Family Medicine

What we do

A Family Medicine Physician (also known as a primary care doctor, personal physician, or family health advisor) is your first point of contact for any health concern or medical question for you and your family.

By building a continuous, long-term relationship with you, our family physicians are specially trained to deliver optimal, personalized medical care that respects your lifestyle, family environment, workplace dynamics, and personal priorities.

We serve as specialists in "YOU"—providing comprehensive primary care across all ages, genders, organs, and health conditions without limitations. When a condition requires highly specialized subspecialty care, we do not simply refer you away; we stay by your side as your advocate and advisor, collaborating closely with subspecialists to coordinate your care seamlessly.

Key Clinical Focus Areas

Continuous & Holistic Care: Dedicated to understanding your complete personal background and health history to provide care tailored to your life stage.

Comprehensive Primary Care: Expert handling of everyday acute illnesses, chronic disease management, preventive health, and lifestyle counseling.

Subspecialty Care Coordination: Serving as a bridge between you and other subspecialists, helping simplify medical jargon, coordinate multi-department visits, and manage complex treatment plans.

Conditions we handle

We welcome you to consult with us for a wide spectrum of health concerns, including:

Common Acute & Chronic Illnesses: Everyday acute conditions (colds, flu, gastroenteritis, fevers) and chronic disease management (hypertension, diabetes, hypercholesterolemia/high lipid levels).

Lifestyle & Behavioral Health: Weight management, smoking cessation, alcohol reduction, and healthier daily habits.

Mental & Emotional Well-Being: Depressed mood, stress management, anxiety, and early emotional support.

Preventive Medicine & Health Maintenance: Wellness consultations, disease prevention, health preservation, and advance care planning/end-of-life guidance.

Family & Maternal-Child Care: Comprehensive care for children, whole-family medical care, and continuous care for mothers and infants before and after pregnancy.

Care Streamlining & Medication Reduction: Assisting patients who see multiple specialists to consolidate care, reduce unnecessary medications (polypharmacy), or guide those unsure of which department to visit first.

Establishing Primary Care: Anyone seeking to establish a dedicated, long-term primary care physician for ongoing health maintenance.

Number of cases

Total Outpatient Consultations: 2,342 patients

(FY2024 Record)

List of Doctors

Director, Family Medicine Department

Tadao OKADA

Subspeciality
Family Medicine， Public Health， Training of doctors
Maternity Care
Chronic Disease
Health Care
Primary Care/Sports Medicine

Department name	Family Medicine
Medical School	Kobe University School of Medicine; Master of Public Health (MPH), University of Pittsburgh Graduate School of Public Health, USA
Special Qualifications	American Board of Family Medicine: Diplomat (2001， 2008) American Academy of Family Physicians: Fellow (2005) Japanese Academy of Primary Care: Diplomat (2002)， Teaching Physician (2003) MPH (multidisciplinary) : University of Pittsburgh， GSPH (2002) ALSO (Advanced Life Support in Obstetrics): Provider (1998)， Instructor (2003) Japanese Academy of Family Medicine: Board member(2003-2008)， : committee of faculty development: advisor (2008-) Clinical Instructor， St.Marianna Medical College (2005-) Visiting Associate Professor， Tokai University School of Medicine (2009-) Clinical Associate Professor， Tokai University School of Medicine (2009-) Honorary General Secretary， Executive Committee， WONCA Asia Pacific Region (2007-2010) Editorial Advisor: Journal of Integrated Medicine (2008)， Resident Note (2008， 2009) Japanese Society of Clinical Sports Medicine
Education & Career	1995.Mar. Graduated Kobe University School of Medicine 1995.Apr. US Naval Hospital Okinawa， rotating intership 1996.May. Resident， Dept of General Medicine， Kyoto University Hospital 1997Jul. Resident， family Practice， UPMC( University of Pittsburgh Medical Center) Shadyside 2000. Fellow， Faculty Development， UPMC family practice consortium 2000. Graduate School of Public Health， University of Pittsburgh 2002.Sep. Interim Chief， Dept of Family Medicine， Kameda Medical Center Director， Kameda Family Medicine Residency Program 2005.Apr. Chief， Dept of family Medicine， Kameda Medical Center Founded HANDS-FD fellowship as a director 2006.Jun. President， Kameda Family Clinic Tateyama Board of Directors， Tessyoukai (Kameda group) 2006. Jun. Clinical Professor of Tokyo Medical and Dental University Cilinical Professor of Chiba University School of Medicine Visiting Professor of St. Marianna University， General Internal Medicine Associate Professor of Tokai University School of Medicine Executive Director of Beijing Medical Association General Practitioner Subcommittee

