The 20 Best Collagenous Colitis Doctors in Japan

Find the Top Collagenous Colitis Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 156 doctor with experience in Collagenous Colitis near Japan. Of these, 151 are Experienced and 5 are Advanced.

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156 providers found
    Advanced in Collagenous Colitis

    Kenji Yamazaki
    Advanced in Collagenous Colitis

    Kenji Yamazaki
    Referral may be required
    Sapporo, JP 

    Kenji Yamazaki practices practicing medicine in Sapporo, Japan. Mr. Yamazaki is rated as an Advanced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Collagenous Colitis, Aortic Regurgitation, Pneumomediastinum, Endoscopy, and Pancreaticoduodenectomy.

    Advanced in Collagenous Colitis

    Shuji Terai
    Advanced in Collagenous Colitis

    Shuji Terai
    Referral may be required
    Niigata, JP 

    Shuji Terai practices practicing medicine in Niigata, Japan. Mr. Terai is rated as an Advanced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses Cirrhosis, Liver Cancer, Achalasia, Endoscopy, and Colostomy.

    Advanced in Collagenous Colitis

    Ryoji P. Kushima
    Advanced in Collagenous Colitis

    Ryoji P. Kushima
    Referral may be required
    Otsu, JP 

    Ryoji Kushima practices practicing medicine in Otsu, Japan. Kushima is rated as an Advanced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Stomach Cancer, Gastritis, Sclerosing Mesenteritis, Endoscopy, and Gastrectomy.

    Learn about our expert tiers
    Advanced in Collagenous Colitis

    Masahito Shimizu
    Advanced in Collagenous Colitis

    Masahito Shimizu
    Referral may be required
    Gifu-shi, JP 

    Masahito Shimizu practices practicing medicine in Gifu-shi, Japan. Shimizu is rated as an Advanced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 42 other conditions, according to our data. Their clinical expertise encompasses Muscle Atrophy, Cirrhosis, Liver Cancer, Endoscopy, and Stent Placement.

    Advanced in Collagenous Colitis

    Noritaka Ozawa
    Advanced in Collagenous Colitis

    Noritaka Ozawa
    Referral may be required
    Gifu-shi, JP 

    Noritaka Ozawa practices practicing medicine in Gifu-shi, Japan. Ozawa is rated as an Advanced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Collagenous Colitis, Diarrhea, Viral Gastroenteritis, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis

    Takafumi Suda
    Experienced in Collagenous Colitis

    Takafumi Suda
    Referral may be required
    Hamamatsu, JP 

    Takafumi Suda practices practicing medicine in Hamamatsu, Japan. Suda is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 36 other conditions, according to our data. Their clinical expertise encompasses Acute Interstitial Pneumonia, Interstitial Lung Disease, Pulmonary Fibrosis, Endoscopy, and Tissue Biopsy.

    Experienced in Collagenous Colitis

    Kosuke Minaga
    Experienced in Collagenous Colitis

    Kosuke Minaga
    Referral may be required
    Sakai, JP 

    Kosuke Minaga practices practicing medicine in Sakai, Japan. Minaga is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Bile Duct Obstruction, IgG4-Related Disease, Cholestasis, Stent Placement, and Endoscopy.

    Experienced in Collagenous Colitis

    Naoki Oishi
    Experienced in Collagenous Colitis

    Naoki Oishi
    Referral may be required
    Chuo, JP 

    Naoki Oishi practices practicing medicine in Chuo, Japan. Mr. Oishi is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Hearing Loss, Anaplastic Large Cell Lymphoma, Acoustic Neuroma, Nerve Decompression, and Endoscopy.

    Experienced in Collagenous Colitis

    Ken Kamata
    Experienced in Collagenous Colitis

    Ken Kamata
    Referral may be required
    Sayama, JP 

    Ken Kamata practices practicing medicine in Sayama, Japan. Mr. Kamata is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Pancreatic Cancer, IgG4-Related Disease, Jaundice, Stent Placement, and Endoscopy.

    Experienced in Collagenous Colitis

    Yuga Komaki
    Experienced in Collagenous Colitis

    Yuga Komaki
    Referral may be required
    Kagoshima, JP 

    Yuga Komaki practices practicing medicine in Kagoshima, Japan. Mr. Komaki is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Gastrointestinal Bleeding, Viral Gastroenteritis, Colitis, Colonoscopy, and Endoscopy.

