The 20 Best Triple-Negative Breast Cancer Doctors Near Me in ontario, CA

Find the Top Triple-Negative Breast Cancer Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 12 doctor with experience in Triple-Negative Breast Cancer near ontario, CA. Of these, 9 are Experienced and 3 are Advanced.

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12 providers found
    Experienced in Triple-Negative Breast Cancer
    Experienced in Triple-Negative Breast Cancer
    Referral may be required

    Naveen Gupta, M.D.

    1100 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    909-949-2242
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Naveen Gupta is an Oncologist practicing medicine in Upland, California. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Paget Disease of the Breast, and Angiosarcoma.

    Advanced in Triple-Negative Breast Cancer

    Dr. Behnam Ebrahimi
    Internal Medicine
    Advanced in Triple-Negative Breast Cancer

    Dr. Behnam Ebrahimi
    Internal Medicine

    Oncology Physicians Network Of California PC

    1910 Royalty Dr, 
    Pomona, CA 
     (5.6 miles away)
    909-630-7342
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Behnam Ebrahimi is a primary care provider, practicing in Internal Medicine in Pomona, California. Dr. Ebrahimi is rated as an Advanced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 37 other conditions, according to our data. His clinical expertise encompasses Small Cell Lung Cancer (SCLC), Breast Cancer, Thrombocytopenia, and Lung Cancer. Dr. Ebrahimi is board certified in American Board Of Internal Medicine.

    Advanced in Triple-Negative Breast Cancer

    Dr. Lawrence D. Wagman
    Surgical Oncology
    Advanced in Triple-Negative Breast Cancer

    Dr. Lawrence D. Wagman
    Surgical Oncology
    Referral may be required

    Lawrence Wagman, M.D.

    1100 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    909-949-2242
    Languages Spoken:
    English
    See accepted insurances

    Lawrence Wagman is a Surgical Oncologist practicing medicine in Upland, California. Dr. Wagman is rated as an Advanced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 14 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Angiosarcoma, Lymphadenectomy, and Pancreatectomy.

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

    Dr. Natasha Garg
    Hematology | Oncology
    Advanced in Triple-Negative Breast Cancer

    Dr. Natasha Garg
    Hematology | Oncology
    Referral may be required

    City Of Hope Upland

    1100 San Bernardino Rd Ste 1100, 
    Upland, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Natasha Garg is a Hematologist and an Oncologist practicing medicine in Upland, California. Dr. Garg is rated as an Advanced provider by MediFind in the treatment of Triple-Negative Breast Cancer. She is also highly rated in 31 other conditions, according to our data. Her clinical expertise encompasses Inflammatory Breast Cancer, Angiosarcoma, Paget Disease of the Breast, and Colorectal Cancer.

    Experienced in Triple-Negative Breast Cancer
    Experienced in Triple-Negative Breast Cancer
    Referral may be required

    Neel Sagar Talwar, M.D.

    1100 San Bernardino Rd, 
    Upland, CA 
     (2.6 miles away)
    909-949-2242
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Neel Talwar is an Oncologist practicing medicine in Upland, California. Dr. Talwar is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Hodgkin Lymphoma, Familial Colorectal Cancer, Colorectal Cancer, and Angiosarcoma.

    Experienced in Triple-Negative Breast Cancer

    Dr. Swapnil Rajurkar
    Hematology | Oncology
    Experienced in Triple-Negative Breast Cancer

    Dr. Swapnil Rajurkar
    Hematology | Oncology
    Referral may be required

    City Of Hope Upland

    1100 San Bernardino Rd Ste 1100, 
    Upland, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Swapnil Rajurkar is a Hematologist and an Oncologist practicing medicine in Upland, California. Dr. Rajurkar is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 78 other conditions, according to our data. His clinical expertise encompasses Lynch Syndrome, Colorectal Cancer, Plasmacytoma, Familial Colorectal Cancer, and Bone Marrow Aspiration.

    Experienced in Triple-Negative Breast Cancer

    Dr. Sean Szeja
    Radiation Oncology
    Experienced in Triple-Negative Breast Cancer

    Dr. Sean Szeja
    Radiation Oncology
    Referral may be required

    City Of Hope Upland

    1100 San Bernardino Rd Ste 1100, 
    Upland, CA 
     (2.9 miles away)
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Sean Szeja is a Radiation Oncologist practicing medicine in Upland, California. Dr. Szeja is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 19 other conditions, according to our data. His clinical expertise encompasses Posterior Fossa Tumor, Pleuropulmonary Blastoma, Lung Cancer, and Hodgkin Lymphoma.

