The 20 Best Breast Cancer Doctors in Japan

Find the Top Breast Cancer Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 3504 doctor with experience in Breast Cancer near Japan. Of these, 2952 are Experienced, 416 are Advanced, 103 are Distinguished and 33 are Elite.

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3,504 providers found
    Elite in Breast Cancer

    Masakazu Toi
    Elite in Breast Cancer

    Masakazu Toi
    Tokyo, JP 

    Masakazu Toi practices practicing medicine in Tokyo, Japan. Mr. Toi is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, PIK3CA-Related Overgrowth Spectrum, Mastectomy, and Hormone Replacement Therapy (HRT).

    Elite in Breast Cancer

    Hiroji Iwata
    Elite in Breast Cancer

    Hiroji Iwata
    Nagoya, JP 

    Hiroji Iwata practices practicing medicine in Nagoya, Japan. Iwata is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 25 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, PIK3CA-Related Overgrowth Spectrum, HER-2 Positive Breast Cancer, Mastectomy, and Hormone Replacement Therapy (HRT).

    Elite in Breast Cancer

    Kenji Tamura
    Elite in Breast Cancer

    Kenji Tamura
    Tsukuba, JP 

    Kenji Tamura practices practicing medicine in Tsukuba, Japan. Mr. Tamura is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 17 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Peripheral Neuropathy, Adult Soft Tissue Sarcoma, Mastectomy, and Bone Marrow Aspiration.

    Are you looking for a specific type of Breast Cancer?

    Common conditions include: Breast Cancer in Men, HER-2 Positive Breast Cancer, Inflammatory Breast Cancer, Triple-Negative Breast Cancer

    Learn about our expert tiers
    Elite in Breast Cancer

    Kenjiro Aogi
    Elite in Breast Cancer

    Kenjiro Aogi
    Matsuyama, JP 

    Kenjiro Aogi practices practicing medicine in Matsuyama, Japan. Mr. Aogi is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Breast Cancer in Men, and Mastectomy.

    Elite in Breast Cancer

    Takayuki Iwamoto
    Elite in Breast Cancer

    Takayuki Iwamoto
    Kurashiki, JP 

    Takayuki Iwamoto practices practicing medicine in Kurashiki, Japan. Mr. Iwamoto is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Inflammatory Breast Cancer, Menopause, Amenorrhea, and Mastectomy.

    Elite in Breast Cancer

    Chikako Shimizu
    Elite in Breast Cancer

    Chikako Shimizu
    Tokyo, JP 

    Chikako Shimizu practices practicing medicine in Tokyo, Japan. Shimizu is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 8 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Peripheral Neuropathy, Febrile Neutropenia, Mastectomy, and Bone Marrow Aspiration.

    Elite in Breast Cancer

    Shinzaburo Noguchi
    Elite in Breast Cancer

    Shinzaburo Noguchi
    Nishinomiya-hama, JP 

    Shinzaburo Noguchi practices practicing medicine in Nishinomiya-hama, Japan. Noguchi is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Menopause, PIK3CA-Related Overgrowth Spectrum, Fibroadenoma, and Mastectomy.

    Elite in Breast Cancer

    Norikazu Masuda
    Elite in Breast Cancer

    Norikazu Masuda
    Kawahara, JP 

    Norikazu Masuda practices practicing medicine in Kawahara, Japan. Masuda is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 13 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Agranulocytosis, HER-2 Positive Breast Cancer, Mastectomy, and Oophorectomy.

    Elite in Breast Cancer

    Masato Takahashi
    Elite in Breast Cancer

    Masato Takahashi
    Sapporo, JP 

    Masato Takahashi practices practicing medicine in Sapporo, Japan. Mr. Takahashi is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, PIK3CA-Related Overgrowth Spectrum, Mastectomy, and Tissue Biopsy.

    Elite in Breast Cancer

    Shinji Ohno
    Elite in Breast Cancer

    Shinji Ohno
    Kagoshima, JP 

    Shinji Ohno practices practicing medicine in Kagoshima, Japan. Mr. Ohno is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Agranulocytosis, Febrile Neutropenia, Mastectomy, and Hormone Replacement Therapy (HRT).

    Elite in Breast Cancer

    Shigehira Saji
    Elite in Breast Cancer

    Shigehira Saji
    Fukushima, JP 

    Shigehira Saji practices practicing medicine in Fukushima, Japan. Saji is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Menopause, Colorectal Cancer, and Mastectomy.

