. Marianna University School of Medicine
    • 2014Appointed Director of St. Marianna University Toyoko Hospital
    • 2021Appointed Vice Director of Keijinkai Matsushima Hospital
    • 2021Appointed Director of Keijinkai Matsushima Hospital

  • Juntendo University School of Medicine, Department of Neurosurgery, Assigned Professor (Chief Professor)

    Akihide Kondo(Kondo Akihide)

    Brain Tumor

    Career

    • 1999Graduated from Juntendo University School of Medicine
    • 2003Assistant, Department of Neurosurgery, Juntendo University School of Medicine
    • 2005Certified by the Japan Neurosurgical Society
    • 2007RIKEN (Institute of Physical and Chemical Research)
    • 2007Northwestern University, USA
    • 2010Assistant Professor, Department of Neurosurgery, Juntendo University School of Medicine
    • 2012Associate Professor, Department of Neurosurgery, Juntendo University School of Medicine
    • 2019Senior Associate Professor (Assistant Professor), Department of Neurosurgery, Juntendo University School of Medicine
    • 2020Assigned Professor (Chief Professor), Department of Neurosurgery, Juntendo University School of Medicine

※This page features a selection of doctors available through BeMEC.