Director, Home Care Medicine Department; Director, Community Healthcare Support Department; Director, General Consultation Office (Concurrent Appointments)

Kaoru OKAWA

Subspeciality
Home care medicine， Family medicine

Department name	Family Medicine
Medical School	University of Fukui Faculty of Medical Sciences
Special Qualifications	Board-Certified Family Physician, Japan Primary Care Association Certified Instructor, Japan Primary Care Association Board-Certified Specialist in Home Medical Care, Japan Home Care Alliance Certified Instructor in Home Medical Care Chiba Prefecture Regional Disaster Medical Coordinator (Awa Health and Welfare Center Area) Completed Ministry of Health, Labour and Welfare-designated Online Medical Consultation Training Doctor of Medical Science (M.D., Ph.D.)
Education & Career	1998 Mar. Gradated from University of Fukui Faculty of Medical Sciences 1998 Apr. Resident in Yokohama City University Hospital 2000 Apr. Internal Medicine， Ota Hospital 2003 May. Family Medicine， Kameda Medical Center 2006 May. Home Care Medicine， Kameda Medical Center 2007 Apr. Assistant of Home Care Medicine， Kameda Medical Center 2012 Apr. Vice Chief of Home Care Medicine， Kameda Medical Center 2015 Apr. Chief of Home Care Medicine， Kameda Medical Center 2017 Mar. Director, Home Care Medicine Department and Director, Community Healthcare Support Department (concurrent position) 2017 Mar. – Present – Director, Home Care Medicine Department; Director, Community Healthcare Support Department; and Director, General Consultation Office (concurrent positions)

Director, Family Medicine Department

Hideyuki IWAMA

Subspeciality
Family Medicine

Department name	Family Medicine
Medical School	University of the Ryukyus School of Medicine
Special Qualifications	Certified Primary Care Physician, Japan Primary Care Association Board-Certified Family Medicine Specialist, Japan Primary Care Association Certified Instructor, Japan Primary Care Association Board-Certified Internist, Japanese Society of Internal Medicine
Education & Career	March 2007 – Graduated from the University of the Ryukyus School of Medicine April 2007 – Junior Resident, Tomishiro Central Hospital April 2009 – Internal Medicine Physician, Tomishiro Central Hospital October 2010 – Internal Medicine Physician, Okinawa Prefectural Yaeyama Hospital January 2011 – Internal Medicine Physician, Tomishiro Central Hospital April 2011 – Joined Kameda Family Clinic Tateyama as a Senior Resident in Family Medicine April 2014 – Fellow, Family Medicine Department April 2015 – Staff Physician, Family Medicine Department April 2019 – Chief Physician, Family Medicine Department April 2020 – Deputy Director, Family Medicine Department April 2021 – Vice Director, Kameda Family Clinic Tateyama / Director, Family Medicine Department

Chief Physician, Home Care Medicine Department

Masao FUJISHIMA

Subspeciality
Family Medicine
Home Healthcare / Home Medical Care

Department name	Family Medicine
Medical School	Toho University School of Medicine
Education & Career	March 1992 – Graduated from Toho University School of Medicine June 1992 – Third Department of Internal Medicine, Toho University Ohashi Hospital June 1995 – Internal Medicine Physician, Jiseikai Hospital (Social Welfare Corporation Jiseikai) April 1999 – Physician, Atagawa Onsen Hospital (Kenyu-kai Medical Corporation) April 2002 – Joined Kameda Medical Center as a Family Medicine Physician May 2005 – Staff Physician, Family Medicine Department May 2006 – Staff Physician, Home Care Medicine Department April 2012 – Present – Chief Physician, Home Care Medicine Department

