The 20 Best Opioid Induced Constipation Doctors in Japan

Find the Top Opioid Induced Constipation Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 148 doctor with experience in Opioid Induced Constipation near Japan. Of these, 112 are Experienced, 18 are Distinguished, 16 are Advanced and 2 are Elite.

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148 providers found
    Elite in Opioid Induced Constipation

    Hisao Imai
    Elite in Opioid Induced Constipation

    Hisao Imai
    Saitama, JP 

    Hisao Imai practices practicing medicine in Saitama, Japan. Mr. Imai is rated as an Elite expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Opioid Induced Constipation, Osteotomy, and Hepatectomy.

    Elite in Opioid Induced Constipation

    Hiromi Nishiba
    Elite in Opioid Induced Constipation

    Hiromi Nishiba
    Maebashi, JP 

    Hiromi Nishiba practices practicing medicine in Maebashi, Japan. Nishiba is rated as an Elite expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Opioid Induced Constipation and Diarrhea.

    Distinguished in Opioid Induced Constipation

    Soichi Fumita
    Distinguished in Opioid Induced Constipation

    Soichi Fumita
    Nara-shi, JP 

    Soichi Fumita practices practicing medicine in Nara-shi, Japan. Mr. Fumita is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Opioid Induced Constipation, Acute Pain, Gastrointestinal Perforation, Paronychia, and Pancreaticoduodenectomy.

    Learn about our expert tiers
    Distinguished in Opioid Induced Constipation

    Yukiyoshi Fujita
    Distinguished in Opioid Induced Constipation

    Yukiyoshi Fujita
    Ota, JP 

    Yukiyoshi Fujita practices practicing medicine in Ota, Japan. Fujita is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Opioid Induced Constipation, Agranulocytosis, Morning Sickness, and Febrile Neutropenia.

    Distinguished in Opioid Induced Constipation

    Eriko Hiruta
    Distinguished in Opioid Induced Constipation

    Eriko Hiruta
    JP 

    Eriko Hiruta practices practicing medicine in Japan. Ms. Hiruta is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Opioid Induced Constipation.

    Distinguished in Opioid Induced Constipation

    Yasuhide Morioka
    Distinguished in Opioid Induced Constipation

    Yasuhide Morioka
    GRAND GREEN OSAKA South Building Park Tower, 5-54 Ofuka Cho, Kita Ku, 
    Osaka, JP 

    Yasuhide Morioka practices practicing medicine in Osaka, Japan. Morioka is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Opioid Induced Constipation, Acute Pain, Chronic Pain, and Osteoarthritis.

    Distinguished in Opioid Induced Constipation

    Shigeki Yamazaki
    Distinguished in Opioid Induced Constipation

    Shigeki Yamazaki
    Kiryu, JP 

    Shigeki Yamazaki practices practicing medicine in Kiryu, Japan. Mr. Yamazaki is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Opioid Induced Constipation, Langerhans Cell Histiocytosis, Appendix Cancer, and Secondary Peritonitis.

    Distinguished in Opioid Induced Constipation

    Koichi Minato
    Distinguished in Opioid Induced Constipation

    Koichi Minato
    Ota, JP 

    Koichi Minato practices practicing medicine in Ota, Japan. Mr. Minato is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses EGFR Positive Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Lung Cancer, and Small Cell Lung Cancer (SCLC).

    Distinguished in Opioid Induced Constipation

    Takaomi Kessoku
    Distinguished in Opioid Induced Constipation

    Takaomi Kessoku
    Yokohama, JP 

    Takaomi Kessoku practices practicing medicine in Yokohama, Japan. Kessoku is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Non-Alcoholic Fatty Liver Disease, Nonalcoholic Steatohepatitis (NASH), Intestinal Pseudo-Obstruction, Endoscopy, and Gastrostomy.

    Distinguished in Opioid Induced Constipation

    Toshiyuki Harada
    Distinguished in Opioid Induced Constipation

    Toshiyuki Harada
    Sapporo, JP 

    Toshiyuki Harada practices practicing medicine in Sapporo, Japan. Mr. Harada is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), EGFR Positive Lung Cancer, and Opioid Induced Constipation.

    Distinguished in Opioid Induced Constipation

    Akihiro Tokoro
    Distinguished in Opioid Induced Constipation

    Akihiro Tokoro
    Sakai, JP 

    Akihiro Tokoro practices practicing medicine in Sakai, Japan. Mr. Tokoro is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Opioid Induced Constipation, Acute Pain, Delirium, and Acute Interstitial Pneumonia.

