The 20 Best Noonan Syndrome Doctors in Japan

Find the Top Noonan Syndrome Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 292 doctor with experience in Noonan Syndrome near Japan. Of these, 262 are Experienced, 23 are Advanced, 5 are Distinguished and 2 are Elite.

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292 providers found
    Elite in Noonan Syndrome
    Elite in Noonan Syndrome
    Osaka, JP 

    Yoichi Matsubara practices practicing medicine in Osaka, Japan. Mr. Matsubara is rated as an Elite expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Costello Syndrome, RASopathies, Noonan Syndrome, Rommen Mueller Sybert Syndrome, and Trabeculectomy.

    Elite in Noonan Syndrome
    Elite in Noonan Syndrome
    Tokyo, JP 

    Reiko Horikawa practices practicing medicine in Tokyo, Japan. Ms. Horikawa is rated as an Elite expert by MediFind in the treatment of Noonan Syndrome. She is also highly rated in 32 other conditions, according to our data. Her clinical expertise encompasses Pediatric Growth Hormone Deficiency, Small for Gestational Age, Growth Hormone Deficiency (GHD), Hormone Replacement Therapy (HRT), and Liver Transplant.

    Distinguished in Noonan Syndrome
    Distinguished in Noonan Syndrome
    Sendai, JP 

    Tetsuya Niihori practices practicing medicine in Sendai, Japan. Mr. Niihori is rated as a Distinguished expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Costello Syndrome, RASopathies, Linear Nevus Sebaceous Syndrome, and Noonan Syndrome.

    Learn about our expert tiers
    Distinguished in Noonan Syndrome
    Distinguished in Noonan Syndrome
    Sendai, JP 

    Yoko Aoki practices practicing medicine in Sendai, Japan. Ms. Aoki is rated as a Distinguished expert by MediFind in the treatment of Noonan Syndrome. She is also highly rated in 19 other conditions, according to our data. Her clinical expertise encompasses RASopathies, Noonan Syndrome, Costello Syndrome, and Cardiofaciocutaneous Syndrome.

    Distinguished in Noonan Syndrome
    Distinguished in Noonan Syndrome
    Fukushima, JP 

    Susumu Yokoya practices practicing medicine in Fukushima, Japan. Mr. Yokoya is rated as a Distinguished expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Small for Gestational Age, Rommen Mueller Sybert Syndrome, Noonan Syndrome, Short Stature (Growth Disorders), and Hormone Replacement Therapy (HRT).

    Distinguished in Noonan Syndrome
    Distinguished in Noonan Syndrome
    Toranomon, JP 

    Tsuyoshi Isojima practices practicing medicine in Toranomon, Japan. Mr. Isojima is rated as a Distinguished expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Nail-Patella Syndrome, Noonan Syndrome, Turner Syndrome, Caffey Disease, and Hormone Replacement Therapy (HRT).

    Distinguished in Noonan Syndrome
    Distinguished in Noonan Syndrome
    Hamamatsu, JP 

    Tsutomu Ogata practices practicing medicine in Hamamatsu, Japan. Mr. Ogata is rated as a Distinguished expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 69 other conditions, according to our data. His clinical expertise encompasses Russell-Silver Dwarfism, Breast Enlargement In Males, Intersex, Hypospadias, and Hormone Replacement Therapy (HRT).

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Yokohama, JP 

    Yasuhiro Ichikawa practices practicing medicine in Yokohama, Japan. Mr. Ichikawa is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Noonan Syndrome, RASopathies, Pulmonary Valve Stenosis, and Patent Ductus Arteriosus.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Okazaki, JP 

    Hirofumi Ohashi practices practicing medicine in Okazaki, Japan. Ohashi is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. They are also highly rated in 24 other conditions, according to our data. Their clinical expertise encompasses Costello Syndrome, RASopathies, Miller Syndrome, Percutaneous Coronary Intervention (PCI), and Atherectomy.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Osaka, JP 

    Nobuhiko Okamoto practices practicing medicine in Osaka, Japan. Okamoto is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. They are also highly rated in 65 other conditions, according to our data. Their clinical expertise encompasses Bosma Arhinia Microphthalmia Syndrome, Micrognathia, Nicolaides-Baraitser Syndrome, Pancreaticoduodenectomy, and Endoscopy.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Yokohama, JP 

    Kenji Kurosawa practices practicing medicine in Yokohama, Japan. Mr. Kurosawa is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 43 other conditions, according to our data. His clinical expertise encompasses Cerebellar Hypoplasia, Pelizaeus-Merzbacher Disease, Increased Head Circumference, and Hypotonia.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Tokyo, JP 

    Tomonobu Hasegawa practices practicing medicine in Tokyo, Japan. Hasegawa is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. They are also highly rated in 62 other conditions, according to our data. Their clinical expertise encompasses Congenital Hypothyroidism, Panhypopituitarism, Hypothyroidism, Hormone Replacement Therapy (HRT), and Orchiectomy.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Tokyo, JP 

    Keiji Nishijima practices practicing medicine in Tokyo, Japan. Mr. Nishijima is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Rommen Mueller Sybert Syndrome, Noonan Syndrome, RASopathies, and Short Stature (Growth Disorders).

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Kumamoto, JP 

    Shin-ichi Inoue practices practicing medicine in Kumamoto, Japan. Mr. Inoue is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Cardiofaciocutaneous Syndrome, Clouston Syndrome, Aplasia Cutis Congenita, and Ectodermal Dysplasias.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Tokyo, JP 

    Kenjiro Kosaki practices practicing medicine in Tokyo, Japan. Mr. Kosaki is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 76 other conditions, according to our data. His clinical expertise encompasses Feingold Syndrome, Increased Head Circumference, Hypotonia, Oophorectomy, and Salpingo-Oophorectomy.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Saitama, JP 

    Toshiro Nagai practices practicing medicine in Saitama, Japan. Mr. Nagai is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Prader-Willi Syndrome, Noonan Syndrome, RASopathies, Turner Syndrome, and Hormone Replacement Therapy (HRT).

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Tokyo, JP 

    Toshio Nakanishi practices practicing medicine in Tokyo, Japan. Mr. Nakanishi is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Heterotaxy Syndrome, Congenital Heart Disease (CHD), Noonan Syndrome, Cardiac Ablation, and Stent Placement.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Koshigaya, JP 

    Satoru Sakazume practices practicing medicine in Koshigaya, Japan. Mr. Sakazume is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Noonan Syndrome, RASopathies, Simpson-Golabi-Behmel Syndrome, and Turner Syndrome.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Sendai, JP 

    Ryo Funayama practices practicing medicine in Sendai, Japan. Mr. Funayama is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Noonan Syndrome, Classic Galactosemia, Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), and Primary Lateral Sclerosis.

    Advanced in Noonan Syndrome
    Advanced in Noonan Syndrome
    Tokyo, JP 

    Hiroshi Kawame practices practicing medicine in Tokyo, Japan. Mr. Kawame is rated as an Advanced expert by MediFind in the treatment of Noonan Syndrome. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Costello Syndrome, RASopathies, Noonan Syndrome, and Chromosome 6 Uniparental Disomy.

    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 292

    Last Updated: 04/28/2026

    What is the definition of Noonan Syndrome?

    Noonan syndrome is a disease present from birth (congenital) that causes many parts of the body to develop abnormally. In about 50% of cases, it is passed down through families (inherited).

    When should I see a Noonan 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 Noonan 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 does MediFind rank Noonan 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 Noonan 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 Noonan 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 Noonan Syndrome doctor search results page. 

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

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

    Look for the filter feature on the left-side of the Noonan 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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