The 20 Best Insomnia Doctors in Japan

Find the Top Insomnia Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 338 doctor with experience in Insomnia near Japan. Of these, 311 are Experienced, 21 are Advanced and 6 are Distinguished.

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338 providers found
    Distinguished in Insomnia

    Isa Okajima
    Distinguished in Insomnia

    Isa Okajima
    Tokyo, JP 

    Isa Okajima practices practicing medicine in Tokyo, Japan. Okajima is rated as a Distinguished expert by MediFind in the treatment of Insomnia. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Insomnia, ADULT Syndrome, Premenstrual Dysphoric Disorder, and Premenstrual Syndrome.

    Distinguished in Insomnia

    Yuichi Inoue
    Distinguished in Insomnia

    Yuichi Inoue
    Tokyo, JP 

    Yuichi Inoue practices practicing medicine in Tokyo, Japan. Inoue is rated as a Distinguished expert by MediFind in the treatment of Insomnia. They are also highly rated in 13 other conditions, according to our data. Their clinical expertise encompasses Restless Legs Syndrome, Excessive Daytime Sleepiness, Drowsiness, and Insomnia.

    Distinguished in Insomnia

    Naohisa Uchimura
    Distinguished in Insomnia

    Naohisa Uchimura
    Kurume, JP 

    Naohisa Uchimura practices practicing medicine in Kurume, Japan. Uchimura is rated as a Distinguished expert by MediFind in the treatment of Insomnia. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Insomnia, Excessive Daytime Sleepiness, Restless Legs Syndrome, and Drowsiness.

    Learn about our expert tiers
    Distinguished in Insomnia

    Kazuo Mishima
    Distinguished in Insomnia

    Kazuo Mishima
    Akita, JP 

    Kazuo Mishima practices practicing medicine in Akita, Japan. Mr. Mishima is rated as a Distinguished expert by MediFind in the treatment of Insomnia. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Excessive Daytime Sleepiness, Idiopathic Hypersomnia, Drowsiness, and Insomnia.

    Distinguished in Insomnia

    Hiroshi Kadotani
    Distinguished in Insomnia

    Hiroshi Kadotani
    Otsu, JP 

    Hiroshi Kadotani practices practicing medicine in Otsu, Japan. Mr. Kadotani is rated as a Distinguished expert by MediFind in the treatment of Insomnia. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Insomnia, Obstructive Sleep Apnea, Irregular Sleep-Wake Syndrome, and Metabolic Syndrome.

    Distinguished in Insomnia

    Yoshikazu Takaesu
    Distinguished in Insomnia

    Yoshikazu Takaesu
    Okinawa, JP 

    Yoshikazu Takaesu practices practicing medicine in Okinawa, Japan. Mr. Takaesu is rated as a Distinguished expert by MediFind in the treatment of Insomnia. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Insomnia, Major Depression, Bipolar Disorder (BPD), and Schizophrenia.

    Advanced in Insomnia

    Yuta Takano
    Advanced in Insomnia

    Yuta Takano
    Tokyo, JP 

    Yuta Takano practices practicing medicine in Tokyo, Japan. Mr. Takano is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia, Excessive Daytime Sleepiness, Restless Legs Syndrome, and Drowsiness.

    Advanced in Insomnia

    Kenichi Kuriyama
    Advanced in Insomnia

    Kenichi Kuriyama
    Kodaira, JP 

    Kenichi Kuriyama practices practicing medicine in Kodaira, Japan. Mr. Kuriyama is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia, ADULT Syndrome, Excessive Daytime Sleepiness, and Bipolar Disorder (BPD).

    Advanced in Insomnia

    Nakao Iwata
    Advanced in Insomnia

    Nakao Iwata
    Toyoake, JP 

    Nakao Iwata practices practicing medicine in Toyoake, Japan. Iwata is rated as an Advanced expert by MediFind in the treatment of Insomnia. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Schizophrenia, Bipolar Disorder (BPD), Major Depression, and Autism Spectrum Disorder.

    Advanced in Insomnia

    Motohiro Ozone
    Advanced in Insomnia

    Motohiro Ozone
    Kurume, JP 

    Motohiro Ozone practices practicing medicine in Kurume, Japan. Ozone is rated as an Advanced expert by MediFind in the treatment of Insomnia. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Insomnia, Narcolepsy, Excessive Daytime Sleepiness, and Drowsiness.

