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    Last Updated: 01/09/2026

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    MediFind found 775 doctor with experience in HER-2 Positive Breast Cancer near California, US. Of these, 607 are Experienced, 159 are Advanced, 6 are Distinguished and 1 are Elite.

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    775 providers found
      Hope S. Rugo
      Elite in HER-2 Positive Breast Cancer
      Hematology | Oncology
      Elite in HER-2 Positive Breast Cancer
      Hematology | Oncology

      Regents Of The University Of California

      400 Parnassus Ave, 
      San Francisco, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Hope Rugo is a Hematologist and an Oncologist in San Francisco, California. Dr. Rugo is rated as an Elite provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Triple-Negative Breast Cancer, Agranulocytosis, Bone Marrow Aspiration, and Hormone Replacement Therapy (HRT).

      Joanne E. Mortimer
      Distinguished in HER-2 Positive Breast Cancer
      Distinguished in HER-2 Positive Breast Cancer

      City Of Hope Medical Foundation

      1500 E Duarte Rd, 
      Duarte, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Joanne Mortimer is an Oncologist in Duarte, California. Dr. Mortimer is rated as a Distinguished provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Triple-Negative Breast Cancer, Inflammatory Breast Cancer, HER-2 Positive Breast Cancer, and Colonoscopy.

      Distinguished in HER-2 Positive Breast Cancer
      Distinguished in HER-2 Positive Breast Cancer
      1500 Duarte Rd, 
      Duarte, CA 
      Languages Spoken:
      English

      James Waisman is an Oncologist in Duarte, California. Dr. Waisman is rated as a Distinguished provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, Inflammatory Breast Cancer, Breast Cancer in Men, and HER-2 Positive Breast Cancer.

      Learn about our expert tiers
      Advanced in HER-2 Positive Breast Cancer
      Surgical Oncology | General Surgery
      Advanced in HER-2 Positive Breast Cancer
      Surgical Oncology | General Surgery

      City Of Hope Medical Foundation

      209 Fair Oaks Ave, 
      South Pasadena, CA 
      Experience:
      18+ years
      Languages Spoken:
      English
      Offers Telehealth

      Veronica Jones is a Surgical Oncologist and a General Surgeon in South Pasadena, California. Dr. Jones has been practicing medicine for over 18 years and is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Angiosarcoma, Mastectomy, and Lymphadenectomy.

      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology | Oncology
      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      209 Fair Oaks Ave, 
      South Pasadena, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Christina Yeon is a Hematologist Oncology specialist and a Hematologist in South Pasadena, California. Dr. Yeon is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Inflammatory Breast Cancer.

      Advanced in HER-2 Positive Breast Cancer
      General Surgery
      Advanced in HER-2 Positive Breast Cancer
      General Surgery

      City Of Hope Medical Foundation

      209 Fair Oaks Ave, 
      South Pasadena, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Isaac Paz is a General Surgeon in South Pasadena, California. Dr. Paz is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Stomach Cancer, Breast Cancer, Familial Colorectal Cancer, Small Bowel Resection, and Gastrectomy.

      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology | Hematology Oncology
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology | Hematology Oncology

      USC Care Medical Group Inc

      1520 San Pablo St, Fl 4, 
      Los Angeles, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Daphne Stewart is an Oncologist and a Hematologist in Los Angeles, California. Dr. Stewart is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Ovarian Cancer, Breast Cancer, Ovarian Carcinosarcoma, Virilizing Ovarian Tumor, and Gastrostomy.

      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology | Oncology
      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      1100 San Bernardino Rd, Suite 1100, 
      Upland, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Naveen Gupta is a Hematologist Oncology specialist and a Hematologist in Upland, California. Dr. Gupta is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Familial Colorectal Cancer, Colorectal Cancer, Paget Disease of the Breast, Angiosarcoma, and Bone Marrow Aspiration.