    Distinguished in Opioid Induced Constipation

    Kyoko Obayashi
    Distinguished in Opioid Induced Constipation

    Kyoko Obayashi
    Takasaki, JP 

    Kyoko Obayashi practices practicing medicine in Takasaki, Japan. Ms. Obayashi is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Opioid Induced Constipation and Osteosarcoma.

    Distinguished in Opioid Induced Constipation

    Yoshiyuki Kizawa
    Distinguished in Opioid Induced Constipation

    Yoshiyuki Kizawa
    Tsukuba, JP 

    Yoshiyuki Kizawa practices practicing medicine in Tsukuba, Japan. Mr. Kizawa is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Opioid Induced Constipation, Acute Pain, Tenesmus, and Delirium.

    Distinguished in Opioid Induced Constipation

    Yusaku Akashi
    Distinguished in Opioid Induced Constipation

    Yusaku Akashi
    Ikoma, JP 

    Yusaku Akashi practices practicing medicine in Ikoma, Japan. Akashi is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Opioid Induced Constipation, Acute Pain, Severe Acute Respiratory Syndrome (SARS), and Pneumonia.

    Distinguished in Opioid Induced Constipation

    Yuko Kanbayashi
    Distinguished in Opioid Induced Constipation

    Yuko Kanbayashi
    Himeji, JP 

    Yuko Kanbayashi practices practicing medicine in Himeji, Japan. Ms. Kanbayashi is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. She is also highly rated in 6 other conditions, according to our data. Her clinical expertise encompasses Opioid Induced Constipation, Peripheral Neuropathy, Febrile Neutropenia, and Pericarditis.

    Distinguished in Opioid Induced Constipation

    Toshio Noriyuki
    Distinguished in Opioid Induced Constipation

    Toshio Noriyuki
    Onomichi, JP 

    Toshio Noriyuki practices practicing medicine in Onomichi, Japan. Mr. Noriyuki is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Opioid Induced Constipation, Cholecystitis, Gallbladder Disease, Gallbladder Removal, and Pancreaticoduodenectomy.

    Distinguished in Opioid Induced Constipation

    Kyoichi Kaira
    Distinguished in Opioid Induced Constipation

    Kyoichi Kaira
    Saitama, JP 

    Kyoichi Kaira practices practicing medicine in Saitama, Japan. Kaira is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Small Cell Lung Cancer (SCLC), Tissue Biopsy, and Thymectomy.

    Distinguished in Opioid Induced Constipation

    Yuichi Koretaka
    Distinguished in Opioid Induced Constipation

    Yuichi Koretaka
    GRAND GREEN OSAKA South Building Park Tower, 5-54 Ofuka Cho, Kita Ku, 
    Osaka, JP 

    Yuichi Koretaka practices practicing medicine in Osaka, Japan. Koretaka is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Opioid Induced Constipation, Acute Pain, and Chronic Pain.

    Distinguished in Opioid Induced Constipation

    Makio Gamoh
    Distinguished in Opioid Induced Constipation

    Makio Gamoh
    Osaki, JP 

    Makio Gamoh practices practicing medicine in Osaki, Japan. Gamoh is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Opioid Induced Constipation, Colorectal Cancer, Acute Pain, and Stomach Cancer.

    Distinguished in Opioid Induced Constipation

    Shiro Koizuka
    Distinguished in Opioid Induced Constipation

    Shiro Koizuka
    Ota, JP 

    Shiro Koizuka practices practicing medicine in Ota, Japan. Mr. Koizuka is rated as a Distinguished expert by MediFind in the treatment of Opioid Induced Constipation. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Opioid Induced Constipation.

    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 148

    Last Updated: 04/28/2026

    When should I see an Opioid Induced Constipation 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 an Opioid Induced Constipation 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 Opioid Induced Constipation doctor in Japan?

    You can find an Opioid Induced Constipation doctor in any of the 10 largest U.S. cities by clicking below:

    Opioid Induced Constipation doctor near New York, NY
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    How does MediFind rank Opioid Induced Constipation 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 Opioid Induced Constipation 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 an Opioid Induced Constipation 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 Opioid Induced Constipation doctor search results page. 

    Why is it important to get a second opinion from a different Opioid Induced Constipation 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 an Opioid Induced Constipation 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 Opioid Induced Constipation 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 Opioid Induced Constipation 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 Opioid Induced Constipation doctors in Japan?

    Look for the filter feature on the left side of the Opioid Induced Constipation 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 an Opioid Induced Constipation doctor that offers video calls?

    Look for the filter feature on the left-side of the Opioid Induced Constipation 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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