    Advanced in Insomnia

    Yukiyoshi Sumi
    Advanced in Insomnia

    Yukiyoshi Sumi
    Otsu, JP 

    Yukiyoshi Sumi practices practicing medicine in Otsu, Japan. Sumi is rated as an Advanced expert by MediFind in the treatment of Insomnia. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Insomnia, Low Blood Pressure, Thyroid Storm, and Orthostatic Hypotension.

    Advanced in Insomnia

    Makoto Uchiyama
    Advanced in Insomnia

    Makoto Uchiyama
    Tokyo, JP 

    Makoto Uchiyama practices practicing medicine in Tokyo, Japan. Mr. Uchiyama is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Insomnia, Excessive Daytime Sleepiness, Cerebral Hypoxia, and Drowsiness.

    Advanced in Insomnia

    Masahiro Suzuki
    Advanced in Insomnia

    Masahiro Suzuki
    Itabashi, JP 

    Masahiro Suzuki practices practicing medicine in Itabashi, Japan. Mr. Suzuki is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Insomnia, Excessive Daytime Sleepiness, Bipolar Disorder (BPD), and ADULT Syndrome.

    Advanced in Insomnia

    Ayaka Ubara
    Advanced in Insomnia

    Ayaka Ubara
    Tokyo, JP 

    Ayaka Ubara practices practicing medicine in Tokyo, Japan. Ms. Ubara is rated as an Advanced expert by MediFind in the treatment of Insomnia. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses Insomnia.

    Advanced in Insomnia

    Masahiro Takeshima
    Advanced in Insomnia

    Masahiro Takeshima
    Hondo, JP 

    Masahiro Takeshima practices practicing medicine in Hondo, Japan. Mr. Takeshima is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Drowsiness, Insomnia, Major Depression, and Narcolepsy.

    Advanced in Insomnia

    Naoki Kubota
    Advanced in Insomnia

    Naoki Kubota
    Tokyo, JP 

    Naoki Kubota practices practicing medicine in Tokyo, Japan. Mr. Kubota is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia, Alzheimer's Disease, and Dementia.

    Advanced in Insomnia

    Tomohiro Utsumi
    Advanced in Insomnia

    Tomohiro Utsumi
    Tokyo, JP 

    Tomohiro Utsumi practices practicing medicine in Tokyo, Japan. Mr. Utsumi is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia and Bipolar Disorder (BPD).

    Advanced in Insomnia

    Yoshitaka Kaneita
    Advanced in Insomnia

    Yoshitaka Kaneita
    Tokyo, JP 

    Yoshitaka Kaneita practices practicing medicine in Tokyo, Japan. Mr. Kaneita is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia, Excessive Daytime Sleepiness, Drowsiness, and ADULT Syndrome.

    Advanced in Insomnia

    Shun Nakajima
    Advanced in Insomnia

    Shun Nakajima
    Tsukuba, JP 

    Shun Nakajima practices practicing medicine in Tsukuba, Japan. Mr. Nakajima is rated as an Advanced expert by MediFind in the treatment of Insomnia. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Insomnia, Major Depression, and Obsessive-Compulsive Disorder (OCD).

    Advanced in Insomnia

    Yuki Furukawa
    Advanced in Insomnia

    Yuki Furukawa
    Tokyo, JP 

    Yuki Furukawa practices practicing medicine in Tokyo, Japan. Furukawa is rated as an Advanced expert by MediFind in the treatment of Insomnia. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Insomnia, Schizophrenia, Major Depression, and Pneumonia.

    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 338

    Last Updated: 04/28/2026

    What is the definition of Insomnia?

    Insomnia is trouble falling asleep, staying asleep (usually through the night), or waking up too early in the morning.

    Episodes of insomnia may come and go or be long-lasting.

    The quality of your sleep is as important as how much sleep you get.

    When should I see an Insomnia 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 an Insomnia 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 Insomnia doctor in Japan?

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

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    How does MediFind rank Insomnia 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 Insomnia 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 an Insomnia 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 Insomnia doctor search results page. 

    Why is it important to get a second opinion from a different Insomnia 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 an Insomnia 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 Insomnia 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 Insomnia 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 Insomnia doctors in Japan?

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

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