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    Last Updated: 01/09/2026

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    MediFind found 20 doctor with experience in RASopathies near Hokkaido, JP. Of these, 20 are Experienced.

    Location
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    20 providers found
      Experienced in RASopathies

      Tokimasa Hida
      Experienced in RASopathies

      Tokimasa Hida
      Sapporo, JP 

      Tokimasa Hida practices in Sapporo, Japan. Hida is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Cafe-Au-Lait Spots, Sebaceous Adenoma, Melanoma, and Extramammary Paget Disease.

      Experienced in RASopathies

      Sayuri Sato
      Experienced in RASopathies

      Sayuri Sato
      Sapporo, JP 

      Sayuri Sato practices in Sapporo, Japan. Ms. Sato is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Extramammary Paget Disease, Melanoma, Cardiofaciocutaneous Syndrome, and Ectodermal Dysplasias.

      Experienced in RASopathies

      Masae Okura
      Experienced in RASopathies

      Masae Okura
      Sapporo, JP 

      Masae Okura practices in Sapporo, Japan. Ms. Okura is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Cafe-Au-Lait Spots, Cardiofaciocutaneous Syndrome, Diffuse Panbronchiolitis, and Linear Nevus Sebaceous Syndrome.

      Are you looking for a specific type of RASopathies?

      Common conditions include: Cardiofaciocutaneous Syndrome, Cardiomyopathic Lentiginosis, Costello Syndrome, Legius Syndrome, Noonan Syndrome

      Learn about our expert tiers
      Experienced in RASopathies

      Naoya Kinota
      Experienced in RASopathies

      Naoya Kinota
      Sapporo, JP 

      Naoya Kinota practices in Sapporo, Japan. Mr. Kinota is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Cardiofaciocutaneous Syndrome, Pleurisy, RASopathies, Liver Embolization, and Stent Placement.

      Experienced in RASopathies

      Mitsumaro Nii
      Experienced in RASopathies

      Mitsumaro Nii
      Asahikawa, JP 

      Mitsumaro Nii practices in Asahikawa, Japan. Nii is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Coronary Artery Fistula, Costello Syndrome, RASopathies, and Coarctation of the Aorta.

      Experienced in RASopathies

      Takayuki Okamoto
      Experienced in RASopathies

      Takayuki Okamoto
      Sapporo, JP 

      Takayuki Okamoto practices in Sapporo, Japan. Mr. Okamoto is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Nephrotic Syndrome, Poststreptococcal Glomerulonephritis, Alport Syndrome, Kidney Transplant, and Nephrectomy.

      Experienced in RASopathies

      Fumikatsu Nohara
      Experienced in RASopathies

      Fumikatsu Nohara
      Asahikawa, JP 

      Fumikatsu Nohara practices in Asahikawa, Japan. Nohara is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Meningocele, Dandy-Walker Syndrome, Costello Syndrome, and Tracheobronchomalacia.

      Experienced in RASopathies

      Yayoi Ogawa
      Experienced in RASopathies

      Yayoi Ogawa
      Sapporo, JP 

      Yayoi Ogawa practices in Sapporo, Japan. Ms. Ogawa is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Light Chain Deposition Disease (LCDD), Glomerulonephritis, Necrotizing Vasculitis, and Goodpasture Syndrome.

      Experienced in RASopathies

      Toshio Okamoto
      Experienced in RASopathies

      Toshio Okamoto
      Asahikawa, JP 

      Toshio Okamoto practices in Asahikawa, Japan. Mr. Okamoto is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Leukemoid Reaction, Down Syndrome, Trisomy 18, and Costello Syndrome.

      Experienced in RASopathies

      Makiko Shibuya
      Experienced in RASopathies

      Makiko Shibuya
      Sapporo, JP 

      Makiko Shibuya practices in Sapporo, Japan. Ms. Shibuya is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Cohen Syndrome, Methemoglobinemia, Citrullinemia, and Low Blood Pressure.

      Experienced in RASopathies

      Takashi Hojo
      Experienced in RASopathies

      Takashi Hojo
      Sapporo, JP 

      Takashi Hojo practices in Sapporo, Japan. Hojo is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Methemoglobinemia, Low Blood Pressure, Breast Cancer, Intraductal Papilloma, and Mastectomy.