Staff Physician, Family Medicine Department

Makiko TSUKAHARA

Department name	Family Medicine
Medical School	Tokai University School of Medicine
Special Qualifications	Completed JMECC (Japanese Medical Emergency Care Course), Japanese Society of Internal Medicine
Education & Career	March 2017 – Graduated from Tokai University School of Medicine April 2017 – Junior Resident, Toho University Omori Medical Center Hospital April 2019 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department April 2022 – Fellow, Family Medicine Department April 2023 – Staff Physician, Family Medicine Department

Staff Physician

Shiori YOSHIBA

Department name	Family Medicine
Medical School	Akita University School of Medicine
Education & Career	March 2019 – Graduated from Akita University School of Medicine April 2019 – Joined Kameda Medical Center as a Junior Resident in the Postgraduate Clinical Training Center April 2021 – General Medicine Resident, Family Medicine Department, Kameda Medical Center April 2024 – Fellow, Family Medicine Department April 2025 – Staff Physician, Family Medicine Department

Shintaro TAKAHASHI

Department name	Family Medicine
Medical School	Hirosaki University School of Medicine
Education & Career	March 2019 – Graduated from Hirosaki University School of Medicine April 2019 – Joined Kameda Medical Center as a Junior Resident in the Postgraduate Clinical Training Center April 2021 – General Medicine Resident, Family Medicine Department, Kameda Medical Center April 2024 – Fellow, Family Medicine Department

General Medicine Resident (Off-Site Training Program)

Akihiro SAITO

Department name	Family Medicine
Medical School	University of the Ryukyus School of Medicine
Education & Career	March 2020 – Graduated from the University of the Ryukyus School of Medicine April 2020 – Joined Kameda Medical Center as a Junior Resident in the Postgraduate Clinical Training Center April 2022 – General Medicine Resident, Family Medicine Department

General Medicine Resident (Specialty Training Program)

Sayaka MITSUISHI

Department name	Family Medicine
Medical School	Nippon Medical School
Education & Career	March 2021 – Graduated from Nippon Medical School April 2021 – Joined Kameda Medical Center as a Junior Resident in the Postgraduate Clinical Training Center April 2023 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Specialty Training Program)

Masafumi YAMADA

Department name	Family Medicine
Medical School	Shimane University School of Medicine
Education & Career	March 2021 – Graduated from Shimane University School of Medicine April 2021 – Joined Kameda Medical Center as a Junior Resident in the Postgraduate Clinical Training Center April 2023 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Off-Site Training Program)

Megumi HISANAGA

Subspeciality
Family Medicine

Department name	Family Medicine
Medical School	Juntendo University School of Medicine
Special Qualifications	Instructor, Neonatal Resuscitation Program (NRP) Advanced Course (A Course), Japan Society of Perinatal and Neonatal Medicine
Education & Career	March 2021 – Graduated from Juntendo University School of Medicine April 2021 – Junior Resident, Juntendo University Nerima Hospital April 2023 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Specialty Training Program)

Yuya ISHIDA

Department name	Family Medicine
Medical School	Institute of Science Tokyo (formerly Tokyo Medical and Dental University)
Education & Career	March 2021 – Graduated from Institute of Science Tokyo (formerly Tokyo Medical and Dental University), School of Medicine April 2023 – Junior Resident, Postgraduate Clinical Training Center, Kameda Medical Center April 2023 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Specialty Training Program)

Iku TAKABATAKE

Department name	Family Medicine
Medical School	Yamagata University School of Medicine
Special Qualifications	ACLS Provider BLS Provider PEARS Provider
Education & Career	March 2021 – Graduated from Yamagata University School of Medicine April 2021 – Junior Resident, Nanto City Hospital April 2023 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Off-Site Training Program)

