The 20 Best Congenital Hyperinsulinism Doctors in Japan

Find the Top Congenital Hyperinsulinism Experts and Specialists

Last Updated: 06/30/2026

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MediFind found 145 doctor with experience in Congenital Hyperinsulinism near Japan. Of these, 127 are Experienced, 17 are Advanced and 1 are Distinguished.

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145 providers found
    Distinguished in Congenital Hyperinsulinism

    Tohru Yorifuji
    Distinguished in Congenital Hyperinsulinism

    Tohru Yorifuji
    Referral may be required
    Date, JP 

    Tohru Yorifuji practices practicing medicine in Date, Japan. Yorifuji is rated as a Distinguished expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 12 other conditions, according to our data. Their clinical expertise encompasses Congenital Hyperinsulinism, Rabson-Mendenhall Syndrome, Transient Neonatal Diabetes Mellitus, Hormone Replacement Therapy (HRT), and Pancreatectomy.

    Advanced in Congenital Hyperinsulinism

    Tatsuhiko Urakami
    Advanced in Congenital Hyperinsulinism

    Tatsuhiko Urakami
    Referral may be required
    Tokyo, JP 

    Tatsuhiko Urakami practices practicing medicine in Tokyo, Japan. Urakami is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Type 1 Diabetes (T1D), Type 2 Diabetes (T2D), Renal Glycosuria, and Low Blood Sugar.

    Advanced in Congenital Hyperinsulinism

    Kei Takasawa
    Advanced in Congenital Hyperinsulinism

    Kei Takasawa
    Referral may be required
    Tokyo, JP 

    Kei Takasawa practices practicing medicine in Tokyo, Japan. Takasawa is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 12 other conditions, according to our data. Their clinical expertise encompasses Congenital Adrenal Hyperplasia (CAH), Intersex, Chromosome 10q Deletion, Bone Marrow Transplant, and Hormone Replacement Therapy (HRT).

    Learn about our expert tiers
    Advanced in Congenital Hyperinsulinism

    Yasuhiro Naiki
    Advanced in Congenital Hyperinsulinism

    Yasuhiro Naiki
    Referral may be required
    Tokyo, JP 

    Yasuhiro Naiki practices practicing medicine in Tokyo, Japan. Mr. Naiki is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Idiopathic Short Stature (ISS), Leri-Weill Dyschondrosteosis, Congenital Hyperinsulinism, and Intersex.

    Advanced in Congenital Hyperinsulinism

    Osamu Arisaka
    Advanced in Congenital Hyperinsulinism

    Osamu Arisaka
    Referral may be required
    Tochigi, JP 

    Osamu Arisaka practices practicing medicine in Tochigi, Japan. Mr. Arisaka is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Chromosome 13q Duplication, Trisomy 13, and Congenital Hyperinsulinism.

    Advanced in Congenital Hyperinsulinism

    Maki Fukami
    Advanced in Congenital Hyperinsulinism

    Maki Fukami
    Referral may be required
    Tokyo, JP 

    Maki Fukami practices practicing medicine in Tokyo, Japan. Fukami is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 68 other conditions, according to our data. Their clinical expertise encompasses Russell-Silver Dwarfism, Intersex, Short Stature (Growth Disorders), and Idiopathic Short Stature (ISS).

    Advanced in Congenital Hyperinsulinism

    Michiya Masue
    Advanced in Congenital Hyperinsulinism

    Michiya Masue
    Referral may be required
    Gifu-shi, JP 

    Michiya Masue practices practicing medicine in Gifu-shi, Japan. Ms. Masue is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses Congenital Hyperinsulinism, Newborn Low Blood Sugar, and Low Blood Sugar.

    Advanced in Congenital Hyperinsulinism

    Kenichi Kashimada
    Advanced in Congenital Hyperinsulinism

    Kenichi Kashimada
    Referral may be required
    Tokyo, JP 

    Kenichi Kashimada practices practicing medicine in Tokyo, Japan. Mr. Kashimada is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 13 other conditions, according to our data. His clinical expertise encompasses Intersex, Congenital Adrenal Hyperplasia (CAH), Congenital Lipoid Adrenal Hyperplasia, Hormone Replacement Therapy (HRT), and Bone Marrow Transplant.

    Advanced in Congenital Hyperinsulinism

    Tsutomu Ogata
    Advanced in Congenital Hyperinsulinism

    Tsutomu Ogata
    Referral may be required
    Hamamatsu, JP 

    Tsutomu Ogata practices practicing medicine in Hamamatsu, Japan. Mr. Ogata is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 69 other conditions, according to our data. His clinical expertise encompasses Russell-Silver Dwarfism, Breast Enlargement In Males, Idiopathic Short Stature (ISS), Intersex, and Hormone Replacement Therapy (HRT).

    Advanced in Congenital Hyperinsulinism

    Go Ichikawa
    Advanced in Congenital Hyperinsulinism

    Go Ichikawa
    Referral may be required
    Inzai, JP 

    Go Ichikawa practices practicing medicine in Inzai, Japan. Mr. Ichikawa is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Obesity in Children, Congenital Hyperinsulinism, Kikuchi Disease, and Cytochrome P450 Oxidoreductase Deficiency.

