The 20 Best Primary Immunodeficiency (PID) Doctors in Japan

Find the Top Primary Immunodeficiency (PID) Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 157 doctor with experience in Primary Immunodeficiency (PID) near Japan. Of these, 134 are Experienced, 16 are Advanced, 6 are Distinguished and 1 are Elite.

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157 providers found
    Elite in Primary Immunodeficiency (PID)

    Hirokazu Kanegane
    Elite in Primary Immunodeficiency (PID)

    Hirokazu Kanegane
    Referral may be required
    Tokyo, JP 

    Hirokazu Kanegane practices practicing medicine in Tokyo, Japan. Kanegane is rated as an Elite expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 32 other conditions, according to our data. Their clinical expertise encompasses X-Linked Lymphoproliferative Disease, Primary Immunodeficiency (PID), IPEX Syndrome, X-Linked Agammaglobulinemia, and Bone Marrow Transplant.

    Distinguished in Primary Immunodeficiency (PID)

    Kohsuke Imai
    Distinguished in Primary Immunodeficiency (PID)

    Kohsuke Imai
    Referral may be required
    Saitama, JP 

    Kohsuke Imai practices practicing medicine in Saitama, Japan. Imai is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 26 other conditions, according to our data. Their clinical expertise encompasses Severe Combined Immunodeficiency (SCID), Primary Immunodeficiency (PID), X-Linked Severe Combined Immunodeficiency, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Distinguished in Primary Immunodeficiency (PID)

    Tomohiro Morio
    Distinguished in Primary Immunodeficiency (PID)

    Tomohiro Morio
    Referral may be required
    Tokyo, JP 

    Tomohiro Morio practices practicing medicine in Tokyo, Japan. Mr. Morio is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Severe Combined Immunodeficiency (SCID), Infantile Neutropenia, X-Linked Severe Combined Immunodeficiency, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Learn about our expert tiers
    Distinguished in Primary Immunodeficiency (PID)

    Hidetoshi Takada
    Distinguished in Primary Immunodeficiency (PID)

    Hidetoshi Takada
    Referral may be required
    Tsukuba, JP 

    Hidetoshi Takada practices practicing medicine in Tsukuba, Japan. Takada is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 22 other conditions, according to our data. Their clinical expertise encompasses Primary Immunodeficiency (PID), Infantile Neutropenia, Wiskott-Aldrich Syndrome, Bone Marrow Transplant, and Colonoscopy.

    Distinguished in Primary Immunodeficiency (PID)

    Masataka Ishimura
    Distinguished in Primary Immunodeficiency (PID)

    Masataka Ishimura
    Referral may be required
    Fukuoka, JP 

    Masataka Ishimura practices practicing medicine in Fukuoka, Japan. Mr. Ishimura is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Protein C Deficiency, Primary Immunodeficiency (PID), Infantile Neutropenia, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Distinguished in Primary Immunodeficiency (PID)

    Shigeaki Nonoyama
    Distinguished in Primary Immunodeficiency (PID)

    Shigeaki Nonoyama
    Referral may be required
    Saitama, JP 

    Shigeaki Nonoyama practices practicing medicine in Saitama, Japan. Nonoyama is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 12 other conditions, according to our data. Their clinical expertise encompasses Immunodeficiency with Hyper IgM Type 1, Primary Immunodeficiency (PID), X-Linked Severe Combined Immunodeficiency, Infantile Neutropenia, and Bone Marrow Transplant.

    Distinguished in Primary Immunodeficiency (PID)

    Motoko Unoki
    Distinguished in Primary Immunodeficiency (PID)

    Motoko Unoki
    Referral may be required
    Tokyo, JP 

    Motoko Unoki practices practicing medicine in Tokyo, Japan. Unoki is rated as a Distinguished expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses ICF Syndrome, Primary Immunodeficiency (PID), Squamous Cell Lung Carcinoma, and Paraplegia.

    Advanced in Primary Immunodeficiency (PID)

    Masatoshi Takagi
    Advanced in Primary Immunodeficiency (PID)

    Masatoshi Takagi
    Referral may be required
    Tokyo, JP 

    Masatoshi Takagi practices practicing medicine in Tokyo, Japan. Mr. Takagi is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Ataxia-Telangiectasia, Acute Lymphoblastic Leukemia (ALL), Leukemia, Bone Marrow Transplant, and Splenectomy.

    Advanced in Primary Immunodeficiency (PID)

    Satoshi Okada
    Advanced in Primary Immunodeficiency (PID)

    Satoshi Okada
    Referral may be required
    Hiroshima, JP 

    Satoshi Okada practices practicing medicine in Hiroshima, Japan. Mr. Okada is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 18 other conditions, according to our data. His clinical expertise encompasses Hyper IgE Syndrome, Autosomal Dominant Hyper IgE Syndrome, Infantile Neutropenia, Bone Marrow Transplant, and Splenectomy.

    Advanced in Primary Immunodeficiency (PID)

    Tsubasa Okano
    Advanced in Primary Immunodeficiency (PID)

    Tsubasa Okano
    Referral may be required
    Tokyo, JP 

    Tsubasa Okano practices practicing medicine in Tokyo, Japan. Mr. Okano is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses X-Linked Severe Combined Immunodeficiency, Primary Immunodeficiency (PID), Activated PI3K Delta Syndrome (APDS), Severe Combined Immunodeficiency (SCID), and Bone Marrow Transplant.

