The 20 Best Drowsiness Doctors in Japan

Find the Top Drowsiness Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 262 doctor with experience in Drowsiness near Japan. Of these, 209 are Experienced, 37 are Advanced, 13 are Distinguished and 3 are Elite.

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262 providers found
    Elite in Drowsiness

    Takashi Kanbayashi
    Elite in Drowsiness

    Takashi Kanbayashi
    Tsukuba, JP 

    Takashi Kanbayashi practices practicing medicine in Tsukuba, Japan. Mr. Kanbayashi is rated as an Elite expert by MediFind in the treatment of Drowsiness. He is also highly rated in 11 other conditions, according to our data. His clinical expertise encompasses Drowsiness, Narcolepsy, Idiopathic Hypersomnia, and Excessive Daytime Sleepiness.

    Elite in Drowsiness

    Katsushi Tokunaga
    Elite in Drowsiness

    Katsushi Tokunaga
    Tokyo, JP 

    Katsushi Tokunaga practices practicing medicine in Tokyo, Japan. Tokunaga is rated as an Elite expert by MediFind in the treatment of Drowsiness. They are also highly rated in 18 other conditions, according to our data. Their clinical expertise encompasses Stevens-Johnson Syndrome, Erythema Multiforme, Excessive Daytime Sleepiness, and Narcolepsy.

    Elite in Drowsiness

    Aya Imanishi
    Elite in Drowsiness

    Aya Imanishi
    Akita, JP 

    Aya Imanishi practices practicing medicine in Akita, Japan. Ms. Imanishi is rated as an Elite expert by MediFind in the treatment of Drowsiness. She is also highly rated in 5 other conditions, according to our data. Her clinical expertise encompasses Drowsiness, Narcolepsy, Idiopathic Hypersomnia, and Excessive Daytime Sleepiness.

    Learn about our expert tiers
    Distinguished in Drowsiness

    Takeshi Sakurai
    Distinguished in Drowsiness

    Takeshi Sakurai
    Tsukuba, JP 

    Takeshi Sakurai practices practicing medicine in Tsukuba, Japan. Mr. Sakurai is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Narcolepsy, Drowsiness, Excessive Daytime Sleepiness, and Schizophrenia.

    Distinguished in Drowsiness

    Makoto Honda
    Distinguished in Drowsiness

    Makoto Honda
    Tokyo, JP 

    Makoto Honda practices practicing medicine in Tokyo, Japan. Mr. Honda is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    Distinguished in Drowsiness

    Yohei Sagawa
    Distinguished in Drowsiness

    Yohei Sagawa
    Akita, JP 

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

    Distinguished in Drowsiness

    Masaya Honda
    Distinguished in Drowsiness

    Masaya Honda
    Ube, JP 

    Masaya Honda practices practicing medicine in Ube, Japan. Mr. Honda is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses Excessive Daytime Sleepiness, Drowsiness, Narcolepsy, Idiopathic Hypersomnia, and Thymectomy.

    Distinguished in Drowsiness

    Akihiro Yamanaka
    Distinguished in Drowsiness

    Akihiro Yamanaka
    Crest, 
    Honcho, JP 

    Akihiro Yamanaka practices practicing medicine in Honcho, Japan. Mr. Yamanaka is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Narcolepsy, Drowsiness, Excessive Daytime Sleepiness, and Hypothermia.

    Distinguished in Drowsiness

    Yuichi Inoue
    Distinguished in Drowsiness

    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 Drowsiness. 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 Drowsiness

    Taku Miyagawa
    Distinguished in Drowsiness

    Taku Miyagawa
    Tokyo, JP 

    Taku Miyagawa practices practicing medicine in Tokyo, Japan. Mr. Miyagawa is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    Distinguished in Drowsiness

    Wakako Ito
    Distinguished in Drowsiness

    Wakako Ito
    Tokyo, JP 

    Wakako Ito practices practicing medicine in Tokyo, Japan. Ito is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Idiopathic Hypersomnia, and Teratoma of the Mediastinum.

    Distinguished in Drowsiness

    Tohru Kodama
    Distinguished in Drowsiness

    Tohru Kodama
    Tokyo, JP 

    Tohru Kodama practices practicing medicine in Tokyo, Japan. Kodama is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    Distinguished in Drowsiness

    Kazuo Mishima
    Distinguished in Drowsiness

    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 Drowsiness. 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 Drowsiness

    Ko Tsutsui
    Distinguished in Drowsiness

    Ko Tsutsui
    Akita, JP 

    Ko Tsutsui practices practicing medicine in Akita, Japan. Tsutsui is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Anti-NMDA Receptor Encephalitis, and Idiopathic Hypersomnia.

    Distinguished in Drowsiness

    Haruhide Kimura
    Distinguished in Drowsiness

    Haruhide Kimura
    Fujisawa, JP 

    Haruhide Kimura practices practicing medicine in Fujisawa, Japan. Kimura is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Narcolepsy, Drowsiness, Schizophrenia, and Excessive Daytime Sleepiness.

    Distinguished in Drowsiness

    Taisuke Ono
    Distinguished in Drowsiness

    Taisuke Ono
    Kahoku, JP 

    Taisuke Ono practices practicing medicine in Kahoku, Japan. Ono is rated as a Distinguished expert by MediFind in the treatment of Drowsiness. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    Advanced in Drowsiness

    Mihoko Shimada
    Advanced in Drowsiness

    Mihoko Shimada
    Tokyo, JP 

    Mihoko Shimada practices practicing medicine in Tokyo, Japan. Shimada is rated as an Advanced expert by MediFind in the treatment of Drowsiness. They are also highly rated in 4 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    Advanced in Drowsiness

    Shigeru Chiba
    Advanced in Drowsiness

    Shigeru Chiba
    Tsukuba, JP 

    Shigeru Chiba practices practicing medicine in Tsukuba, Japan. Mr. Chiba is rated as an Advanced expert by MediFind in the treatment of Drowsiness. He is also highly rated in 24 other conditions, according to our data. His clinical expertise encompasses T-Cell Lymphoma, Angioimmunoblastic T-cell Lymphoma, Lymphofollicular Hyperplasia, Myelodysplastic Syndrome (MDS), and Bone Marrow Transplant.

    Advanced in Drowsiness

    Keisuke Suzuki
    Advanced in Drowsiness

    Keisuke Suzuki
    Tokyo, JP 

    Keisuke Suzuki practices practicing medicine in Tokyo, Japan. Mr. Suzuki is rated as an Advanced expert by MediFind in the treatment of Drowsiness. He is also highly rated in 30 other conditions, according to our data. His clinical expertise encompasses Restless Legs Syndrome, Spinal and Bulbar Muscular Atrophy, Migraine, Gastrostomy, and Orchiectomy.

    Advanced in Drowsiness

    Hiromi Toyoda
    Advanced in Drowsiness

    Hiromi Toyoda
    Tokyo, JP 

    Hiromi Toyoda practices practicing medicine in Tokyo, Japan. Toyoda is rated as an Advanced expert by MediFind in the treatment of Drowsiness. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Drowsiness, Narcolepsy, Excessive Daytime Sleepiness, and Idiopathic Hypersomnia.

    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 262

    Last Updated: 04/28/2026

    What is the definition of Drowsiness?

    Drowsiness refers to feeling more sleepy than normal during the day. People who are drowsy may fall asleep when they do not want to or at times which can lead to safety concerns.

    When should I see a Drowsiness 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 Drowsiness 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 Drowsiness doctor in Japan?

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

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    How does MediFind rank Drowsiness 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 Drowsiness 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 Drowsiness 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 Drowsiness doctor search results page. 

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

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

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