    Advanced in Congenital Hyperinsulinism

    Tomohiro Morio
    Advanced in Congenital Hyperinsulinism

    Tomohiro Morio
    Referral may be required
    Tokyo, JP 

    Tomohiro Morio practices practicing medicine in Tokyo, Japan. Mr. Morio is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. 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.

    Advanced in Congenital Hyperinsulinism

    Junji Takaya
    Advanced in Congenital Hyperinsulinism

    Junji Takaya
    Referral may be required
    Osaka, JP 

    Junji Takaya practices practicing medicine in Osaka, Japan. Takaya is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Familial Glucocorticoid Deficiency, Congenital Hyperinsulinism, Obesity, and Small for Gestational Age.

    Advanced in Congenital Hyperinsulinism

    Junichi Suzuki
    Advanced in Congenital Hyperinsulinism

    Junichi Suzuki
    Referral may be required
    Itabashi, JP 

    Junichi Suzuki practices practicing medicine in Itabashi, Japan. Mr. Suzuki is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Renal Glycosuria, Type 1 Diabetes (T1D), Type 2 Diabetes (T2D), and Congenital Hyperinsulinism.

    Advanced in Congenital Hyperinsulinism

    Yuriko Abe
    Advanced in Congenital Hyperinsulinism

    Yuriko Abe
    Referral may be required
    Tokyo, JP 

    Yuriko Abe practices practicing medicine in Tokyo, Japan. Ms. Abe is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Congenital Hyperinsulinism, Kawasaki Disease, Pulmonary Vein Stenosis, and Pulmonary Atresia.

    Advanced in Congenital Hyperinsulinism

    Emiko Saito
    Advanced in Congenital Hyperinsulinism

    Emiko Saito
    Referral may be required
    Tokyo, JP 

    Emiko Saito practices practicing medicine in Tokyo, Japan. Ms. Saito is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Congenital Hyperinsulinism, Thoracic Outlet Syndrome, Metabolic Syndrome, and Obesity.

    Advanced in Congenital Hyperinsulinism

    Keisuke Yoshii
    Advanced in Congenital Hyperinsulinism

    Keisuke Yoshii
    Referral may be required
    Nishigawara, JP 

    Keisuke Yoshii practices practicing medicine in Nishigawara, Japan. Mr. Yoshii is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Congenital Hyperinsulinism, Partial Androgen Insensitivity Syndrome (PAIS), Ornithine Transcarbamylase Deficiency, and Congenital Cardiovascular Shunt.

    Advanced in Congenital Hyperinsulinism

    Hironari Sano
    Advanced in Congenital Hyperinsulinism

    Hironari Sano
    Referral may be required
    Niigata, JP 

    Hironari Sano practices practicing medicine in Niigata, Japan. Sano is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Congenital Hyperinsulinism and Obesity.

    Advanced in Congenital Hyperinsulinism

    Toshimi Sairenchi
    Advanced in Congenital Hyperinsulinism

    Toshimi Sairenchi
    Referral may be required
    Ibaraki Health Plaza, 
    Mito, JP 

    Toshimi Sairenchi practices practicing medicine in Mito, Japan. Sairenchi is rated as an Advanced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Obesity in Children, Congenital Hyperinsulinism, Restless Legs Syndrome, Obesity, and Aortic Valve Replacement.

    Experienced in Congenital Hyperinsulinism

    Toshihiko Masui
    Experienced in Congenital Hyperinsulinism

    Toshihiko Masui
    Referral may be required
    Kurashiki, JP 

    Toshihiko Masui practices practicing medicine in Kurashiki, Japan. Masui is rated as an Experienced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Pancreatic Cancer, Pancreatic Islet Cell Tumor, Insulinoma, Pancreaticoduodenectomy, and Pancreatectomy.

    Experienced in Congenital Hyperinsulinism

    Yukihiro Hasegawa
    Experienced in Congenital Hyperinsulinism

    Yukihiro Hasegawa
    Referral may be required
    Tama, JP 

    Yukihiro Hasegawa practices practicing medicine in Tama, Japan. Hasegawa is rated as an Experienced expert by MediFind in the treatment of Congenital Hyperinsulinism. They are also highly rated in 24 other conditions, according to our data. Their clinical expertise encompasses Turner Syndrome, Intersex, Hypothyroidism, Mixed Gonadal Dysgenesis, and Hormone Replacement Therapy (HRT).

    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 145

    Last Updated: 06/30/2026

    What is the definition of Congenital Hyperinsulinism?

    Congenital hyperinsulinism is a condition that causes individuals to have abnormally high levels of insulin. Insulin is a hormone that helps control levels of blood glucose, also called blood sugar. People with this condition have frequent episodes of low blood glucose (hypoglycemia). In infants and young children, these episodes are characterized by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.

    When should I see a Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism doctor in Japan?

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

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    How does MediFind rank Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism doctor search results page. 

    Why is it important to get a second opinion from a different Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism 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 Congenital Hyperinsulinism doctors in Japan?

    Look for the filter feature on the left side of the Congenital Hyperinsulinism 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 Congenital Hyperinsulinism doctor that offers video calls?

    Look for the filter feature on the left-side of the Congenital Hyperinsulinism 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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