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    Last Updated: 01/09/2026

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    MediFind found 124 doctor with experience in HER-2 Positive Breast Cancer near Japan. Of these, 95 are Experienced, 23 are Advanced and 6 are Distinguished.

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    124 providers found
      Masakazu Toi
      Distinguished in HER-2 Positive Breast Cancer

      Masakazu Toi
      Distinguished in HER-2 Positive Breast Cancer

      Masakazu Toi
      Komagome, JP 

      Masakazu Toi practices in Komagome, Japan. Mr. Toi is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Agranulocytosis, Mastectomy, and Hormone Replacement Therapy (HRT).

      Hiroji Iwata
      Distinguished in HER-2 Positive Breast Cancer

      Hiroji Iwata
      Distinguished in HER-2 Positive Breast Cancer

      Hiroji Iwata
      Nagoya, JP 

      Hiroji Iwata practices in Nagoya, Japan. Iwata is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Epidermolysis Bullosa Acquisita, Mastectomy, and Percutaneous Coronary Intervention (PCI).

      Distinguished in HER-2 Positive Breast Cancer

      Norikazu Masuda
      Distinguished in HER-2 Positive Breast Cancer

      Norikazu Masuda
      Kyoto, JP 

      Norikazu Masuda practices in Kyoto, Japan. Masuda is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, Agranulocytosis, HER-2 Positive Breast Cancer, Mastectomy, and Oophorectomy.

      Learn about our expert tiers
      Distinguished in HER-2 Positive Breast Cancer

      Masato Takahashi
      Distinguished in HER-2 Positive Breast Cancer

      Masato Takahashi
      Sapporo, JP 

      Masato Takahashi practices in Sapporo, Japan. Mr. Takahashi is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, Triple-Negative Breast Cancer, HER-2 Positive Breast Cancer, Mastectomy, and Tissue Biopsy.

      Distinguished in HER-2 Positive Breast Cancer

      Shoichiro Ohtani
      Distinguished in HER-2 Positive Breast Cancer

      Shoichiro Ohtani
      Hiroshima, JP 

      Shoichiro Ohtani practices in Hiroshima, Japan. Ohtani is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Menopause, Triple-Negative Breast Cancer, and Mastectomy.

      Distinguished in HER-2 Positive Breast Cancer

      Koichi Inoue
      Distinguished in HER-2 Positive Breast Cancer

      Koichi Inoue
      Osaka, JP 

      Koichi Inoue practices in Osaka, Japan. Mr. Inoue is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Atrial Fibrillation, Pelizaeus-Merzbacher Disease, CACH Syndrome, Cardiac Ablation, and Gastrectomy.

      Kenjiro Aogi
      Advanced in HER-2 Positive Breast Cancer

      Kenjiro Aogi
      Advanced in HER-2 Positive Breast Cancer

      Kenjiro Aogi
      Matsuyama, JP 

      Kenjiro Aogi practices in Matsuyama, Japan. Mr. Aogi is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Breast Cancer in Men, and Mastectomy.

      Yoshinori Ito
      Advanced in HER-2 Positive Breast Cancer

      Yoshinori Ito
      Advanced in HER-2 Positive Breast Cancer

      Yoshinori Ito
      Tokyo, JP 

      Yoshinori Ito practices in Tokyo, Japan. Mr. Ito is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Esophageal Cancer, Breast Cancer, Mononucleosis, Mastectomy, and Endoscopy.

      Advanced in HER-2 Positive Breast Cancer

      Toshinari Yamashita
      Advanced in HER-2 Positive Breast Cancer

      Toshinari Yamashita
      Yokohama, JP 

      Toshinari Yamashita practices in Yokohama, Japan. Yamashita is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Febrile Neutropenia, Mastectomy, and Bone Marrow Transplant.

      Advanced in HER-2 Positive Breast Cancer

      Hideaki Bando
      Advanced in HER-2 Positive Breast Cancer

      Hideaki Bando
      Kashiwa, JP 

      Hideaki Bando practices in Kashiwa, Japan. Bando is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Colorectal Cancer, Stomach Cancer, Lung Metastases, Tissue Biopsy, and Endoscopy.

      Advanced in HER-2 Positive Breast Cancer

      Hiroshi Ishiguro
      Advanced in HER-2 Positive Breast Cancer

      Hiroshi Ishiguro
      Toyonaka, JP 

      Hiroshi Ishiguro practices in Toyonaka, Japan. Mr. Ishiguro is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, Autism Spectrum Disorder, Febrile Neutropenia, and HER-2 Positive Breast Cancer.

      Advanced in HER-2 Positive Breast Cancer

      Shunji -. Takahashi
      Advanced in HER-2 Positive Breast Cancer

      Shunji -. Takahashi
      Wako, JP 

      Shunji Takahashi practices in Wako, Japan. Takahashi is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Anaplastic Thyroid Cancer, Breast Cancer, Adult Soft Tissue Sarcoma, Endoscopy, and Bone Marrow Transplant.

      Advanced in HER-2 Positive Breast Cancer

      Hiroi Kasai
      Advanced in HER-2 Positive Breast Cancer

      Hiroi Kasai
      Kyoto, JP 

      Hiroi Kasai practices in Kyoto, Japan. Kasai is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are HER-2 Positive Breast Cancer, Esophageal Cancer, and Breast Cancer.

