The 20 Best HER-2 Positive Breast Cancer Doctors in Ireland

Find the Top HER-2 Positive Breast Cancer Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 47 doctor with experience in HER-2 Positive Breast Cancer near Ireland. Of these, 33 are Experienced, 7 are Distinguished, 6 are Advanced and 1 are Elite.

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47 providers found
    Elite in HER-2 Positive Breast Cancer

    Denis M. Collins
    Elite in HER-2 Positive Breast Cancer

    Denis M. Collins
    Dublin, L, IE 

    Denis Collins practices practicing medicine in Dublin, Ireland. Mr. Collins is rated as an Elite expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses HER-2 Positive Breast Cancer, Breast Cancer, Triple-Negative Breast Cancer, and Melanoma.

    Distinguished in HER-2 Positive Breast Cancer

    Naomi M. Walsh
    Distinguished in HER-2 Positive Breast Cancer

    Naomi M. Walsh
    Dublin, L, IE 

    Naomi Walsh practices practicing medicine in Dublin, Ireland. Ms. Walsh is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses HER-2 Positive Breast Cancer, Pancreatic Cancer, Breast Cancer, and Melanoma.

    Distinguished in HER-2 Positive Breast Cancer

    Alex J. Eustace
    Distinguished in HER-2 Positive Breast Cancer

    Alex J. Eustace
    Dublin, L, IE 

    Alex Eustace practices practicing medicine in Dublin, Ireland. Mr. Eustace is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Breast Cancer, and PIK3CA-Related Overgrowth Spectrum.

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

    John P. Crown
    Distinguished in HER-2 Positive Breast Cancer

    John P. Crown

    St James Hospital

    Dublin, L, IE 

    John Crown practices practicing medicine in Dublin, Ireland. Mr. Crown is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses Triple-Negative Breast Cancer, Breast Cancer, HER-2 Positive Breast Cancer, Mastectomy, and Tissue Biopsy.

    Distinguished in HER-2 Positive Breast Cancer

    Norma O'donovan
    Distinguished in HER-2 Positive Breast Cancer

    Norma O'donovan
    Dublin, L, IE 

    Norma O'donovan practices practicing medicine in Dublin, Ireland. Ms. O'donovan is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses HER-2 Positive Breast Cancer, Breast Cancer, Triple-Negative Breast Cancer, and PIK3CA-Related Overgrowth Spectrum.

    Distinguished in HER-2 Positive Breast Cancer

    Sinead M. Toomey
    Distinguished in HER-2 Positive Breast Cancer

    Sinead M. Toomey
    Dublin, L, IE 

    Sinead Toomey practices practicing medicine in Dublin, Ireland. Ms. Toomey is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses PIK3CA-Related Overgrowth Spectrum, HER-2 Positive Breast Cancer, Breast Cancer, Colorectal Cancer, and Tissue Biopsy.

    Distinguished in HER-2 Positive Breast Cancer

    Alexandra Canonici
    Distinguished in HER-2 Positive Breast Cancer

    Alexandra Canonici
    Dublin, L, IE 

    Alexandra Canonici practices practicing medicine in Dublin, Ireland. Ms. Canonici is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Triple-Negative Breast Cancer, HER-2 Positive Breast Cancer, and Breast Cancer.

    Distinguished in HER-2 Positive Breast Cancer

    Stephen F. Madden
    Distinguished in HER-2 Positive Breast Cancer

    Stephen F. Madden
    Dublin, L, IE 

    Stephen Madden practices practicing medicine in Dublin, Ireland. Mr. Madden is rated as a Distinguished expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, PIK3CA-Related Overgrowth Spectrum, and Triple-Negative Breast Cancer.

    Advanced in HER-2 Positive Breast Cancer

    Neil T. Conlon
    Advanced in HER-2 Positive Breast Cancer

    Neil T. Conlon
    Dublin, L, IE 

    Neil Conlon practices practicing medicine in Dublin, Ireland. Mr. Conlon is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 3 other conditions, according to our data. His clinical expertise encompasses HER-2 Positive Breast Cancer, Triple-Negative Breast Cancer, Breast Cancer, and Pancreatic Cancer.

    Advanced in HER-2 Positive Breast Cancer

    Giuseppe Gullo
    Advanced in HER-2 Positive Breast Cancer

    Giuseppe Gullo

    St Vincent's University Hospital

    Dublin, L, IE 

    Giuseppe Gullo practices practicing medicine in Dublin, Ireland. Mr. Gullo is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Metastatic Uveal Melanoma, Non-Small Cell Lung Cancer (NSCLC), Melanoma of the Eye, and Mastectomy.

