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    Last Updated: 10/30/2025

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    MediFind found 28 doctor with experience in Homocystinuria due to MTHFR Deficiency near Japan. Of these, 25 are Experienced and 3 are Advanced.

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    28 providers found
      Advanced in Homocystinuria due to MTHFR Deficiency

      Hitoshi Osaka
      Advanced in Homocystinuria due to MTHFR Deficiency

      Hitoshi Osaka
      Tochigi, JP 

      Hitoshi Osaka practices in Tochigi, Japan. Mr. Osaka is rated as an Advanced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are Pelizaeus-Merzbacher Disease, CACH Syndrome, Leigh Syndrome, and West Syndrome.

      Advanced in Homocystinuria due to MTHFR Deficiency

      Takafumi Sakakibara
      Advanced in Homocystinuria due to MTHFR Deficiency

      Takafumi Sakakibara
      Nara-shi, JP 

      Takafumi Sakakibara practices in Nara-shi, Japan. Sakakibara is rated as an Advanced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Homocystinuria due to MTHFR Deficiency, Homocystinuria, Hypomelanosis of Ito, and Epilepsy in Children.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Homocystinuria due to MTHFR Deficiency

      Katsuhiro Kobayashi
      Advanced in Homocystinuria due to MTHFR Deficiency

      Katsuhiro Kobayashi
      Okayama, JP 

      Katsuhiro Kobayashi practices in Okayama, Japan. Kobayashi is rated as an Advanced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are West Syndrome, Epilepsy, Epilepsy in Children, and Spasmus Nutans.

      Learn about our expert tiers
      Experienced in Homocystinuria due to MTHFR Deficiency

      Mari Akiyama
      Experienced in Homocystinuria due to MTHFR Deficiency

      Mari Akiyama
      Okayama, JP 

      Mari Akiyama practices in Okayama, Japan. Ms. Akiyama is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are Epilepsy, Homocystinuria due to MTHFR Deficiency, Myoclonic Epilepsy, and Epilepsy with Myoclonic-Atonic Seizures.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Mitsuru Saito
      Experienced in Homocystinuria due to MTHFR Deficiency

      Mitsuru Saito
      Tokyo, JP 

      Mitsuru Saito practices in Tokyo, Japan. Mr. Saito is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are Osteoporosis, Prostate Cancer, Renal Cell Carcinoma (RCC), Osteotomy, and Kidney Transplant.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Takenobu Kunieda
      Experienced in Homocystinuria due to MTHFR Deficiency

      Takenobu Kunieda
      Hirakata, JP 

      Takenobu Kunieda practices in Hirakata, Japan. Kunieda is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Primary Lateral Sclerosis, Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Tumefactive Multiple Sclerosis, Thrombectomy, and Thymectomy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Hirofumi Kusaka
      Experienced in Homocystinuria due to MTHFR Deficiency

      Hirofumi Kusaka
      Hirakata, JP 

      Hirofumi Kusaka practices in Hirakata, Japan. Kusaka is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Neuronal Intranuclear Inclusion Disease (NIID), Cerebelloolivary Atrophy, Inclusion Body Myositis, Thrombectomy, and Thymectomy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Satoshi Kaneko
      Experienced in Homocystinuria due to MTHFR Deficiency

      Satoshi Kaneko
      Hirakata, JP 

      Satoshi Kaneko practices in Hirakata, Japan. Mr. Kaneko is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are Drug Induced Dyskinesia, Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Thymectomy, and Thalamotomy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Tomohide Goto
      Experienced in Homocystinuria due to MTHFR Deficiency

      Tomohide Goto
      Yokohama, JP 

      Tomohide Goto practices in Yokohama, Japan. Goto is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are West Syndrome, Spasmus Nutans, GABA-Transaminase Deficiency, and Lennox-Gastaut Syndrome (LGS).

      Experienced in Homocystinuria due to MTHFR Deficiency

      Jun Tohyama
      Experienced in Homocystinuria due to MTHFR Deficiency

      Jun Tohyama
      Nishi, JP 

      Jun Tohyama practices in Nishi, Japan. Mr. Tohyama is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are West Syndrome, Epilepsy, Spasmus Nutans, and Myoclonic Epilepsy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Harumi Yoshinaga
      Experienced in Homocystinuria due to MTHFR Deficiency

      Harumi Yoshinaga
      Hayashima, JP 

      Harumi Yoshinaga practices in Hayashima, Japan. Ms. Yoshinaga is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are West Syndrome, Epilepsy in Children, Spasmus Nutans, and Epilepsy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Tomohiko Ishihara
      Experienced in Homocystinuria due to MTHFR Deficiency

      Tomohiko Ishihara
      Clinical Neuroscience Branch, 
      Niigata, JP 

      Tomohiko Ishihara practices in Niigata, Japan. Ishihara is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Primary Lateral Sclerosis, Spinocerebellar Ataxia Type 6, and Muscle Atrophy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Kenjiro Shirane
      Experienced in Homocystinuria due to MTHFR Deficiency

