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    Last Updated: 01/09/2026

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    MediFind found 63 doctor with experience in RASopathies near Saitama, 11. Of these, 56 are Experienced, 6 are Advanced and 1 are Distinguished.

    Location
    LocationClose
    63 providers found
      Distinguished in RASopathies

      Reiko Horikawa
      Distinguished in RASopathies

      Reiko Horikawa
      Tokyo, JP 
       (11.8 km away)

      Reiko Horikawa practices in Tokyo, Japan. Ms. Horikawa is rated as a Distinguished expert by MediFind in the treatment of RASopathies. Her top areas of expertise are Pediatric Growth Hormone Deficiency, Small for Gestational Age, Rommen Mueller Sybert Syndrome, Liver Transplant, and Hormone Replacement Therapy (HRT).

      Experienced in RASopathies

      Nobuhisa Umeki
      Experienced in RASopathies

      Nobuhisa Umeki
      Wako, JP 
       (2.2 km away)

      Nobuhisa Umeki practices in Wako, Japan. Umeki is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Noonan Syndrome and RASopathies.

      Experienced in RASopathies

      Yasushi K. Sako
      Experienced in RASopathies

      Yasushi K. Sako
      Wako, JP 
       (2.2 km away)

      Yasushi Sako practices in Wako, Japan. Sako is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Noonan Syndrome and RASopathies.

      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
      Advanced in RASopathies

      Naomichi Matsumoto
      Advanced in RASopathies

      Naomichi Matsumoto
      Crest, 
      Kawaguchi, JP 
       (11.6 km away)

      Naomichi Matsumoto practices in Kawaguchi, Japan. Matsumoto is rated as an Advanced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are West Syndrome, Coffin-Siris Syndrome, Neuronal Intranuclear Inclusion Disease (NIID), Gastrostomy, and Pancreaticoduodenectomy.

      Advanced in RASopathies

      Kenjiro Kosaki
      Advanced in RASopathies

      Kenjiro Kosaki
      Tokyo, JP 
       (11.8 km away)

      Kenjiro Kosaki practices in Tokyo, Japan. Mr. Kosaki is rated as an Advanced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Feingold Syndrome, Increased Head Circumference, Hypotonia, Oophorectomy, and Salpingo-Oophorectomy.

      Advanced in RASopathies

      Keiji Nishijima
      Advanced in RASopathies

      Keiji Nishijima
      Tokyo, JP 
       (11.8 km away)

      Keiji Nishijima practices in Tokyo, Japan. Mr. Nishijima is rated as an Advanced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Rommen Mueller Sybert Syndrome, Noonan Syndrome, RASopathies, and Short Stature (Growth Disorders).

      Advanced in RASopathies

      Akihiko Yoshimura
      Advanced in RASopathies

      Akihiko Yoshimura
      Tokyo, JP 
       (11.8 km away)

      Akihiko Yoshimura practices in Tokyo, Japan. Yoshimura is rated as an Advanced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Legius Syndrome, Cafe-Au-Lait Spots, RASopathies, Hysterectomy, and Salpingo-Oophorectomy.

      Advanced in RASopathies

      Tomonobu Hasegawa
      Advanced in RASopathies

      Tomonobu Hasegawa
      Tokyo, JP 
       (11.8 km away)

      Tomonobu Hasegawa practices in Tokyo, Japan. Hasegawa is rated as an Advanced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Congenital Hypothyroidism, Panhypopituitarism, Hypothyroidism, Hormone Replacement Therapy (HRT), and Orchiectomy.

      Advanced in RASopathies

      Toshio Nakanishi
      Advanced in RASopathies

      Toshio Nakanishi
      Tokyo, JP 
       (11.8 km away)

      Toshio Nakanishi practices in Tokyo, Japan. Mr. Nakanishi is rated as an Advanced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Congenital Heart Disease (CHD), Heterotaxy Syndrome, Double Discordia, Cardiac Ablation, and Stent Placement.

      Experienced in RASopathies

      Yoshimasa Ando
      Experienced in RASopathies

      Yoshimasa Ando
      Musashino, JP 
       (8.7 km away)

      Yoshimasa Ando practices in Musashino, Japan. Ando is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Sarcoidosis, Retinal Detachment, Noonan Syndrome, RASopathies, and Vitrectomy.