    Advanced in Primary Immunodeficiency (PID)

    Hidenori Ohnishi
    Advanced in Primary Immunodeficiency (PID)

    Hidenori Ohnishi
    Referral may be required
    Gifu-shi, JP 

    Hidenori Ohnishi practices practicing medicine in Gifu-shi, Japan. Ohnishi is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 24 other conditions, according to our data. Their clinical expertise encompasses Baller-Gerold Syndrome, Neonatal Onset Multisystem Inflammatory Disease, Familial Cold Autoinflammatory Syndrome, and Muckle-Wells Syndrome.

    Advanced in Primary Immunodeficiency (PID)

    Tadashi Ariga
    Advanced in Primary Immunodeficiency (PID)

    Tadashi Ariga
    Referral may be required
    Sapporo, JP 

    Tadashi Ariga practices practicing medicine in Sapporo, Japan. Mr. Ariga is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Primary Immunodeficiency (PID), Severe Combined Immunodeficiency (SCID), Adenosine Deaminase Deficiency, Cervical Cancer, and Bone Marrow Transplant.

    Advanced in Primary Immunodeficiency (PID)

    Akihiro Hoshino
    Advanced in Primary Immunodeficiency (PID)

    Akihiro Hoshino
    Referral may be required
    Tokyo, JP 

    Akihiro Hoshino practices practicing medicine in Tokyo, Japan. Mr. Hoshino is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses IPEX Syndrome, X-Linked Lymphoproliferative Disease, ZAP70-Related Severe Combined Immunodeficiency, Lymphadenectomy, and Endoscopy.

    Advanced in Primary Immunodeficiency (PID)

    Osamu Ohara
    Advanced in Primary Immunodeficiency (PID)

    Osamu Ohara
    Referral may be required
    Kisarazu, JP 

    Osamu Ohara practices practicing medicine in Kisarazu, Japan. Mr. Ohara is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 25 other conditions, according to our data. His clinical expertise encompasses Neonatal Onset Multisystem Inflammatory Disease, Muckle-Wells Syndrome, Familial Cold Autoinflammatory Syndrome, Griscelli Syndrome, and Bone Marrow Transplant.

    Advanced in Primary Immunodeficiency (PID)

    Hideki Muramatsu
    Advanced in Primary Immunodeficiency (PID)

    Hideki Muramatsu
    Referral may be required
    Toyohashi, JP 

    Hideki Muramatsu practices practicing medicine in Toyohashi, Japan. Mr. Muramatsu is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Aplastic Anemia, Juvenile Myelomonocytic Leukemia (JMML), Anemia, Dyserythropoietic Anemia and Thrombocytopenia, and Bone Marrow Transplant.

    Advanced in Primary Immunodeficiency (PID)

    Noriko Mitsuiki
    Advanced in Primary Immunodeficiency (PID)

    Noriko Mitsuiki
    Referral may be required
    Tokyo, JP 

    Noriko Mitsuiki practices practicing medicine in Tokyo, Japan. Ms. Mitsuiki is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Primary Immunodeficiency (PID), X-Linked Severe Combined Immunodeficiency, Activated PI3K Delta Syndrome (APDS), Severe Combined Immunodeficiency (SCID), and Bone Marrow Transplant.

    Advanced in Primary Immunodeficiency (PID)

    Tzu-wen Yeh
    Advanced in Primary Immunodeficiency (PID)

    Tzu-wen Yeh
    Referral may be required
    Tokyo, JP 

    Tzu-wen Yeh practices practicing medicine in Tokyo, Japan. Yeh is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Activated PI3K Delta Syndrome (APDS), Primary Immunodeficiency (PID), X-Linked Severe Combined Immunodeficiency, and ICF Syndrome.

    Advanced in Primary Immunodeficiency (PID)

    Hiroyuki Sasaki
    Advanced in Primary Immunodeficiency (PID)

    Hiroyuki Sasaki
    Referral may be required
    Utsunomiya, JP 

    Hiroyuki Sasaki practices practicing medicine in Utsunomiya, Japan. Mr. Sasaki is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses ICF Syndrome, Genital Dwarfism, Primary Immunodeficiency (PID), and Attention Deficit Hyperactivity Disorder (ADHD).

    Advanced in Primary Immunodeficiency (PID)

    Motoi Yamashita
    Advanced in Primary Immunodeficiency (PID)

    Motoi Yamashita
    Referral may be required
    Yokohama, JP 

    Motoi Yamashita practices practicing medicine in Yokohama, Japan. Yamashita is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Leukocyte Adhesion Deficiency Type 1, X-Linked Severe Combined Immunodeficiency, Severe Combined Immunodeficiency (SCID), and Congenital Generalized Fibromatosis.

    Advanced in Primary Immunodeficiency (PID)

    Ryuta Nishikomori
    Advanced in Primary Immunodeficiency (PID)

    Ryuta Nishikomori
    Referral may be required
    Kurume, JP 

    Ryuta Nishikomori practices practicing medicine in Kurume, Japan. Nishikomori is rated as an Advanced expert by MediFind in the treatment of Primary Immunodeficiency (PID). They are also highly rated in 17 other conditions, according to our data. Their clinical expertise encompasses Familial Cold Autoinflammatory Syndrome, Muckle-Wells Syndrome, Neonatal Onset Multisystem Inflammatory Disease, Griscelli Syndrome, and Bone Marrow Aspiration.

    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 157

    Last Updated: 06/30/2026

    When should I see a Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctor in Japan?

    You can find a Primary Immunodeficiency (PID) doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctor search results page. 

    Why is it important to get a second opinion from a different Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctors in Japan?

    Look for the filter feature on the left side of the Primary Immunodeficiency (PID) 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 Primary Immunodeficiency (PID) doctor that offers video calls?

    Look for the filter feature on the left-side of the Primary Immunodeficiency (PID) 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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