The 20 Best IgG4-Related Disease Doctors in Japan

Find the Top IgG4-Related Disease Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 1018 doctor with experience in IgG4-Related Disease near Japan. Of these, 821 are Experienced, 132 are Advanced, 51 are Distinguished and 14 are Elite.

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1,018 providers found
    Elite in IgG4-Related Disease

    Tsutomu T. Takeuchi
    Elite in IgG4-Related Disease

    Tsutomu T. Takeuchi
    Referral may be required
    Tokyo, JP 

    Tsutomu Takeuchi practices practicing medicine in Tokyo, Japan. Mr. Takeuchi is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Rheumatoid Arthritis (RA), Arthritis, Systemic Lupus Erythematosus (SLE), and Shingles.

    Elite in IgG4-Related Disease

    Mitsuhiro Kawano
    Elite in IgG4-Related Disease

    Mitsuhiro Kawano
    Referral may be required
    Kahoku, JP 

    Mitsuhiro Kawano practices practicing medicine in Kahoku, Japan. Kawano is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 22 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Interstitial Nephritis, Retroperitoneal Fibrosis, Castleman Disease, and Kidney Transplant.

    Elite in IgG4-Related Disease

    Mitsuhiro Akiyama
    Elite in IgG4-Related Disease

    Mitsuhiro Akiyama
    Referral may be required
    Shinjuku, JP 

    Mitsuhiro Akiyama practices practicing medicine in Shinjuku, Japan. Akiyama is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 26 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Vasculitis, Castleman Disease, and Lymphoid Hyperplasia.

    Learn about our expert tiers
    Elite in IgG4-Related Disease

    Ichiro Mizushima
    Elite in IgG4-Related Disease

    Ichiro Mizushima
    Referral may be required
    Kanazawa, JP 

    Ichiro Mizushima practices practicing medicine in Kanazawa, Japan. Mr. Mizushima is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, Retroperitoneal Fibrosis, Interstitial Nephritis, and Dacryoadenitis.

    Elite in IgG4-Related Disease

    Motohisa Yamamoto
    Elite in IgG4-Related Disease

    Motohisa Yamamoto
    Referral may be required
    Tokyo, JP 

    Motohisa Yamamoto practices practicing medicine in Tokyo, Japan. Yamamoto is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 9 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Mikulicz Disease, Sialadenitis, and Dacryoadenitis.

    Elite in IgG4-Related Disease

    Kazunori Yamada
    Elite in IgG4-Related Disease

    Kazunori Yamada
    Referral may be required
    Kanazawa, JP 

    Kazunori Yamada practices practicing medicine in Kanazawa, Japan. Yamada is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Interstitial Nephritis, Retroperitoneal Fibrosis, Heart Bypass Surgery, and Aortic Valve Replacement.

    Elite in IgG4-Related Disease

    Hiroki Takahashi
    Elite in IgG4-Related Disease

    Hiroki Takahashi
    Referral may be required
    Kashiwa, JP 

    Hiroki Takahashi practices practicing medicine in Kashiwa, Japan. Mr. Takahashi is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 41 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, Mikulicz Disease, Pulmonary Fibrosis, Colostomy, and Endoscopy.

    Elite in IgG4-Related Disease

    Kazuichi Okazaki
    Elite in IgG4-Related Disease

    Kazuichi Okazaki
    Referral may be required
    Kori, JP 

    Kazuichi Okazaki practices practicing medicine in Kori, Japan. Okazaki is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 17 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Hereditary Pancreatitis, Acute Pancreatitis, Endoscopy, and Pancreaticoduodenectomy.

    Elite in IgG4-Related Disease

    Shoko Matsui
    Elite in IgG4-Related Disease

    Shoko Matsui
    Referral may be required
    Toyama, JP 

    Shoko Matsui practices practicing medicine in Toyama, Japan. Ms. Matsui is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses IgG4-Related Disease, Mikulicz Disease, Lung Cancer, and Non-Small Cell Lung Cancer (NSCLC).

    Elite in IgG4-Related Disease

    Takako Saeki
    Elite in IgG4-Related Disease

    Takako Saeki
    Referral may be required
    Date, JP 

    Takako Saeki practices practicing medicine in Date, Japan. Ms. Saeki is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses IgG4-Related Disease, Interstitial Nephritis, Retroperitoneal Inflammation, and Retroperitoneal Fibrosis.

    Elite in IgG4-Related Disease

    Hisanori Umehara
    Elite in IgG4-Related Disease

    Hisanori Umehara
    Referral may be required
    Nagahama, JP 

    Hisanori Umehara practices practicing medicine in Nagahama, Japan. Umehara is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 9 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Mikulicz Disease, Interstitial Nephritis, and Dry Eye Syndrome.