      Experienced in RASopathies

      Masahiro Okada
      Experienced in RASopathies

      Masahiro Okada
      Itabashi, JP 
       (9.8 km away)

      Masahiro Okada practices in Itabashi, Japan. Mr. Okada is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Liver Cancer, Neuroma Biliary Tract, Blue Rubber Bleb Nevus Syndrome, Endoscopy, and Pancreaticoduodenectomy.

      Experienced in RASopathies

      Kazuyoshi Nakanishi
      Experienced in RASopathies

      Kazuyoshi Nakanishi
      Itabashi, JP 
       (9.8 km away)

      Kazuyoshi Nakanishi practices in Itabashi, Japan. Mr. Nakanishi is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Fractured Spine, Tethered Cord Syndrome, Epidural Hematoma, Vertebroplasty, and Laminectomy.

      Experienced in RASopathies

      Kei Takasawa
      Experienced in RASopathies

      Kei Takasawa
      Tokyo, JP 
       (11.8 km away)

      Kei Takasawa practices in Tokyo, Japan. Takasawa is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Congenital Adrenal Hyperplasia (CAH), Intersex, Chromosome 10q Deletion, Hormone Replacement Therapy (HRT), and Bone Marrow Transplant.

      Experienced in RASopathies

      Takao Takahashi
      Experienced in RASopathies

      Takao Takahashi
      Tokyo, JP 
       (11.8 km away)

      Takao Takahashi practices in Tokyo, Japan. Mr. Takahashi is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are 3p Deletion Syndrome, Epicanthal Folds, Neurocutaneous Melanosis, and Flu.

      Experienced in RASopathies

      Takashi Kawakami
      Experienced in RASopathies

      Takashi Kawakami
      Tokyo, JP 
       (11.8 km away)

      Takashi Kawakami practices in Tokyo, Japan. Mr. Kawakami is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Pulmonary Hypertension, Hypertension, Pulmonary Embolism, Angioplasty, and Cardiac Ablation.

      Experienced in RASopathies

      Shotaro Masuoka
      Experienced in RASopathies

      Shotaro Masuoka
      Tokyo, JP 
       (11.8 km away)

      Shotaro Masuoka practices in Tokyo, Japan. Mr. Masuoka is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Type B Insulin Resistance Syndrome, Rheumatoid Arthritis (RA), Noonan Syndrome, and Arthritis.

      Experienced in RASopathies

      Kazuki Yamazawa
      Experienced in RASopathies

      Kazuki Yamazawa
      Tokyo, JP 
       (11.8 km away)

      Kazuki Yamazawa practices in Tokyo, Japan. Mr. Yamazawa is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Russell-Silver Dwarfism, Chromosome 6 Uniparental Disomy, Mosaic Trisomy 7, and Feingold Syndrome.

      Experienced in RASopathies

      Seien Ko
      Experienced in RASopathies

      Seien Ko
      Tokyo, JP 
       (11.8 km away)

      Seien Ko practices in Tokyo, Japan. Ko is rated as an Experienced expert by MediFind in the treatment of RASopathies. Their top areas of expertise are Pulmonary Valve Stenosis, Endocarditis, Noonan Syndrome, RASopathies, and Gastrostomy.

      Experienced in RASopathies

      Shogo Akahoshi
      Experienced in RASopathies

      Shogo Akahoshi
      Tokyo, JP 
       (11.8 km away)

      Shogo Akahoshi practices in Tokyo, Japan. Mr. Akahoshi is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Kawasaki Disease, Cardiofaciocutaneous Syndrome, Coronary Artery Aneurysm, and Vasculitis.

      Experienced in RASopathies

      Daisuke Nakato
      Experienced in RASopathies

      Daisuke Nakato
      Tokyo, JP 
       (11.8 km away)

      Daisuke Nakato practices in Tokyo, Japan. Mr. Nakato is rated as an Experienced expert by MediFind in the treatment of RASopathies. His top areas of expertise are Cafe-Au-Lait Spots, Clubbing of the Fingers or Toes, Legius Syndrome, and Ectodermal Dysplasias.

      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 63

      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 near Saitama, 11?

      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 near Saitama, 11?

      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 near Saitama, 11?

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

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      RASopathies doctor near Atlanta, GA
      RASopathies doctor near Boston, MA
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      RASopathies doctor near San Jose, CA

      How does MediFind rank RASopathies doctors near Saitama, 11?

      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 near Saitama, 11?

      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 near Saitama, 11?

      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 near Saitama, 11?

      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 near Saitama, 11?

      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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