The 20 Best Triple-Negative Breast Cancer Doctors Near Me in Osaka, JP

Find the Top Triple-Negative Breast Cancer Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 21 doctor with experience in Triple-Negative Breast Cancer near Osaka, JP. Of these, 16 are Experienced and 5 are Advanced.

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21 providers found
    Advanced in Triple-Negative Breast Cancer

    Hiroyuki Yasojima
    Advanced in Triple-Negative Breast Cancer

    Hiroyuki Yasojima
    Osaka, JP 

    Hiroyuki Yasojima practices practicing medicine in Osaka, Japan. Mr. Yasojima is rated as an Advanced expert by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Febrile Neutropenia, Peripheral Neuropathy, and Mastectomy.

    Advanced in Triple-Negative Breast Cancer

    Yuichiro Kikawa
    Advanced in Triple-Negative Breast Cancer

    Yuichiro Kikawa
    Hirakata, JP 

    Yuichiro Kikawa practices practicing medicine in Hirakata, Japan. Kikawa is rated as an Advanced expert by MediFind in the treatment of Triple-Negative Breast Cancer. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Breast Cancer, Peripheral Neuropathy, Triple-Negative Breast Cancer, PIK3CA-Related Overgrowth Spectrum, and Mastectomy.

    Advanced in Triple-Negative Breast Cancer

    Masahiro Takada
    Advanced in Triple-Negative Breast Cancer

    Masahiro Takada
    Hirakata, JP 

    Masahiro Takada practices practicing medicine in Hirakata, Japan. Mr. Takada is rated as an Advanced expert by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Cerebral Hypoxia, and Pustules.

    Learn about our expert tiers
    Advanced in Triple-Negative Breast Cancer

    Hiroshi Ishiguro
    Advanced in Triple-Negative Breast Cancer

    Hiroshi Ishiguro
    Osaka, JP 

    Hiroshi Ishiguro practices practicing medicine in Osaka, Japan. Mr. Ishiguro is rated as an Advanced expert by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Autism Spectrum Disorder, Febrile Neutropenia, HER-2 Positive Breast Cancer, and Angioplasty.

    Advanced in Triple-Negative Breast Cancer

    Masahide Takahashi
    Advanced in Triple-Negative Breast Cancer

    Masahide Takahashi
    Osaka Prefecture University*, 
    Sakai, JP 

    Masahide Takahashi practices practicing medicine in Sakai, Japan. Takahashi is rated as an Advanced expert by MediFind in the treatment of Triple-Negative Breast Cancer. They are also highly rated in 3 other conditions, according to our data. Their clinical expertise encompasses Multiple Endocrine Neoplasia Type 2, Neurohypophyseal Diabetes Insipidus, Triple-Negative Breast Cancer, Pancreaticoduodenectomy, and Tissue Biopsy.

    Experienced in Triple-Negative Breast Cancer

    Tetsuro Yoshimaru
    Experienced in Triple-Negative Breast Cancer

    Tetsuro Yoshimaru
    Osaka, JP 

    Tetsuro Yoshimaru practices practicing medicine in Osaka, Japan. Mr. Yoshimaru is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, and Muscle Invasive Bladder Cancer.

    Experienced in Triple-Negative Breast Cancer

    Toyomasa Katagiri
    Experienced in Triple-Negative Breast Cancer

    Toyomasa Katagiri
    Osaka, JP 

    Toyomasa Katagiri practices practicing medicine in Osaka, Japan. Katagiri is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. They are also highly rated in 2 other conditions, according to our data. Their clinical expertise encompasses Synovial Sarcoma, Breast Cancer, Muscle Invasive Bladder Cancer, and Thyroid Cancer.

    Experienced in Triple-Negative Breast Cancer

    Toshihiro Kai
    Experienced in Triple-Negative Breast Cancer

    Toshihiro Kai
    Osaka, JP 

    Toshihiro Kai practices practicing medicine in Osaka, Japan. Kai is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. Their clinical expertise encompasses Triple-Negative Breast Cancer, Breast Cancer, Nonalcoholic Steatohepatitis (NASH), and Non-Alcoholic Fatty Liver Disease.

    Experienced in Triple-Negative Breast Cancer

    Koichi Inoue
    Experienced in Triple-Negative Breast Cancer

    Koichi Inoue
    Osaka, JP 

    Koichi Inoue practices practicing medicine in Osaka, Japan. Mr. Inoue is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 27 other conditions, according to our data. His clinical expertise encompasses Atrial Fibrillation, Pelizaeus-Merzbacher Disease, CACH Syndrome, Cardiac Ablation, and Gastrectomy.