    Advanced in HER-2 Positive Breast Cancer

    Brigid C. Browne
    Advanced in HER-2 Positive Breast Cancer

    Brigid C. Browne
    Dublin, L, IE 

    Brigid Browne practices practicing medicine in Dublin, Ireland. Ms. Browne is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 1 other condition, according to our data. Her clinical expertise encompasses HER-2 Positive Breast Cancer and Breast Cancer.

    Advanced in HER-2 Positive Breast Cancer

    Janice M. Walshe
    Advanced in HER-2 Positive Breast Cancer

    Janice M. Walshe

    St James Hospital

    Dublin, L, IE 

    Janice Walshe practices practicing medicine in Dublin, Ireland. Ms. Walshe is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, HER-2 Positive Breast Cancer, Autosomal Recessive Hypotrichosis, Menopause, and Mastectomy.

    Advanced in HER-2 Positive Breast Cancer

    Katherine M. Sheehan
    Advanced in HER-2 Positive Breast Cancer

    Katherine M. Sheehan
    123 St. Stephen's Green, 
    Stephen's Green, L, IE 

    Katherine Sheehan practices practicing medicine in Stephen's Green, Ireland. Ms. Sheehan is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 2 other conditions, according to our data. Her clinical expertise encompasses HER-2 Positive Breast Cancer, Breast Cancer, PIK3CA-Related Overgrowth Spectrum, Colorectal Cancer, and Lithotripsy.

    Advanced in HER-2 Positive Breast Cancer

    Michael J. Kerin
    Advanced in HER-2 Positive Breast Cancer

    Michael J. Kerin
    University Road, 
    Gaillimh, C, IE 

    Michael Kerin practices practicing medicine in Gaillimh, Ireland. Mr. Kerin is rated as an Advanced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 4 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Triple-Negative Breast Cancer, HER-2 Positive Breast Cancer, Mastectomy, and Gallbladder Removal.

    Experienced in HER-2 Positive Breast Cancer

    William C. Wijns
    Experienced in HER-2 Positive Breast Cancer

    William C. Wijns
    University Road, H91 TK33, 
    Gaillimh, C, IE 

    William Wijns practices practicing medicine in Gaillimh, Ireland. Mr. Wijns is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 12 other conditions, according to our data. His clinical expertise encompasses Coronary Heart Disease, Stable Angina, Angina, Percutaneous Coronary Intervention (PCI), and Angioplasty.

    Experienced in HER-2 Positive Breast Cancer

    Paddy Gillespie
    Experienced in HER-2 Positive Breast Cancer

    Paddy Gillespie
    University Road, 
    Gaillimh, C, IE 

    Paddy Gillespie practices practicing medicine in Gaillimh, Ireland. Mr. Gillespie is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 1 other condition, according to our data. His clinical expertise encompasses Gestational Diabetes, Newborn Low Blood Sugar, High Blood Pressure in Infants, and Type 1 Diabetes (T1D).

    Experienced in HER-2 Positive Breast Cancer

    Joanna Fay
    Experienced in HER-2 Positive Breast Cancer

    Joanna Fay
    Dublin, L, IE 

    Joanna Fay practices practicing medicine in Dublin, Ireland. Ms. Fay is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses PIK3CA-Related Overgrowth Spectrum, Breast Cancer, HER-2 Positive Breast Cancer, Colorectal Cancer, and Lithotripsy.

    Experienced in HER-2 Positive Breast Cancer

    David W. Fennelly
    Experienced in HER-2 Positive Breast Cancer

    David W. Fennelly
    St. Vincent's University Hospital, Elm Park, Dublin 4, 
    Dublin, L, IE 

    David Fennelly practices practicing medicine in Dublin, Ireland. Mr. Fennelly is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Breast Cancer, HER-2 Positive Breast Cancer, and Autosomal Recessive Hypotrichosis.

    Experienced in HER-2 Positive Breast Cancer

    Darran P. O'connor
    Experienced in HER-2 Positive Breast Cancer

    Darran P. O'connor
    Dublin, L, IE 

    Darran O'connor practices practicing medicine in Dublin, Ireland. Mr. O'connor is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Colorectal Cancer, HER-2 Positive Breast Cancer, and Triple-Negative Breast Cancer.

    Experienced in HER-2 Positive Breast Cancer

    Cecily M. Quinn
    Experienced in HER-2 Positive Breast Cancer

    Cecily M. Quinn
    St Vincent's Hospital, Elm Park, 
    Dublin, L, IE 

    Cecily Quinn practices practicing medicine in Dublin, Ireland. Ms. Quinn is rated as an Experienced expert by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 3 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Fibroadenoma, Triple-Negative Breast Cancer, Giant Mammary Hamartoma, 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 47

    Last Updated: 04/28/2026

    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 Ireland?

    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 Ireland?

    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 Ireland?

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

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    How does MediFind rank HER-2 Positive Breast Cancer doctors in Ireland?

    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 Ireland?

    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 Ireland?

    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 Ireland?

    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 Ireland?

    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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