      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology
      Advanced in HER-2 Positive Breast Cancer
      Hematology Oncology
      1601 Island View Dr, 
      Seal Beach, CA 
      Languages Spoken:
      English

      George Somlo is a Hematologist Oncology provider in Seal Beach, California. Dr. Somlo is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, Inflammatory Breast Cancer, Triple-Negative Breast Cancer, Multiple Myeloma, and Bone Marrow Transplant.

      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology Oncology
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology Oncology
      5451 Walnut Ave, 
      Chino, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Behnam Ebrahimi is an Oncologist and a Hematologist Oncology provider in Chino, California. Dr. Ebrahimi is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Inflammatory Breast Cancer, Small Cell Lung Cancer (SCLC), Angiosarcoma, and Paget Disease of the Breast.

      Steven T. Rosen
      Experienced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology
      Experienced in HER-2 Positive Breast Cancer
      Hematology Oncology | Hematology

      City Of Hope Medical Foundation

      209 Fair Oaks Ave, 
      South Pasadena, CA 
      Languages Spoken:
      English

      Steven Rosen is a Hematologist Oncology specialist and a Hematologist in South Pasadena, California. Dr. Rosen is rated as an Experienced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Cutaneous T-Cell Lymphoma (CTCL), T-Cell Lymphoma, Non-Hodgkin Lymphoma, Bone Marrow Transplant, and Bone Marrow Aspiration.

      Jyoti S. Mayadev
      Experienced in HER-2 Positive Breast Cancer
      Radiation Oncology
      Experienced in HER-2 Positive Breast Cancer
      Radiation Oncology

      Regents Of The University Of California

      3855 Health Sciences Dr, 
      La Jolla, CA 
      Languages Spoken:
      English

      Jyoti Mayadev is a Radiation Oncologist in La Jolla, California. Dr. Mayadev is rated as an Experienced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Cervical Cancer, Vulvar Cancer, Neuroendocrine Carcinoma of the Cervix, Endometrial Cancer, and Lymphadenectomy.

      Victoria L. Seewaldt
      Experienced in HER-2 Positive Breast Cancer
      Experienced in HER-2 Positive Breast Cancer

      City Of Hope Medical Foundation

      209 Fair Oaks Ave, 
      South Pasadena, CA 
      Languages Spoken:
      English

      Victoria Seewaldt is an Oncologist in South Pasadena, California. Dr. Seewaldt is rated as an Experienced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Triple-Negative Breast Cancer, and HER-2 Positive Breast Cancer.

      Ram N. Lalchandani
      Advanced in HER-2 Positive Breast Cancer
      Hematology | Oncology
      Advanced in HER-2 Positive Breast Cancer
      Hematology | Oncology

      Sierra Hematology & Oncology

      1580 Creekside Dr Ste 230, 
      Folsom, CA 
      Languages Spoken:
      English, Hindi, Sindhi
      Accepting New Patients
      Offers Telehealth

      Our group is dedicated to care of patients with hematology and oncology disorders. We strive to provide excellent, courteous, and timely service. Dr. Lalchandani is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Familial Colorectal Cancer, Paget Disease of the Breast, Breast Cancer, Anal Cancer, and Bone Marrow Aspiration.

      Nubar P. Boghossian
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology

      Los Angeles Cancer Network

      222 W Eulalia St, Ste 100C, 
      Glendale, CA 
      Languages Spoken:
      English, Arabic, Armenian, French, Spanish, Swedish
      Accepting New Patients
      Offers Telehealth

      The mission of The Los Angeles Cancer Network is to provide compassionate individualized treatment using the most recent proven advances in cancer care as well as education and support to our patients and their families. It is also our mission to participate in important clinical research, early detection and innovative treatment. We are proud to be at the forefront of cancer research with our associates at Southwest Oncology Group and Kenmar Research Institute. I am privileged to be able to take care of our cancer patients. Dr. Boghossian is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Paget Disease of the Breast, Breast Cancer, Agranulocytosis, and Chronic Familial Neutropenia.

