The 20 Best L1 Syndrome Doctors in Japan

Find the Top L1 Syndrome Experts and Specialists

Last Updated: 11/08/2026

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MediFind found 106 doctor with experience in L1 Syndrome near Japan. Of these, 86 are Experienced and 20 are Advanced.

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106 providers found
    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Yokohama, JP 

    Hiroaki Goto practices practicing medicine in Yokohama, Japan. Mr. Goto is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Leukemoid Reaction, Bone Marrow Transplant, and Bone Graft.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Kagoshima, JP 

    Yasuhiro Okamoto practices practicing medicine in Kagoshima, Japan. Mr. Okamoto is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, L1 Syndrome, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Kyoto, JP 

    Junko Takita practices practicing medicine in Kyoto, Japan. Ms. Takita is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. She is also highly rated in 26 other conditions, according to our data. Her clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Osteopenia, Bone Marrow Transplant, and Gallbladder Removal.

    Learn about our expert tiers
    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tokyo, JP 

    Nobutaka Kiyokawa practices practicing medicine in Tokyo, Japan. Kiyokawa is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Childhood Acute Myeloid Leukemia, Tissue Biopsy, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Sendai, JP 

    Atsushi Sato practices practicing medicine in Sendai, Japan. Mr. Sato is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Acquired Amegakaryocytic Thrombocytopenia, L1 Syndrome, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tokyo, JP 

    Hirotoshi Sakaguchi practices practicing medicine in Tokyo, Japan. Sakaguchi is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 11 other conditions, according to our data. Their clinical expertise encompasses Juvenile Myelomonocytic Leukemia (JMML), Aplastic Anemia, Leukemia, Bone Marrow Transplant, and Bone Graft.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Isesaki, JP 

    Yasuhide Hayashi practices practicing medicine in Isesaki, Japan. Hayashi is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 10 other conditions, according to our data. Their clinical expertise encompasses Childhood Acute Myeloid Leukemia, Leukemoid Reaction, Acute Myeloid Leukemia (AML), and Leukemia.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Mito, JP 

    Keisuke Kato practices practicing medicine in Mito, Japan. Mr. Kato is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Pleuropulmonary Blastoma, Acute Lymphoblastic Leukemia (ALL), L1 Syndrome, Leukemia, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Yokohama, JP 

    Tomoko Yokosuka practices practicing medicine in Yokohama, Japan. Ms. Yokosuka is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Leukemoid Reaction, L1 Syndrome, Down Syndrome, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Hirosaki, JP 

    Tsutomu Toki practices practicing medicine in Hirosaki, Japan. Mr. Toki is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Pure Red Cell Aplasia, Aase Syndrome, Down Syndrome, Acute Megakaryoblastic Leukemia, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tokyo, JP 

    Michiko Kajiwara practices practicing medicine in Tokyo, Japan. Ms. Kajiwara is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses L1 Syndrome, Immunodeficiency with Hyper IgM Type 1, Graft Versus Host Disease (GvHD), Severe Combined Immunodeficiency (SCID), and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Sapporo, JP 

    Atsushi Manabe practices practicing medicine in Sapporo, Japan. Mr. Manabe is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 15 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Juvenile Myelomonocytic Leukemia (JMML), Leukemia, Infantile Neutropenia, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Hirosaki, JP 

    Etsuro Ito practices practicing medicine in Hirosaki, Japan. Ito is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Aase Syndrome, Pure Red Cell Aplasia, Aplastic Anemia, Down Syndrome, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Hirosaki, JP 

    Kiminori Terui practices practicing medicine in Hirosaki, Japan. Terui is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 15 other conditions, according to our data. Their clinical expertise encompasses Leukemoid Reaction, Down Syndrome, Aase Syndrome, Pure Red Cell Aplasia, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Sapporo, JP 

    Shinsuke Hirabayashi practices practicing medicine in Sapporo, Japan. Hirabayashi is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 12 other conditions, according to our data. Their clinical expertise encompasses Chromosome 7p Deletion, Acute Lymphoblastic Leukemia (ALL), Juvenile Myelomonocytic Leukemia (JMML), Leukemia, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tokyo, JP 

    Daisuke Tomizawa practices practicing medicine in Tokyo, Japan. Mr. Tomizawa is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Childhood Acute Myeloid Leukemia, Acute Myeloid Leukemia (AML), Leukemia, Bone Marrow Transplant, and Bone Marrow Aspiration.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Okayama, JP 

    Hisashi Ishida practices practicing medicine in Okayama, Japan. Mr. Ishida is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Acute Lymphoblastic Leukemia (ALL), Leukemia, Childhood Acute Myeloid Leukemia, Trabeculectomy, and Bone Marrow Transplant.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tokushima, JP 

    Tatsuo Mori practices practicing medicine in Tokushima, Japan. Mr. Mori is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses West Syndrome, Epilepsy in Children, L1 Syndrome, and Spasmus Nutans.

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Tsu, JP 

    Atsushi Kohso practices practicing medicine in Tsu, Japan. Mr. Kohso is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses L1 Syndrome, Leukemoid Reaction, Down Syndrome, and Acute Lymphoblastic Leukemia (ALL).

    Advanced in L1 Syndrome
    Advanced in L1 Syndrome
    Referral may be required
    Chiba, JP 

    Yohko Nakamura practices practicing medicine in Chiba, Japan. Nakamura is rated as an Advanced expert by MediFind in the treatment of L1 Syndrome. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Neuroblastoma, Embryonal Tumor with Multilayered Rosettes, Gliomatosis Cerebri, and L1 Syndrome.

    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 106

    Last Updated: 11/08/2026

    What is the definition of L1 Syndrome?

    L1 syndrome describes a group of conditions that primarily affect the nervous system and occur almost exclusively in males. These conditions vary in severity and include, from most severe to least, X-linked hydrocephalus with stenosis of the aqueduct of Sylvius (HSAS), MASA syndrome, spastic paraplegia type 1, and X-linked complicated corpus callosum agenesis.

    When should I see a L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome doctor in Japan?

    You can find a L1 Syndrome doctor in any of the 10 largest U.S. cities by clicking below:

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    How does MediFind rank L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome doctor search results page. 

    Why is it important to get a second opinion from a different L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome 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 L1 Syndrome doctors in Japan?

    Look for the filter feature on the left side of the L1 Syndrome 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 L1 Syndrome doctor that offers video calls?

    Look for the filter feature on the left-side of the L1 Syndrome 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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