    Experienced in Triple-Negative Breast Cancer
    Experienced in Triple-Negative Breast Cancer
    Referral may be required

    City Of Hope Upland

    1100 San Bernardino Rd Ste 1100, 
    Upland, CA 
     (2.9 miles away)
    909-870-2875
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Shanmuga Pudunagar-Subbiah is an Oncologist practicing medicine in Upland, California. Dr. Pudunagar-Subbiah is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 39 other conditions, according to our data. His clinical expertise encompasses Inflammatory Breast Cancer, Paget Disease of the Breast, Thrombocytopenia, and Angiosarcoma.

    Experienced in Triple-Negative Breast Cancer

    Dr. Krupali K. Tejura
    Radiation Oncology
    Experienced in Triple-Negative Breast Cancer

    Dr. Krupali K. Tejura
    Radiation Oncology
    Referral may be required

    Fortress Diagnostics Testing Inc

    1801 Excise Ave Ste 108, 
    Ontario, CA 
     (3.8 miles away)
    909-390-3400
    Languages Spoken:
    English
    See accepted insurances

    Krupali Tejura is a Radiation Oncologist practicing medicine in Ontario, California. Dr. Tejura is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Posterior Fossa Tumor, Primitive Neuroectodermal Tumor (PNET), Metastatic Brain Tumor, and Breast Cancer.

    Experienced in Triple-Negative Breast Cancer

    Dr. Lori L. Vanyo
    General Surgery
    Experienced in Triple-Negative Breast Cancer

    Dr. Lori L. Vanyo
    General Surgery
    Referral may be required

    Inland Valley Hematology Oncology Associates

    1910 Royalty Dr, 
    Pomona, CA 
     (5.6 miles away)
    909-766-1600
    Languages Spoken:
    English
    See accepted insurances

    Lori Vanyo is a General Surgeon practicing medicine in Pomona, California. Dr. Vanyo is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Inflammatory Breast Cancer.

    Experienced in Triple-Negative Breast Cancer

    Dr. Gregory A. Gilmore
    Hematology | Oncology
    Experienced in Triple-Negative Breast Cancer

    Dr. Gregory A. Gilmore
    Hematology | Oncology
    Referral may be required

    The Oncology Institute Of Hope And Innovation

    900 S Main St, Ste 204, 
    Corona, CA 
     (14.1 miles away)
    951-372-2400
    Languages Spoken:
    English
    See accepted insurances
    Offers Telehealth

    Gregory Gilmore is a Hematologist and an Oncologist practicing medicine in Corona, California. Dr. Gilmore is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. He is also highly rated in 16 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Colorectal Cancer, Paget Disease of the Breast, and Breast Cancer. Dr. Gilmore is board certified in Internal Medicine (Sub: Medical Oncology), Internal Medicine (Sub: Hematology), and Internal Medicine.

    Experienced in Triple-Negative Breast Cancer

    Dr. Huong Q. Nguyen
    Internal Medicine
    Experienced in Triple-Negative Breast Cancer

    Dr. Huong Q. Nguyen
    Internal Medicine

    Hemlata Parekh M D A Professional Corporation

    341 Magnolia Ave Ste 201, 
    Corona, CA 
     (14.3 miles away)
    951-735-6969
    Languages Spoken:
    English
    See accepted insurances
    Accepting New Patients
    Offers Telehealth

    Huong Nguyen is a primary care provider, practicing in Internal Medicine in Corona, California. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Triple-Negative Breast Cancer. Her clinical expertise encompasses Togaviridae Disease and Triple-Negative Breast Cancer. Dr. Nguyen is currently accepting new patients.

    Showing 1-12 of 12

    Last Updated: 09/26/2026

    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 near ontario, CA?

    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 near ontario, CA?

    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 near ontario, CA?

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

    Triple-Negative Breast Cancer doctor near New York, NY
    Triple-Negative Breast Cancer doctor near Los Angeles, CA
    Triple-Negative Breast Cancer doctor near Chicago, IL
    Triple-Negative Breast Cancer doctor near Houston, TX
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    Triple-Negative Breast Cancer doctor near Philadelphia, PA
    Triple-Negative Breast Cancer doctor near Atlanta, GA
    Triple-Negative Breast Cancer doctor near Boston, MA
    Triple-Negative Breast Cancer doctor near Dallas, TX
    Triple-Negative Breast Cancer doctor near San Jose, CA

    How does MediFind rank Triple-Negative Breast Cancer doctors near ontario, CA?

    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 near ontario, CA?

    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 near ontario, CA?

    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 near ontario, CA?

    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 near ontario, CA?

    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 

    Read more about our Content Policy. 

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