    Experienced in Triple-Negative Breast Cancer

    Kazuma Higashisaka
    Experienced in Triple-Negative Breast Cancer

    Kazuma Higashisaka
    Osaka, JP 

    Kazuma Higashisaka practices practicing medicine in Osaka, Japan. Mr. Higashisaka is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Breast Cancer, Lung Cancer, Lung Adenocarcinoma, and Non-Small Cell Lung Cancer (NSCLC).

    Experienced in Triple-Negative Breast Cancer

    Takaki Sakurai
    Experienced in Triple-Negative Breast Cancer

    Takaki Sakurai
    Osaka, JP 

    Takaki Sakurai practices practicing medicine in Osaka, Japan. Sakurai is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Malakoplakia, Breast Cancer, Lymphangitis, Vagotomy, and Bladder Reconstruction.

    Experienced in Triple-Negative Breast Cancer

    Yuya Haga
    Experienced in Triple-Negative Breast Cancer

    Yuya Haga
    Suita, JP 

    Yuya Haga practices practicing medicine in Suita, Japan. Mr. Haga is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Breast Cancer, Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), and Triple-Negative Breast Cancer.

    Experienced in Triple-Negative Breast Cancer

    Hirofumi Tsujino
    Experienced in Triple-Negative Breast Cancer

    Hirofumi Tsujino
    The University Of Osaka 1-13 Machikaneyamacho Toyonaka Osaka 560-0043 Japan, 
    Osaka, JP 

    Hirofumi Tsujino practices practicing medicine in Osaka, Japan. Tsujino is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. Their clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, Lung Adenocarcinoma, and Non-Small Cell Lung Cancer (NSCLC).

    Experienced in Triple-Negative Breast Cancer

    Hirotaka Morishima
    Experienced in Triple-Negative Breast Cancer

    Hirotaka Morishima
    Osaka, JP 

    Hirotaka Morishima practices practicing medicine in Osaka, Japan. Morishima is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. They are also highly rated in 1 other condition, according to our data. Their clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, Fibroadenoma, Pancreaticoduodenectomy, and Gastrectomy.

    Experienced in Triple-Negative Breast Cancer

    Shuichi Shimma
    Experienced in Triple-Negative Breast Cancer

    Shuichi Shimma
    Suita, JP 

    Shuichi Shimma practices practicing medicine in Suita, Japan. Mr. Shimma is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Adrenal Gland Adenoma, Hyperaldosteronism, Triple-Negative Breast Cancer, and Adrenal Cancer.

    Experienced in Triple-Negative Breast Cancer

    Hirofumi Hanaoka
    Experienced in Triple-Negative Breast Cancer

    Hirofumi Hanaoka
    Hirakata, JP 

    Hirofumi Hanaoka practices practicing medicine in Hirakata, Japan. Hanaoka is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. Their clinical expertise encompasses Bullae, Mesothelioma, Neuroblastoma, and Lung Cancer.

    Experienced in Triple-Negative Breast Cancer

    Hiroshi Hosoda
    Experienced in Triple-Negative Breast Cancer

    Hiroshi Hosoda
    Osaka, JP 

    Hiroshi Hosoda practices practicing medicine in Osaka, Japan. Mr. Hosoda is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Acute Kidney Failure, Pleuropulmonary Blastoma, Pulmonary Fibrosis, and Heart Failure.

    Experienced in Triple-Negative Breast Cancer

    Akihiro Usui
    Experienced in Triple-Negative Breast Cancer

    Akihiro Usui
    Sakai, JP 

    Akihiro Usui practices practicing medicine in Sakai, Japan. Mr. Usui is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. His clinical expertise encompasses Cholangiocarcinoma (Bile Duct Cancer), Bronchogenic Cyst, Esophageal Cancer, Pancreaticoduodenectomy, and Splenectomy.

    Experienced in Triple-Negative Breast Cancer

    Shozo Nishida
    Experienced in Triple-Negative Breast Cancer

    Shozo Nishida
    Osaka, JP 

    Shozo Nishida practices practicing medicine in Osaka, Japan. Mr. Nishida is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Magnesium Deficiency, Multiple Myeloma, Chronic Myelogenous Leukemia (CML), Burkitt Lymphoma, and Gastrectomy.

    Experienced in Triple-Negative Breast Cancer

    Mitsunori Kirihata
    Experienced in Triple-Negative Breast Cancer

    Mitsunori Kirihata
    Sakai, JP 

    Mitsunori Kirihata practices practicing medicine in Sakai, Japan. Kirihata is rated as an Experienced expert by MediFind in the treatment of Triple-Negative Breast Cancer. Their clinical expertise encompasses Clear Cell Sarcoma, Glioma, Gliomatosis Cerebri, and Brain Tumor.

    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 21

    Last Updated: 04/28/2026

    What is the definition of Triple-Negative Breast Cancer?