    Experienced in Collagenous Colitis

    Yoshikazu Kinoshita
    Experienced in Collagenous Colitis

    Yoshikazu Kinoshita
    Referral may be required
    Himeji, JP 

    Yoshikazu Kinoshita practices practicing medicine in Himeji, Japan. Mr. Kinoshita is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Peptic Ulcer, Esophagitis, Gastroesophageal Reflux Disease (GERD), Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis

    Masaaki Higashiyama
    Experienced in Collagenous Colitis

    Masaaki Higashiyama
    Referral may be required
    Saitama, JP 

    Masaaki Higashiyama practices practicing medicine in Saitama, Japan. Mr. Higashiyama is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Colitis, Viral Gastroenteritis, Ulcerative Colitis, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis

    Koji Maruta
    Experienced in Collagenous Colitis

    Koji Maruta
    Referral may be required
    Tokorozawa, JP 

    Koji Maruta practices practicing medicine in Tokorozawa, Japan. Mr. Maruta is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. His clinical expertise encompasses Collagenous Colitis, Colitis, Viral Gastroenteritis, and Sepsis.

    Experienced in Collagenous Colitis

    Yuki Kataoka
    Experienced in Collagenous Colitis

    Yuki Kataoka
    Referral may be required
    JP 

    Yuki Kataoka practices practicing medicine in Japan. Kataoka is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 9 other conditions, according to our data. Their clinical expertise encompasses Pleural Effusion, Empyema, Lung Cancer, Endoscopy, and Pancreaticoduodenectomy.

    Experienced in Collagenous Colitis

    Shigeaki Nagao
    Experienced in Collagenous Colitis

    Shigeaki Nagao
    Referral may be required
    Tokorozawa, JP 

    Shigeaki Nagao practices practicing medicine in Tokorozawa, Japan. Nagao is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Colitis, Viral Gastroenteritis, Collagenous Colitis, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis

    Soichiro Miura
    Experienced in Collagenous Colitis

    Soichiro Miura
    Referral may be required
    Kiyose, JP 

    Soichiro Miura practices practicing medicine in Kiyose, Japan. Miura is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Viral Gastroenteritis, Colitis, Helicobacter Pylori Infection, Endoscopy, and Colonoscopy.

    Experienced in Collagenous Colitis

    Kengo Tomita
    Experienced in Collagenous Colitis

    Kengo Tomita
    Referral may be required
    Tokorozawa, JP 

    Kengo Tomita practices practicing medicine in Tokorozawa, Japan. Mr. Tomita is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Cirrhosis, Colitis, Colonoscopy, and Endoscopy.

    Experienced in Collagenous Colitis

    Shunsuke Komoto
    Experienced in Collagenous Colitis

    Shunsuke Komoto
    Referral may be required
    Tokorozawa, JP 

    Shunsuke Komoto practices practicing medicine in Tokorozawa, Japan. Mr. Komoto is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Colitis, Viral Gastroenteritis, Radiation Enteritis, Colonoscopy, and Endoscopy.

    Experienced in Collagenous Colitis

    Ryota Hokari
    Experienced in Collagenous Colitis

    Ryota Hokari
    Referral may be required
    Tokorozawa, JP 

    Ryota Hokari practices practicing medicine in Tokorozawa, Japan. Mr. Hokari is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Colitis, Ulcerative Colitis, Colonoscopy, and Endoscopy.

    Experienced in Collagenous Colitis

    Chikako Watanabe
    Experienced in Collagenous Colitis

    Chikako Watanabe
    Referral may be required
    Shiba, JP 

    Chikako Watanabe practices practicing medicine in Shiba, Japan. Watanabe is rated as an Experienced expert by MediFind in the treatment of Collagenous Colitis. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Viral Gastroenteritis, Colitis, Ulcerative Colitis, 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 156

    Last Updated: 06/30/2026

    What is the definition of Collagenous Colitis?

    Collagenous colitis is a type of inflammatory bowel disease that affects the colon. It is a form of microscopic colitis, which causes chronic diarrhea. In all forms of microscopic colitis, the colon appears normal or almost normal on colonoscopy, but the inflammation is visible when a biopsy of the colon is examined under a microscope (hence its name). People with this disease usually have between four and nine watery bowel movements per day, but in rare cases may have more than fifteen. Various other symptoms relating to the gastrointestinal system or other body symptoms may also be present. The cause of Collagenous colitis is not known but it is thought to be multifactorial. This means that both genetic and environmental factors may interact to cause a person to develop the disease. The extent to which genes play a role is unclear, but familial cases have been described. Certain medications, such as NSAIDS and proton pump inhibitors, have been reported to cause or trigger the disease in some people. However, strong evidence directly linking these medications to the disease is still lacking.

    When should I see a Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis doctor in Japan?

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

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    How does MediFind rank Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis doctor search results page. 

    Why is it important to get a second opinion from a different Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis 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 Collagenous Colitis doctors in Japan?

    Look for the filter feature on the left side of the Collagenous Colitis 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 Collagenous Colitis doctor that offers video calls?

    Look for the filter feature on the left-side of the Collagenous Colitis 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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