Consultation Hours
9:00 ~ 18:00

» Main phone number
0120-979-097 0120-979-375

For reservation or inquiry, click here

Main phone number
For reservation or inquiry
About Shonan Medical Memorial Hospital

Introduction of Doctors

Dr. Takashi Kato / Chairman, Director of Hospital
Board Certified Surgeon of Japan Surgical Society Ph.D

Takashi Kato, Chairman


Hello. My name is Takashi Kato.

I have been engaged in all kinds of Surgery (thyroid glands, mammary glands, esophageal diseases, gastrointestinal diseases, hepatobiliary and pancreatic diseases, vascular diseases, and endoscopic surgery), emergency, and anesthesia works for about 20 years.

In addition, I also have the experience as the director of a clinic in a rural area.

My specialty is esophageal diseases, but people could call me a "medical generalist".

Therefore, I am confident in skills to address all kinds of diseases.

The reason why I have worked to date as a doctor is that patients became healthy physically and mentally, and shared that joy with me. That is my greatest pleasure.

I am happy to help you with full force so that all of you can send a prosperous life.

Please feel free to consult us anything!


1998 Graduated from Jichi Medical University
Worked at National Sendai Hospital (Current Sendai Medical Center)
2005 Director of Shichikashuku National Health Insurance Clinic
2006 Director of Department of Surgery, and Director of Local Medical Cooperation Office of Public Sasuma Hospital
2007 Department of Organ Transplantation,
Reconstruction and
Endoscopic Surgery (Esophagoscope and Thoracoscope Group) of Tohoku University Hospital
2012 Director of Department of Gastroenterological Surgery of Iwate Prefectural Central Hospital (Laparoscopic Group)
2014 Second Director of Department of Surgery, and Director of Chemotherapy Office of Tome Citizen Hospital
2016 Chairman of Aikeikai Shonan Medical Memorial Hospital
Ph.D., Board Certified Surgeon of Japan Surgical Society, Member of The Japanese Society of Gastroenterological Surgery, Japan Society for Endoscopic Surgery, Japan Surgical Association, The Japanese Society for Regenerative Medicine, and Japanese Society of Anti-Aging Medicine

Internal MedicineGastroenterology
Dr. Shin Haruyama
Physician certified by Japan Gastroenterological Endoscopy SocietyDirector of Department of Gastroenterology


The 1st cause of death is cancer in Japan. Among that, colon cancer, lung cancer, and gastric cancer are the top 3 in both men and women.
There are many gastrointestinal cancers.
If cancer is found at an early stage, the possibility of curing increases. Early detection and early treatment are very important. We recommend to take a regular medical checkup.

I have engaged only in the Department of Gastrointestinal Medicine at general hospitals. I was certified by The Japanese Society of Gastroenterology and Japan Gastroenterological Endoscopy Society. I have performed more than 6,000 cases of Gastroenterology including gastric cameras and colon cameras.
Most gastric cancer is said to be caused by H. pylori. To use health insurance, firstly we need a gastric camera for checking H. pylori.
Colon cancer is said to occur by polyps first. These polyps will be cancerous with growth.Therefore, we recommend to take a colon camera at an early stage to find and treat polyps early in order to decrease the risk of colon cancer.
If you have any concern, such as "I have never taken a checkup", "I would like to take a gastric camera or colon camera, but I am scared...""How is popular transnasal endoscopy?", please contact us first.
We are also waiting for those who having concerns about symptoms of the body.

Internal Medicine, Gastroenterology / Dr. Shin Haruyama


2006 Iwate Prefectural Iwai Hospital
2009 Kohsei Chuo Hospital in 2009
2016 Shonan Medical Memorial Hospital
Physician certified by The Japanese Society of Internal Medicine, The Japanese Society of Gastroenterology, Japan Gastroenterological Endoscopy Society, and interim physician certified by The Japanese Gastroenterological Association


Shonan Medical Memorial Hospital
No. 21-1, 2-chome, Sumida-ku, Tokyo, 130-0026, Japan
Main phone number : 0120-979-097 0120-979-375

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