The 20 Best HER-2 Positive Breast Cancer Doctors Near Me in Boulder, CO

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

Last Updated: 04/28/2026

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MediFind found 16 doctor with experience in HER-2 Positive Breast Cancer near Boulder, CO. Of these, 12 are Advanced and 4 are Experienced.

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16 providers found
    Advanced in HER-2 Positive Breast Cancer
    Radiation Oncology
    Advanced in HER-2 Positive Breast Cancer
    Radiation Oncology

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Patrick Richard is a Radiation Oncologist practicing medicine in Boulder, Colorado. He has been practicing medicine for over 10 years. Dr. Richard is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 22 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Familial Prostate Cancer, HER-2 Positive Breast Cancer, and Prostate Cancer. Dr. Richard is board certified in American Board Of Radiology. Dr. Richard is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Experience:
    10+ years
    Languages Spoken:
    English
    Accepting New Patients

    Dario Pasalic is a Radiation Oncologist practicing medicine in Boulder, Colorado. He has been practicing medicine for over 10 years. Dr. Pasalic is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 6 other conditions, according to our data. His clinical expertise encompasses HER-2 Positive Breast Cancer, Breast Cancer, Prostate Cancer, Orchiectomy, and Gastrostomy. Dr. Pasalic is board certified in American Board Of Radiology. Dr. Pasalic is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Mark Sitarik is an Oncologist practicing medicine in Boulder, Colorado. Dr. Sitarik is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 62 other conditions, according to our data. His clinical expertise encompasses Von Willebrand Disease (VWD), Heyde Syndrome, Paget Disease of the Breast, and Breast Cancer. Dr. Sitarik is board certified in American Board Of Internal Medicine. Dr. Sitarik is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Austin Poole is an Oncologist practicing medicine in Boulder, Colorado. Dr. Poole is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 40 other conditions, according to our data. His clinical expertise encompasses Prostate Cancer, Colorectal Cancer, Familial Colorectal Cancer, and Familial Prostate Cancer. Dr. Poole is board certified in American Board Of Internal Medicine. Dr. Poole is currently accepting new patients.

    Advanced in HER-2 Positive Breast Cancer
    Internal Medicine
    Advanced in HER-2 Positive Breast Cancer
    Internal Medicine

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Sydney Brehany is an Internal Medicine provider practicing medicine in Boulder, Colorado. Dr. Brehany is rated as an Advanced provider 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, Paget Disease of the Breast, Breast Cancer, and Triple-Negative Breast Cancer. Dr. Brehany is board certified in American Board Of Internal Medicine. Dr. Brehany is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Leslie Busby is a Hematologist practicing medicine in Boulder, Colorado. Dr. Busby is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 56 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Adult Soft Tissue Sarcoma, Bone Tumor, Thrombectomy, and Bone Marrow Aspiration. Dr. Busby is board certified in American Board Of Internal Medicine. Dr. Busby is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Gregory Britt is a Hematologist practicing medicine in Boulder, Colorado. Dr. Britt is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 42 other conditions, according to our data. His clinical expertise encompasses Hodgkin Lymphoma, Acute Mountain Sickness, Adult Soft Tissue Sarcoma, and Childhood Iron Deficiency Anemia. Dr. Britt is board certified in American Board Of Internal Medicine. Dr. Britt is currently accepting new patients.

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

    Rocky Mountain Cancer Centers LLP

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    David Andorsky is an Oncologist practicing medicine in Boulder, Colorado. Dr. Andorsky is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. He is also highly rated in 65 other conditions, according to our data. His clinical expertise encompasses Follicular Lymphoma, Chronic B-Cell Leukemia (CBCL), Chronic Lymphocytic Leukemia (CLL), and Richter Syndrome. Dr. Andorsky is board certified in Internal Medicine-American Board Of Internal Medicine (ABIM), Medical Oncology-American Board Of Internal Medicine (ABIM), and Hematology-American Board Of Internal Medicine (ABIM). Dr. Andorsky is currently accepting new patients.

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

    Rocky Mountain Cancer Centers LLP

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Lori Jensen is an Oncologist practicing medicine in Boulder, Colorado. Dr. Jensen is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 21 other conditions, according to our data. Her clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Small Lymphocytic Lymphoma (SLL), and Inflammatory Breast Cancer. Dr. Jensen is board certified in Internal Medicine-American Board Of Internal Medicine (ABIM). Dr. Jensen is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Jenny Fox is an Oncologist practicing medicine in Boulder, Colorado. Dr. Fox is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. She is also highly rated in 30 other conditions, according to our data. Her clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, HER-2 Positive Breast Cancer, and Familial Prostate Cancer. Dr. Fox is board certified in American Board Of Internal Medicine. Dr. Fox is currently accepting new patients.