Toru ISHIDA

Subspeciality
General Medicine

Department name	Family Medicine
Medical School	Keio University School of Medicine
Special Qualifications	BLS Provider Completed Palliative Care Training Program
Education & Career	March 2022 – Graduated from Keio University School of Medicine April 2022 – Junior Resident, Saku General Hospital / Saku Medical Center (JA Nagano Koseiren) April 2024 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Specialty Training Program)

Takehiro ONO

Subspeciality
General Medicine

Department name	Family Medicine
Medical School	Institute of Science Tokyo (formerly Tokyo Medical and Dental University)
Special Qualifications	BLS Provider PALS Provider Completed Neonatal Resuscitation Program (Special Course), Japan Society of Perinatal and Neonatal Medicine Completed Palliative Care Training Program
Education & Career	March 2022 – Graduated from Institute of Science Tokyo (formerly Tokyo Medical and Dental University), School of Medicine April 2022 – Junior Resident, Seirei Hamamatsu General Hospital April 2024 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Specialty Training Program)

Atsushi KANEHARA

Department name	Family Medicine
Medical School	Osaka University School of Medicine
Education & Career	March 2022 – Graduated from Osaka University School of Medicine April 2022 – Junior Resident, Sakai City Medical Center April 2024 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Specialty Training Program)

Aki TAMAI

Department name	Family Medicine
Medical School	Keio University School of Medicine
Education & Career	March 2022 – Graduated from Keio University School of Medicine April 2022 – Junior Resident, Postgraduate Clinical Training Center, Kameda Medical Center April 2024 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Specialty Training Program)

Ryuhei IGETA

Subspeciality
Emergency Medicine

Department name	Family Medicine
Medical School	Dokkyo Medical University School of Medicine
Education & Career	March 2012 – Graduated from Dokkyo Medical University School of Medicine April 2012 – Chiba University Hospital April 2013 – Funabashi Municipal Medical Center April 2014 – Fukui Prefectural Hospital April 2016 – Sugita Genpaku Memorial Obama Hospital April 2017 – St. Marianna University Hospital April 2020 – International University of Health and Welfare Narita Hospital April 2025 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

General Medicine Resident (Specialty Training Program)

Masaki URABE

Department name	Family Medicine
Medical School	International University of Health and Welfare School of Medicine
Education & Career	March 2023 – Graduated from International University of Health and Welfare School of Medicine April 2023 – Junior Resident, Postgraduate Clinical Training Center, Kameda Medical Center April 2025 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Specialty Training Program)

Eriko TAKEUCHI

Department name	Family Medicine
Medical School	Kitasato University School of Medicine
Education & Career	March 2023 – Graduated from Kitasato University School of Medicine April 2023 – Junior Resident, Postgraduate Clinical Training Center, Kameda Medical Center April 2025 – General Medicine Resident, Family Medicine Department, Kameda Medical Center

General Medicine Resident (Specialty Training Program)

Sayaka TODA

Subspeciality
General Medicine, Family Medicine

Department name	Family Medicine
Medical School	Tokyo Women’s Medical University School of Medicine
Special Qualifications	ACLS Provider
Education & Career	March 2022 – Graduated from Tokyo Women’s Medical University School of Medicine April 2022 – Junior Resident, Funabashi Futawa Hospital April 2024 – Joined Kameda Medical Center as a General Medicine Resident in the Family Medicine Department

Specialty Resident (Off-Site Training Program)

Yushi SHIMURA

Department name	Family Medicine
Medical School	University of Toyama School of Medicine
Education & Career	March 2023 – Graduated from University of Toyama School of Medicine April 2024 – Murakami General Hospital (Niigata Prefectural Agricultural Cooperative Federation) April 2026 – Joined Kameda Family Clinic Tateyama (KFCT) as a Family Medicine Specialty Resident