      Justin Voog
      Advanced in HER-2 Positive Breast Cancer
      Radiation Oncology
      Advanced in HER-2 Positive Breast Cancer
      Radiation Oncology

      Ridley-Tree Cancer Center

      540 West Pueblo Street, 
      Santa Barbara, CA 
      Languages Spoken:
      English
      Offers Telehealth

      Justin Voog is a Radiation Oncologist in Santa Barbara, California. Dr. Voog is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Prostate Cancer, Familial Prostate Cancer, Endometrial Stromal Sarcoma, and HER-2 Positive Breast Cancer.

      Tanya Gupta
      Advanced in HER-2 Positive Breast Cancer
      Advanced in HER-2 Positive Breast Cancer

      Sunnyvale Center (301)

      301 Old San Francisco Road, 
      Sunnyvale, CA 
      Languages Spoken:
      English
      Accepting New Patients
      Offers Telehealth

      Tanya Gupta is an Oncologist in Sunnyvale, California. Dr. Gupta is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Inflammatory Breast Cancer, Paget Disease of the Breast, and Angiosarcoma. Dr. Gupta is currently accepting new patients.

      Sungwon R. Kyung
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology
      Advanced in HER-2 Positive Breast Cancer
      Oncology | Hematology

      Los Angeles Cancer Network

      1245 Wilshire Blvd, Ste 303, 
      Los Angeles, CA 
      Languages Spoken:
      English, Korean, Spanish
      Accepting New Patients
      Offers Telehealth

      Sungwon Kyung is a Hematologist and an Oncologist in Los Angeles, California. Dr. Kyung is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Febrile Neutropenia, Chronic Familial Neutropenia, Agranulocytosis, and Thrombocytopenia. Dr. Kyung is currently accepting new patients.

      Linas J. Kazlauskas
      Advanced in HER-2 Positive Breast Cancer
      Radiology | Radiation Oncology
      Advanced in HER-2 Positive Breast Cancer
      Radiology | Radiation Oncology

      Linas J. Kazlauskas, MD Private Practice

      720 E Colorado St, 
      Glendale, CA 
      Languages Spoken:
      English
      Accepting New Patients

      Dr. Linas Kazlauskas is a board certified Radiation Oncologist. Vantage Oncology provides quality, personalized cancer care in a community setting.Linas Kazlauskas, MD, joined Valley Radiotherapy Associates in 2001 and is a board certified Radiation Oncologist. Dr. Kazlauskas practices at and is the medical director of Glendale Radiation Therapy Center in Glendale, CA. A Chicago-area native, he received a Bachelor of Science, Honors degree in Physics from Loyola University Chicago where he received both departmental and collegiate honors, and his Doctor of Medicine degree from Rush Medical College. Dr. Kazlauskas completed his internshi. Dr. Kazlauskas is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His top areas of expertise are Breast Cancer, HER-2 Positive Breast Cancer, Prostate Cancer, and Familial Prostate Cancer.

      Janice K. Ryu
      Advanced in HER-2 Positive Breast Cancer
      Radiation Oncology
      Advanced in HER-2 Positive Breast Cancer
      Radiation Oncology

      Sutter Medical Center | Anderson Lucchetti Women's & Children's Center

      2825 Capitol Avenue, 
      Sacramento, CA 
      Languages Spoken:
      English
      Accepting New Patients

      Janice Ryu is a Radiation Oncologist in Sacramento, California. Dr. Ryu is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. Her top areas of expertise are Breast Cancer, Angiosarcoma, HER-2 Positive Breast Cancer, and Metastatic Brain Tumor. Dr. Ryu is currently accepting new patients.

      Showing 1-20 of 775

      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 California, US?

      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 California, US?

      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 does MediFind rank HER-2 Positive Breast Cancer doctors in California, US?

      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 California, US?

      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 California, US?

      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 California, US?

      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 California, US?

      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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