      Kenjiro Shirane
      Osaka, JP 

      Kenjiro Shirane practices in Osaka, Japan. Mr. Shirane is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are Genital Dwarfism, Homocystinuria due to MTHFR Deficiency, and Homocystinuria.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Hiroko Shimbo
      Experienced in Homocystinuria due to MTHFR Deficiency

      Hiroko Shimbo
      Yokohama, JP 

      Hiroko Shimbo practices in Yokohama, Japan. Ms. Shimbo is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are X-Linked Creatine Deficiency, Leigh Syndrome, Chromosome 7p Deletion, and Pelizaeus-Merzbacher Disease.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Shiho Aoki
      Experienced in Homocystinuria due to MTHFR Deficiency

      Shiho Aoki
      Shimotsuke, JP 

      Shiho Aoki practices in Shimotsuke, Japan. Ms. Aoki is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are Leigh Syndrome, Homocystinuria due to MTHFR Deficiency, Pelizaeus-Merzbacher Disease, and Spasticity.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Shinya Asayama
      Experienced in Homocystinuria due to MTHFR Deficiency

      Shinya Asayama
      Hirakata, JP 

      Shinya Asayama practices in Hirakata, Japan. Asayama is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Homocystinuria due to MTHFR Deficiency, Homocystinuria, Progressive Multifocal Leukoencephalopathy, and CACH Syndrome.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Masahiko Tomiyama
      Experienced in Homocystinuria due to MTHFR Deficiency

      Masahiko Tomiyama
      Hirosaki, JP 

      Masahiko Tomiyama practices in Hirosaki, Japan. Tomiyama is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Their top areas of expertise are Drug Induced Dyskinesia, Parkinson's Disease, Movement Disorders, Gastrostomy, and Thymectomy.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Hiroko Tada
      Experienced in Homocystinuria due to MTHFR Deficiency

      Hiroko Tada
      Okayama, JP 

      Hiroko Tada practices in Okayama, Japan. Ms. Tada is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are Homocystinuria due to MTHFR Deficiency, Homocystinuria, and Infantile Neutropenia.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Ichiro Kuki
      Experienced in Homocystinuria due to MTHFR Deficiency

      Ichiro Kuki
      Osaka, JP 

      Ichiro Kuki practices in Osaka, Japan. Mr. Kuki is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. His top areas of expertise are Seizures, West Syndrome, Spasmus Nutans, Generalized Tonic-Clonic Seizure, and Pacemaker Implantation.

      Experienced in Homocystinuria due to MTHFR Deficiency

      Eriko F. Jimbo
      Experienced in Homocystinuria due to MTHFR Deficiency

      Eriko F. Jimbo
      Shimotsuke, JP 

      Eriko Jimbo practices in Shimotsuke, Japan. Ms. Jimbo is rated as an Experienced expert by MediFind in the treatment of Homocystinuria due to MTHFR Deficiency. Her top areas of expertise are Leigh Syndrome, Autism Spectrum Disorder, Niemann-Pick Disease, and Coenzyme Q Cytochrome C Reductase Deficiency.

      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 28

      Last Updated: 10/30/2025

      What is the definition of Homocystinuria due to MTHFR Deficiency?

      Homocystinuria due to MTHFR deficiency is a genetic condition that results from poor metabolism of folate (also called vitamin B9), due to a lack of working enzyme called MTHFR. The gene that tells our body how to make the enzyme is also called MTHFR. At least 40 rare MTHFR gene variants have been found in people with decreased or no working enzyme. Very common gene variants (C677T and A1298C) can cause some decrease in enzyme function. People with Homocystinuria due to MTHFR deficiency tend to have two rare variants or sometimes a rare variant and a common variant. Very rarely people inherit a combination of three or four common variants from their parents (for example two C677T variants and two A1298C variants) and may also develop very high levels of homocystine in their body. Homocystinuria usually does not show symptoms in a newborn baby. Symptoms may include abnormal clotting, developmental delay, seizures, intellectual disability, and microcephaly. Severe homocystinuria can also be caused by gene variants in other genes besides MTHFR.

      When should I see a Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency doctor in Japan?

      You can find a Homocystinuria due to MTHFR Deficiency doctor in any of the 10 largest U.S. cities by clicking below:

      Homocystinuria due to MTHFR Deficiency doctor near New York, NY
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      Homocystinuria due to MTHFR Deficiency doctor near Houston, TX
      Homocystinuria due to MTHFR Deficiency doctor near Phoenix, AZ
      Homocystinuria due to MTHFR Deficiency doctor near Philadelphia, PA
      Homocystinuria due to MTHFR Deficiency doctor near Atlanta, GA
      Homocystinuria due to MTHFR Deficiency doctor near Boston, MA
      Homocystinuria due to MTHFR Deficiency doctor near Dallas, TX
      Homocystinuria due to MTHFR Deficiency doctor near San Jose, CA

      How does MediFind rank Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency doctor search results page. 

      Why is it important to get a second opinion from a different Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency doctors in Japan?

      Look for the filter feature on the left side of the Homocystinuria due to MTHFR Deficiency 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 Homocystinuria due to MTHFR Deficiency doctor that offers video calls?

      Look for the filter feature on the left-side of the Homocystinuria due to MTHFR Deficiency 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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