      Advanced in HER-2 Positive Breast Cancer

      Toshimi Takano
      Advanced in HER-2 Positive Breast Cancer

      Toshimi Takano
      Tokyo, JP 

      Toshimi Takano practices in Tokyo, Japan. Takano is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, Febrile Neutropenia, Agranulocytosis, Mastectomy, and Colostomy.

      Advanced in HER-2 Positive Breast Cancer

      Shinji Ohno
      Advanced in HER-2 Positive Breast Cancer

      Shinji Ohno
      Kagoshima, JP 

      Shinji Ohno practices in Kagoshima, Japan. Mr. Ohno is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, Agranulocytosis, Febrile Neutropenia, Mastectomy, and Hormone Replacement Therapy (HRT).

      Advanced in HER-2 Positive Breast Cancer

      Eiji Suzuki
      Advanced in HER-2 Positive Breast Cancer

      Eiji Suzuki
      Kobe, JP 

      Eiji Suzuki practices in Kobe, Japan. Mr. Suzuki is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, BRCA Positive Breast Cancer, and Mastectomy.

      Advanced in HER-2 Positive Breast Cancer

      Naoto Kondo
      Advanced in HER-2 Positive Breast Cancer

      Naoto Kondo
      Nagoya, JP 

      Naoto Kondo practices in Nagoya, Japan. Mr. Kondo is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Febrile Neutropenia, and Mastectomy.

      Advanced in HER-2 Positive Breast Cancer

      Sayuri Akiyoshi
      Advanced in HER-2 Positive Breast Cancer

      Sayuri Akiyoshi
      Fukuoka, JP 

      Sayuri Akiyoshi practices in Fukuoka, Japan. Ms. Akiyoshi is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Breast Enlargement In Males, and Mastectomy.

      Advanced in HER-2 Positive Breast Cancer

      Satoru Morita
      Advanced in HER-2 Positive Breast Cancer

      Satoru Morita
      Kita, JP 

      Satoru Morita practices in Kita, Japan. Mr. Morita is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Pulmonary Tuberculosis, EGFR Positive Lung Cancer, Lung Cancer, Endoscopy, and Hepatectomy.

      Advanced in HER-2 Positive Breast Cancer

      Mitsuhiko Iwamoto
      Advanced in HER-2 Positive Breast Cancer

      Mitsuhiko Iwamoto
      Takatsuki, JP 

      Mitsuhiko Iwamoto practices in Takatsuki, Japan. Iwamoto is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. Their top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Breast Infection, Febrile Neutropenia, 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 124

      Last Updated: 01/09/2026

      What is the definition of HER-2 Positive Breast Cancer?

      HER2-positive breast cancer is a subtype of breast cancer that contains human epidermal growth factor receptor 2 (HER2), which is a protein that increases the growth of cancer cells. One out of five breast cancers contain the HER2 protein. Eighteen-to-twenty percent of invasive breast cancers are HER2-positive, which are more aggressive than other breast cancers, more likely to spread and relapse, and have resulted in a decreased survival rate in the past. While previously considered to be the most aggressive type of breast cancer, HER-2 positive breast cancer can now be treated with new biologic targeted therapies that have significantly improved outcomes. HER2-positive breast cancer is categorized in stages that take into account the diameter of the tumor, whether the cancer has spread to axillary (underarm) lymph nodes, and whether the cancer has spread to other organs, such as the liver, lung, brain and bone. Staging allows for treatment plans that target each patient’s individual breast cancer disease. Early breast cancers are staged based on the following criteria: Stage 0 – Ductal cancer in situ (DCIS), or a noninvasive breast cancer that is limited to the ducts. Stage I (A/B) – Cancer has spread from ducts to the surrounding fatty breast tissue. Tumor is smaller than 2 centimeters and has not spread to lymph nodes. Stage II (IIA/B) – Cancer has spread from ducts to the surrounding fatty breast tissue and may have spread to near lymph nodes. Tumor is between 2-to-5 centimeters wide. Advanced breast cancers are staged based on the following criteria: Stage III (IIIA/B) – The tumor is larger than 5 centimeters, cancer may or may not have spread to lymph nodes, or the tumor is smaller, and cancer has spread to lymph nodes. Stage IV – Metastatic Breast Cancer. Cancer has spread to lymph nodes and other parts of the body, with other organs affected, such as liver, lungs, brain, or bones.

      When should I see a HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive Breast Cancer doctor in Japan?

      You can find a HER-2 Positive Breast Cancer doctor in any of the 10 largest U.S. cities by clicking below:

      HER-2 Positive Breast Cancer doctor near New York, NY
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      HER-2 Positive Breast Cancer doctor near Chicago, IL
      HER-2 Positive Breast Cancer doctor near Houston, TX
      HER-2 Positive Breast Cancer doctor near Phoenix, AZ
      HER-2 Positive Breast Cancer doctor near Philadelphia, PA
      HER-2 Positive Breast Cancer doctor near Atlanta, GA
      HER-2 Positive Breast Cancer doctor near Boston, MA
      HER-2 Positive Breast Cancer doctor near Dallas, TX
      HER-2 Positive Breast Cancer doctor near San Jose, CA

      How does MediFind rank HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive Breast Cancer doctor search results page. 

      Why is it important to get a second opinion from a different HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive 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 HER-2 Positive Breast Cancer doctors in Japan?

      Look for the filter feature on the left side of the HER-2 Positive 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 HER-2 Positive Breast Cancer doctor that offers video calls?

      Look for the filter feature on the left-side of the HER-2 Positive 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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