The 20 Best Diarrhea Doctors in Japan

Find the Top Diarrhea Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 2247 doctor with experience in Diarrhea near Japan. Of these, 2145 are Experienced, 95 are Advanced and 7 are Distinguished.

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2,247 providers found
    Distinguished in Diarrhea

    Shin Fukudo
    Distinguished in Diarrhea

    Shin Fukudo
    Ishinomaki, JP 

    Shin Fukudo practices practicing medicine in Ishinomaki, Japan. Fukudo is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Irritable Bowel Syndrome (IBS), Acute Pain, Chronic Idiopathic Constipation (CIC), Pancreaticoduodenectomy, and Endoscopy.

    Distinguished in Diarrhea

    Yoshito Komatsu
    Distinguished in Diarrhea

    Yoshito Komatsu
    Sapporo, JP 

    Yoshito Komatsu practices practicing medicine in Sapporo, Japan. Mr. Komatsu is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Stomach Cancer, Gastrointestinal Stromal Tumor, Endoscopy, and Tissue Biopsy.

    Distinguished in Diarrhea

    Hiroshi Ushijima
    Distinguished in Diarrhea

    Hiroshi Ushijima
    Tokyo, JP 

    Hiroshi Ushijima practices practicing medicine in Tokyo, Japan. Mr. Ushijima is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Viral Gastroenteritis, Rubella, and Togaviridae Disease.

    Learn about our expert tiers
    Distinguished in Diarrhea

    Satoshi Yuki
    Distinguished in Diarrhea

    Satoshi Yuki
    Sapporo, JP 

    Satoshi Yuki practices practicing medicine in Sapporo, Japan. Mr. Yuki is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Stomach Cancer, Diarrhea, Pancreatic Cancer, and Endoscopy.

    Distinguished in Diarrhea

    Kazuteru Hatanaka
    Distinguished in Diarrhea

    Kazuteru Hatanaka
    Hakodate, JP 

    Kazuteru Hatanaka practices practicing medicine in Hakodate, Japan. Hatanaka is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Colorectal Cancer, Diarrhea, Stomach Cancer, Endoscopy, and Thymectomy.

    Distinguished in Diarrhea

    Hidekazu I. Suzuki
    Distinguished in Diarrhea

    Hidekazu I. Suzuki
    Isehara, JP 

    Hidekazu Suzuki practices practicing medicine in Isehara, Japan. Suzuki is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. They are also highly rated in 29 other conditions, according to our data. Their clinical expertise encompasses Indigestion, Helicobacter Pylori Infection, Gastritis, Endoscopy, and Colonoscopy.

    Distinguished in Diarrhea

    Mayuko Saito
    Distinguished in Diarrhea

    Mayuko Saito
    Sendai, JP 

    Mayuko Saito practices practicing medicine in Sendai, Japan. Ms. Saito is rated as a Distinguished expert by MediFind in the treatment of Diarrhea. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Diarrhea, Viral Gastroenteritis, Parainfluenza, and Severe Acute Respiratory Syndrome (SARS).

    Advanced in Diarrhea

    Hiroji Iwata
    Advanced in Diarrhea

    Hiroji Iwata
    Nagoya, JP 

    Hiroji Iwata practices practicing medicine in Nagoya, Japan. Iwata is rated as an Advanced expert by MediFind in the treatment of Diarrhea. They are also highly rated in 25 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, PIK3CA-Related Overgrowth Spectrum, HER-2 Positive Breast Cancer, Mastectomy, and Hormone Replacement Therapy (HRT).

    Advanced in Diarrhea

    Masakazu Toi
    Advanced in Diarrhea

    Masakazu Toi
    Tokyo, JP 

    Masakazu Toi practices practicing medicine in Tokyo, Japan. Mr. Toi is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, PIK3CA-Related Overgrowth Spectrum, Mastectomy, and Hormone Replacement Therapy (HRT).

    Advanced in Diarrhea

    Yasushi Sakata
    Advanced in Diarrhea

    Yasushi Sakata
    Osaka, JP 

    Yasushi Sakata practices practicing medicine in Osaka, Japan. Sakata is rated as an Advanced expert by MediFind in the treatment of Diarrhea. They are also highly rated in 39 other conditions, according to our data. Their clinical expertise encompasses Heart Failure with Preserved Ejection Fraction (HFpEF), Heart Failure, Atrial Fibrillation, Cardiac Ablation, and Percutaneous Coronary Intervention (PCI).

    Advanced in Diarrhea

    Kenji Tsukano
    Advanced in Diarrhea

    Kenji Tsukano
    Aomori, JP 

    Kenji Tsukano practices practicing medicine in Aomori, Japan. Mr. Tsukano is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Metabolic Acidosis, Low Sodium Level, and Breast Infection.