    Triple-negative breast cancer (TNBC), a subtype of breast cancer, is a rare, malignant breast disease that lacks receptors for the hormones estrogen and progesterone and the human epidermal growth factor (HER2) protein usually found in other breast cancers. An aggressive cancer, triple-negative breast cancer grows and spreads more quickly than other types of invasive breast cancer. Triple-negative breast cancer is also more likely to reoccur and has a worse outcome (prognosis) than other breast cancers. Triple-negative breast cancer accounts for 10-15% of all breast cancers and is more common in women under the age of 40 who are African American or Hispanic, and who carry the BRCA1 gene mutation. Seventy percent of breast cancers in individuals with a BRCA gene mutation are triple-negative. Triple-negative breast cancer is classified in the following stages: Stage 0 – Ductal cancer in situ (DCIS), which is a non-invasive breast cancer. The cancer cells are still located in a breast duct and have not spread. Stage 1A – The breast cancer tumor is 2 centimeters or smaller and has not spread. Stage 1B – The tumor is 2 centimeters or smaller (or undetectable) with microscopic spread (micrometastases) into one-to-three axillary (underarm) lymph nodes. The metastasis is more than .2 millimeters but less than 2 millimeters and has not spread to other parts of the body. Stage IIA – One of the following has occurred, and the cancer has not spread beyond the lymph nodes: 1) The tumor is 2 centimeters (or undetectable) and has spread to one-to-three axillary (underarm) lymph nodes, with the cancer in the lymph nodes greater than 2 millimeters; 2) the tumor is 2 centimeters or smaller (or undetectable) and microscopic cancer is found in the internal mammary (breast) lymph nodes; 3) the tumor is 2 centimeters or smaller (or undetectable) and has spread to one-to-three axillary (underarm) lymph nodes and the internal mammary (breast) lymph nodes; or 4) the tumor is greater than 2 centimeters but less than 5 centimeters, but has not spread to lymph nodes. Stage IIB – One of the following has occurred, and the cancer has not spread beyond the lymph nodes: 1) the tumor is larger than 2 centimeters but less than 5 centimeters and has spread to one-to-three axillary (underarm) lymph nodes, and microscopic cancer is found in the internal mammary (breast) lymph nodes; or 2) the tumor is larger than 5 centimeters but has not invaded the chest wall or skin. Stage IIIA – One of the following has occurred, and the cancer has not spread beyond the lymph nodes: 1) the tumor is less than 5 centimeters (or undetectable) and has spread to four-to-nine axillary (underarm) lymph nodes; or 2) the tumor is greater than 5 centimeters, has not invaded the chest wall or skin, but has spread to one-to-nine axillary (underarm) lymph nodes or internal mammary (breast) nodes. Stage IIIB – The tumor has invaded the chest wall or skin, but hasn’t spread to other parts of the body, and one of the following has occurred: 1) the tumor has not spread to the lymph nodes; 2) the tumor has spread to one-to-three axillary (underarm) lymph nodes, and microscopic cancer has spread to the internal mammary (breast) nodes; or 3) the tumor has spread to four-to-nine axillary (underarm) lymph nodes, or it has caused swelling in the internal mammary (breast) nodes. Stage IIIC – The tumor is any size (or undetectable), had not spread beyond the lymph nodes, and one of the following has occurred: 1) the cancer has spread to 10 or more axillary (underarm) nodes; 2) the cancer has spread to the lymph nodes under the clavicle (collar bone); the cancer has spread to the lymph nodes above the collarbone; 3) the cancer has spread to axillary (underarm) lymph nodes; or 4) the cancer has spread to four or more axillary (underarm) lymph nodes, and microscopic cancer is found in internal mammary (breast) lymph nodes. Stage IV – The cancer is any size and may or may not have spread to close lymph nodes, but it has spread to organs such as the liver, lung, brain, or bones, or other distant lymph nodes.

    When should I see a Triple-Negative Breast Cancer doctor in Osaka, JP?

    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 Triple-Negative Breast Cancer doctor in Osaka, JP?

    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 Triple-Negative Breast Cancer doctor in Osaka, JP?

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

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    How does MediFind rank Triple-Negative Breast Cancer doctors in Osaka, JP?

    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 Triple-Negative Breast Cancer doctors in Osaka, JP?

    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 Triple-Negative Breast Cancer doctor in Osaka, JP?

    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 Triple-Negative Breast Cancer doctor search results page. 

    Why is it important to get a second opinion from a different Triple-Negative 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 Triple-Negative Breast Cancer doctor in Osaka, JP?

    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 Triple-Negative 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 Triple-Negative 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 Triple-Negative Breast Cancer doctors in Osaka, JP?

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

    Look for the filter feature on the left-side of the Triple-Negative 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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