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

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
     (2.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Kathleen Monahan is an Oncologist practicing medicine in Boulder, Colorado. Dr. Monahan is rated as an Advanced provider 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 HER-2 Positive Breast Cancer, Paget Disease of the Breast, Breast Cancer, and Triple-Negative Breast Cancer. Dr. Monahan is board certified in American Board Of Internal Medicine. Dr. Monahan is currently accepting new patients.

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

    Flatiron Internal Medicine

    90 Health Park Dr Ste 340, 
    Louisville, CO 
     (7.7 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients

    Katrina Schmidt is a General Surgeon practicing medicine in Louisville, Colorado. She has been practicing medicine for over 17 years. Dr. Schmidt is rated as an Advanced provider by MediFind in the treatment of HER-2 Positive 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, Intraductal Papilloma, Giant Mammary Hamartoma, and Lymphadenectomy. Dr. Schmidt is board certified in American Board Of Internal Medicine. Dr. Schmidt is currently accepting new patients.

    Experienced in HER-2 Positive Breast Cancer
    Radiation Oncology
    Experienced in HER-2 Positive Breast Cancer
    Radiation Oncology

    Good Samaritan Medical Center - Cancer Centers Of Colorado

    340 Exempla Circle, Radiation Oncology, Floor 1, 
    Lafayette, CO 
     (9.3 miles away)
    Experience:
    42+ years
    Languages Spoken:
    English
    Offers Telehealth

    Changhu Chen is a Radiation Oncologist practicing medicine in Lafayette, Colorado. He has been practicing medicine for over 42 years. Dr. Chen is rated as an Experienced provider by MediFind in the treatment of HER-2 Positive Breast Cancer. His clinical expertise encompasses Lung Cancer, Pleuropulmonary Blastoma, Brain Tumor, and Prostate Cancer. Dr. Chen is board certified in American Board Of Radiology.

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

    Lafayette Clinic - General And Trauma Surgery

    300 Exempla Circle, Suite 400, 
    Lafayette, CO 
     (10.5 miles away)
    Experience:
    23+ years
    Languages Spoken:
    English
    Accepting New Patients

    Dr. Knudson received her medical degree from University of Colorado School of Medicine where she was active in AOA, the medical honor society. She is board certified in general surgery. She completed a five-year surgical residency at University of Colorado. Dr. Knudson's philosophy of care focuses on the accessibility of individualized treatment so that all of her patients understand every step of their health and healing journey, from diagnosis to recovery. She has a special interest in treating breast disease,bringing sensitivity and expertise to develop a plan that's right for her patients and their families.Dr. Knudson performs routine general surgery as well. She knows that a surgery that may seem routine or minor is one of the biggest things that will happen to her patient in a year. It will make the Christmas card, she says. She takes this impact to heart when working with her patients.Dr. Knudson enjoys outdoor photography, kayaking and spending time outdoors. Dr. Knudson is rated as an Experienced provider 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 Paget Disease of the Breast, Inflammatory Breast Cancer, Breast Cancer, and Ogilvie Syndrome. Dr. Knudson is board certified in American Board Of Surgery. Dr. Knudson is currently accepting new patients.

    Experienced in HER-2 Positive Breast Cancer
    Radiation Oncology
    Experienced in HER-2 Positive Breast Cancer
    Radiation Oncology

    Good Samaritan Hospital

    340 Exempla Cir, 
    Lafayette, CO 
     (10.5 miles away)
    Languages Spoken:
    English

    Andrew Knight is a Radiation Oncologist practicing medicine in Lafayette, Colorado. Dr. Knight is rated as an Experienced provider 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 Breast Cancer, Pseudobulbar Affect, Prostate Cancer, and Familial Prostate Cancer.

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

    Lovie D. Bey,MD

    2030 Mountain View Ave, 
    Longmont, CO 
     (13.6 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Lovie Bey is a Hematologist and an Oncologist practicing medicine in Longmont, Colorado. Dr. Bey is rated as an Experienced provider 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 Paget Disease of the Breast, Colorectal Cancer, Breast Cancer, and Familial Colorectal Cancer. Dr. Bey is currently accepting new patients.

    Showing 1-16 of 16

    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 near Boulder, CO?

    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 near Boulder, CO?

    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 near Boulder, CO?

    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 near Boulder, CO?

    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 near Boulder, CO?

    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 near Boulder, CO?

    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 near Boulder, CO?

    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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