    Elite in IgG4-Related Disease

    Yuko Kaneko
    Elite in IgG4-Related Disease

    Yuko Kaneko
    Referral may be required
    Shinjuku, JP 

    Yuko Kaneko practices practicing medicine in Shinjuku, Japan. Ms. Kaneko is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. She is also highly rated in 43 other conditions, according to our data. Her clinical expertise encompasses Rheumatoid Arthritis (RA), Arthritis, Adult Still's Disease, and IgG4-Related Disease.

    Elite in IgG4-Related Disease

    Kiyoaki O. Ito
    Elite in IgG4-Related Disease

    Kiyoaki O. Ito
    Referral may be required
    Kanazawa, JP 

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

    Elite in IgG4-Related Disease

    Hiroshi Fujii
    Elite in IgG4-Related Disease

    Hiroshi Fujii
    Referral may be required
    Sendai, JP 

    Hiroshi Fujii practices practicing medicine in Sendai, Japan. Mr. Fujii is rated as an Elite expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, Takayasu Arteritis, Vasculitis, Knee Replacement, and Endoscopy.

    Distinguished in IgG4-Related Disease

    Kosuke Minaga
    Distinguished in IgG4-Related Disease

    Kosuke Minaga
    Referral may be required
    Sakai, JP 

    Kosuke Minaga practices practicing medicine in Sakai, Japan. Minaga is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. 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.

    Distinguished in IgG4-Related Disease

    Ken Kamata
    Distinguished in IgG4-Related Disease

    Ken Kamata
    Referral may be required
    Sayama, JP 

    Ken Kamata practices practicing medicine in Sayama, Japan. Mr. Kamata is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. 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.

    Distinguished in IgG4-Related Disease

    Shigeyuki R. Kawa
    Distinguished in IgG4-Related Disease

    Shigeyuki R. Kawa
    Referral may be required
    Shiojiri, JP 

    Shigeyuki Kawa practices practicing medicine in Shiojiri, Japan. Mr. Kawa is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, Hereditary Pancreatitis, Retroperitoneal Fibrosis, Lithotripsy, and Endoscopy.

    Distinguished in IgG4-Related Disease

    Takashi Maehara
    Distinguished in IgG4-Related Disease

    Takashi Maehara
    Referral may be required
    Fukuoka, JP 

    Takashi Maehara practices practicing medicine in Fukuoka, Japan. Mr. Maehara is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses IgG4-Related Disease, Sialadenitis, Dacryoadenitis, and Mikulicz Disease.

    Distinguished in IgG4-Related Disease

    Hidekata Yasuoka
    Distinguished in IgG4-Related Disease

    Hidekata Yasuoka
    Referral may be required
    Toyoake, JP 

    Hidekata Yasuoka practices practicing medicine in Toyoake, Japan. Yasuoka is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. They are also highly rated in 9 other conditions, according to our data. Their clinical expertise encompasses IgG4-Related Disease, Systemic Sclerosis (SSc), Scleroderma, and Rheumatoid Arthritis (RA).

    Distinguished in IgG4-Related Disease

    Seiji Nakamura
    Distinguished in IgG4-Related Disease

    Seiji Nakamura
    Referral may be required
    Nagasaki, JP 

    Seiji Nakamura practices practicing medicine in Nagasaki, Japan. Mr. Nakamura is rated as a Distinguished expert by MediFind in the treatment of IgG4-Related Disease. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Sialadenitis, IgG4-Related Disease, Mikulicz Disease, and Dacryoadenitis.

    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 1,018

    Last Updated: 06/30/2026

    What is the definition of IgG4-Related Disease?

    IgG4-related disease (IgG4-RD) is an autoimmune disorder in which patients have elevated blood levels of IgG4, the most common form of immunoglobulin that circulates in the blood. Increased levels of IgG4 can cause inflammation in a single organ or in multiple organs, such as the meninges (tissue surrounding brain and spinal cord), the eye sockets, lacrimal (tear duct) glands, salivary glands, thyroid gland, lungs, aorta, kidneys, bladder, pancreas, and bile ducts. IgG4-related disease most often affects middle-aged and elderly males, and rarely, children.

    When should I see an IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease doctor in Japan?

    You can find an IgG4-Related Disease doctor in any of the 10 largest U.S. cities by clicking below:

    IgG4-Related Disease doctor near New York, NY
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    IgG4-Related Disease doctor near Philadelphia, PA
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    IgG4-Related Disease doctor near Dallas, TX
    IgG4-Related Disease doctor near San Jose, CA

    How does MediFind rank IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease doctor search results page. 

    Why is it important to get a second opinion from a different IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease 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 IgG4-Related Disease doctors in Japan?

    Look for the filter feature on the left side of the IgG4-Related Disease 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 IgG4-Related Disease doctor that offers video calls?

    Look for the filter feature on the left-side of the IgG4-Related Disease 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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