    Elite in Breast Cancer

    Tadahiko Shien
    Elite in Breast Cancer

    Tadahiko Shien
    Okayama, JP 

    Tadahiko Shien practices practicing medicine in Okayama, Japan. Shien is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, HER2 Negative Breast Cancer, Angiosarcoma, Mastectomy, and Thyroidectomy.

    Elite in Breast Cancer

    Seigo Nakamura
    Elite in Breast Cancer

    Seigo Nakamura
    Tokyo, JP 

    Seigo Nakamura practices practicing medicine in Tokyo, Japan. Mr. Nakamura is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Ovarian Cancer, Febrile Neutropenia, Mastectomy, and Salpingo-Oophorectomy.

    Elite in Breast Cancer

    Masanori Oshi
    Elite in Breast Cancer

    Masanori Oshi
    Yokohama, JP 

    Masanori Oshi practices practicing medicine in Yokohama, Japan. Mr. Oshi is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, BRCA Positive Breast Cancer, Mastectomy, and Tissue Biopsy.

    Elite in Breast Cancer

    Takashi Ishikawa
    Elite in Breast Cancer

    Takashi Ishikawa
    Tokyo, JP 

    Takashi Ishikawa practices practicing medicine in Tokyo, Japan. Mr. Ishikawa is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Gastrointestinal Stromal Tumor, Mastectomy, and Gastrectomy.

    Elite in Breast Cancer

    Takanori Ishida
    Elite in Breast Cancer

    Takanori Ishida
    Sendai, JP 

    Takanori Ishida practices practicing medicine in Sendai, Japan. Mr. Ishida is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, HER-2 Positive Breast Cancer, Mastectomy, and Endoscopy.

    Elite in Breast Cancer

    Takayuki Kinoshita
    Elite in Breast Cancer

    Takayuki Kinoshita
    Meguro, JP 

    Takayuki Kinoshita practices practicing medicine in Meguro, Japan. Mr. Kinoshita is rated as an Elite expert by MediFind in the treatment of Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Fibroadenoma, Autosomal Recessive Hypotrichosis, Mastectomy, and Cardiac Ablation.

    Elite in Breast Cancer

    Hirofumi Mukai
    Elite in Breast Cancer

    Hirofumi Mukai
    Kashiwa, JP 

    Hirofumi Mukai practices practicing medicine in Kashiwa, Japan. Mukai is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 5 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Agranulocytosis, Febrile Neutropenia, Mastectomy, and Hormone Replacement Therapy (HRT).

    Elite in Breast Cancer

    Toshimi Takano
    Elite in Breast Cancer

    Toshimi Takano
    Tokyo, JP 

    Toshimi Takano practices practicing medicine in Tokyo, Japan. Takano is rated as an Elite expert by MediFind in the treatment of Breast Cancer. They are also highly rated in 6 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Febrile Neutropenia, Agranulocytosis, Mastectomy, and Colostomy.

    Elite in Breast Cancer

    Eriko Tokunaga
    Elite in Breast Cancer

    Eriko Tokunaga
    Fukuoka, JP 

    Eriko Tokunaga practices practicing medicine in Fukuoka, Japan. Ms. Tokunaga is rated as an Elite expert by MediFind in the treatment of Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Breast Cancer in Men, Triple-Negative Breast Cancer, Menopause, and Mastectomy.

    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 3,504

    Last Updated: 04/28/2026

    What is the definition of Breast Cancer?

    Breast cancer is cancer that starts in the tissues of the breast. There are two main types of breast cancer:

    • Ductal carcinoma starts in the tubes (ducts) that carry milk from the breast to the nipple. Most breast cancers are of this type.
    • Lobular carcinoma starts in the parts of the breast, called lobules, which produce milk.

    In rare cases, other kinds of breast cancer can start in other areas of the breast.

    When should I see a Breast Cancer 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 Breast Cancer 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 Breast Cancer doctor in Japan?

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

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    Breast Cancer doctor near San Jose, CA

    How does MediFind rank Breast Cancer 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 Breast Cancer 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 Breast Cancer 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 Breast Cancer doctor search results page. 

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

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

    Look for the filter feature on the left-side of the Breast Cancer 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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