    Advanced in Diarrhea

    Satoshi Komoto
    Advanced in Diarrhea

    Satoshi Komoto
    Yufu, JP 

    Satoshi Komoto practices practicing medicine in Yufu, Japan. Mr. Komoto is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Viral Gastroenteritis, Neuroma Biliary Tract, Esophageal Cancer, and Pancreaticoduodenectomy.

    Advanced in Diarrhea

    Shoko Okitsu
    Advanced in Diarrhea

    Shoko Okitsu
    Tokyo, JP 

    Shoko Okitsu practices practicing medicine in Tokyo, Japan. Ms. Okitsu is rated as an Advanced expert by MediFind in the treatment of Diarrhea. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Viral Gastroenteritis, Diarrhea, Rubella, and Campylobacter Infection.

    Advanced in Diarrhea

    Shin-ichi Miyoshi
    Advanced in Diarrhea

    Shin-ichi Miyoshi
    Okayama, JP 

    Shin-ichi Miyoshi practices practicing medicine in Okayama, Japan. Mr. Miyoshi is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Cholera, Diarrhea, Shigellosis, and Salmonella Enterocolitis.

    Advanced in Diarrhea

    Miki Tateyama
    Advanced in Diarrhea

    Miki Tateyama
    Tomakomai, JP 

    Miki Tateyama practices practicing medicine in Tomakomai, Japan. Ms. Tateyama is rated as an Advanced expert by MediFind in the treatment of Diarrhea. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Diarrhea, Colorectal Cancer, Agranulocytosis, and Febrile Neutropenia.

    Advanced in Diarrhea

    Ichiro Iwanaga
    Advanced in Diarrhea

    Ichiro Iwanaga
    Sapporo, JP 

    Ichiro Iwanaga practices practicing medicine in Sapporo, Japan. Mr. Iwanaga is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Diarrhea, Stomach Cancer, and Pancreatic Cancer.

    Advanced in Diarrhea

    Masayoshi Dazai
    Advanced in Diarrhea

    Masayoshi Dazai
    Sapporo, JP 

    Masayoshi Dazai practices practicing medicine in Sapporo, Japan. Mr. Dazai is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Stomach Cancer, Colorectal Cancer, and Pancreatic Cancer.

    Advanced in Diarrhea

    Masatoshi Kudo
    Advanced in Diarrhea

    Masatoshi Kudo
    Osaka, JP 

    Masatoshi Kudo practices practicing medicine in Osaka, Japan. Mr. Kudo is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 47 other conditions, according to our data. His clinical expertise encompasses Liver Cancer, Jaundice, Hepatitis, Endoscopy, and Gastrostomy.

    Advanced in Diarrhea

    Hiroshi Kiyono
    Advanced in Diarrhea

    Hiroshi Kiyono
    Chiba, JP 

    Hiroshi Kiyono practices practicing medicine in Chiba, Japan. Mr. Kiyono is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Diarrhea, Cholera, Grass Allergy, and Viral Gastroenteritis.

    Advanced in Diarrhea

    Ken Haruma
    Advanced in Diarrhea

    Ken Haruma
    Kurashiki, JP 

    Ken Haruma practices practicing medicine in Kurashiki, Japan. Mr. Haruma is rated as an Advanced expert by MediFind in the treatment of Diarrhea. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Gastritis, Peptic Ulcer, Indigestion, Endoscopy, and Colonoscopy.

    While we make every effort to provide the best results possible, data is currently limited outside of the United States. Doctors listed may include both clinicians and researchers, and individuals relocate frequently. We recommend contacting doctors directly to confirm their location and areas of focus. Contact information is provided when available. Learn more about our expert tiers.
    Showing 1-20 of 2,247

    Last Updated: 04/28/2026

    What is the definition of Diarrhea?

    Diarrhea is when you pass loose or watery stool.

    When should I see a Diarrhea doctor in Japan?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Diarrhea doctor in Japan?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How do I find the best Diarrhea doctor in Japan?

    You can find a Diarrhea doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank Diarrhea doctors in Japan?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Diarrhea doctors in Japan?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Diarrhea doctor in Japan?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Diarrhea doctor search results page. 

    Why is it important to get a second opinion from a different Diarrhea doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Diarrhea doctor in Japan?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Diarrhea doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Diarrhea doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Diarrhea doctors in Japan?

    Look for the filter feature on the left side of the Diarrhea doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Diarrhea doctor that offers video calls?

    Look for the filter feature on the left-side of the Diarrhea doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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