      Experienced in RASopathies

      Hayato Aoyagi
      Experienced in RASopathies

      Hayato Aoyagi
      Obihiro, JP 

      Hayato Aoyagi practices in Obihiro, Japan. Mr. Aoyagi is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Atypical Pneumonia, Mycoplasma Pneumonia, Nutcracker Syndrome (NCS), and Nephrotic Syndrome.

      Experienced in RASopathies

      Aki Ishikawa
      Experienced in RASopathies

      Aki Ishikawa
      Sapporo, JP 

      Aki Ishikawa practices in Sapporo, Japan. Ishikawa is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Fetal Parvovirus Syndrome, Proximal Symphalangism, Multiple Synostoses Syndrome 1, and Metachondromatosis.

      Experienced in RASopathies

      Toshiaki Fujisawa
      Experienced in RASopathies

      Toshiaki Fujisawa
      Sapporo, JP 

      Toshiaki Fujisawa practices in Sapporo, Japan. Mr. Fujisawa is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Methemoglobinemia, Cohen Syndrome, Low Blood Pressure, Hypotonia, and Osteotomy.

      Experienced in RASopathies

      Toyoyuki Ose
      Experienced in RASopathies

      Toyoyuki Ose
      Sapporo, JP 

      Toyoyuki Ose practices in Sapporo, Japan. Ose is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Measles, Rabies, Legius Syndrome, and Cafe-Au-Lait Spots.

      Experienced in RASopathies

      Ken Nagaya
      Experienced in RASopathies

      Ken Nagaya
      Asahikawa, JP 

      Ken Nagaya practices in Asahikawa, Japan. Mr. Nagaya is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Meningocele, Leukemoid Reaction, Chromosome 13q Duplication, and Trisomy 13.

      Experienced in RASopathies

      Hisashi Uhara
      Experienced in RASopathies

      Hisashi Uhara
      Sapporo, JP 

      Hisashi Uhara practices in Sapporo, Japan. Mr. Uhara is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Melanoma, Extramammary Paget Disease, Basal Cell Skin Cancer, Cafe-Au-Lait Spots, and Nephrectomy.

      Experienced in RASopathies

      Ayako Yokoyama
      Experienced in RASopathies

      Ayako Yokoyama
      Sapporo, JP 

      Ayako Yokoyama practices in Sapporo, Japan. Ms. Yokoyama is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Noonan Syndrome, RASopathies, and Osteolysis Syndrome Recessive.

      Experienced in RASopathies

      Hiroko Asai
      Experienced in RASopathies

      Hiroko Asai
      Asahikawa, JP 

      Hiroko Asai practices in Asahikawa, Japan. Ms. Asai is rated as an Experienced expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Tracheobronchomalacia, Costello Syndrome, RASopathies, and Coarctation of the Aorta.

      Experienced in RASopathies

      Yukifumi Kimura
      Experienced in RASopathies

      Yukifumi Kimura
      Sapporo, JP 

      Yukifumi Kimura practices in Sapporo, Japan. Kimura is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Methemoglobinemia, Cohen Syndrome, Low Blood Pressure, and Post Polio 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 20

      Last Updated: 01/09/2026

      What is the definition of RASopathies?

      RASopathies are a group of rare syndromes causes by mutations in the genes that make proteins for the Ras/MAPK cell signaling pathway. This pathway controls cell functions such as cell growth, cell maturation, and cell death. There are several types of RASopathy syndromes, including cardiofaciocutaneous syndrome, Costello syndrome, Legius syndrome, neurofibromatosis type 1, Noonan syndrome, and capillary malformation-arteriovenous malformation syndrome.

      When should I see a RASopathies doctor in Hokkaido, JP?

      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 RASopathies doctor in Hokkaido, JP?

      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 RASopathies doctor in Hokkaido, JP?

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

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      How does MediFind rank RASopathies doctors in Hokkaido, JP?

      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 RASopathies doctors in Hokkaido, JP?

      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 RASopathies doctor in Hokkaido, JP?

      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 RASopathies doctor search results page. 

      Why is it important to get a second opinion from a different RASopathies 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 RASopathies doctor in Hokkaido, JP?

      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 RASopathies 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 RASopathies 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 RASopathies doctors in Hokkaido, JP?

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

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