
Victoria Brennan, MBBch, BAO
Radiation Oncologist
Titles
Assistant Attending Radiation Oncologist
Clinical Expertise
Prostate Cancer; Brachytherapy; Oligometastatic Disease; Palliative Radiation; SBRT
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New Patient Appointments
Scheduling a visit is easy. Click below or call us to get started.
- 646-497-9068 Prostate
- 212-639-8904 All Others
Dr. Brennan accepts the following list of insurance providers. Select your insurance provider to see more details.
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS, Transplant
Payor Type:
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): POS, EPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type:
In Network Coverage Type(s): PPO, HMO
Payor Type:
In Network Coverage Type(s): PPO, HMO, DSN
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): HMO, EPO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type:
In Network Coverage Type(s): HMO
Payor Type:
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO, HMO, PPO, POS
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): HMO
Payor Type:
In Network Coverage Type(s): HMO, PPO
Payor Type: Commercial
In Network Coverage Type(s): PPO EPO
Payor Type: Commercial
In Network Coverage Type(s): HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type: Commercial
In Network Coverage Type(s): EPO
Payor Type:
In Network Coverage Type(s): PPO, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, EPO
Payor Type:
In Network Coverage Type(s): Federal Government
Payor Type: Commercial
In Network Coverage Type(s): Supplemental
Payor Type: Commercial
In Network Coverage Type(s): PPO/OAP
Payor Type: Other
In Network Coverage Type(s): PPO, POS, EPO, HMO
Payor Type:
In Network Coverage Type(s): TBD
Payor Type: Commercial
In Network Coverage Type(s): HMO/EPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, EPO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Medicaid/Managed Medicaid
In Network Coverage Type(s): State Government
Payor Type: Commercial
In Network Coverage Type(s): PPO, HMO
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS
Payor Type: Commercial
In Network Coverage Type(s): PPO, POS, HMO
Payor Type: Commercial
In Network Coverage Type(s): State Government
Contact and Location
- 212-639-8904 Office Phone
- Speaks English

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offer many services, including screening, chemotherapy, and medical testing.
See all locationsAbout Me
Education
Medical Degree, MBBCh, BAO, University College Cork, Ireland
Fellowships
Brachytherapy - Memorial Sloan Kettering Cancer Center; Supportive and Palliative Radiation Oncology - Harvard Radiation Oncology Program
Board Certifications
Internal Medicine (Ireland); Radiation Oncology (Ireland)
I am a radiation oncologist with expertise in brachytherapy and palliative radiation, as well as stereotactic body radiation therapy. This is an advanced radiation technique that provides ultra-precise delivery of high doses of radiation. I completed my residency training and board certifications in Ireland, followed by fellowship training at both Memorial Sloan Kettering and Dana-Farber Cancer Institute. I care for people with prostate cancer, as well as those with metastatic disease (cancer that has spread to other parts of the body), at Memorial Hospital in Manhattan.
I am committed to delivering exceptional and individualized care for patients. To do this, I prioritize excellent communication with my patients, resulting in optimal cancer treatment with minimal impact on their quality of life. I work closely with their entire care team, including their surgeon, medical oncologist, radiologist, and pathologist to ensure that we provide the treatment option most suited to their goals and needs.
It is a privilege to care for people with cancer at a challenging time in their lives. My goal is to ensure that they are well-informed and confident in the care they receive at every step of their treatment path.
My goal is to ensure that my patients are well-informed and confident in the care they receive at every step of their treatment path.
-Dr. Brennan
Colleagues
Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.
See all External Beam Radiotherapy Service, Manhattan doctors
Clinical Trials
- Clinical Trials Investigated by Dr. Brennan
- A Phase II Study of MRI-Guided High-Dose Radiation Therapy in Prostate Cancer

Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.
You may be able to participate in a clinical trial even if you are new to MSK. Search our online directory to find trial information and see more about who can participate.
Search clinical trialsPatient Reviews
At MSK, we’re committed to delivering the best care to every patient. We use feedback from our patients to continue to improve our care. We also post patient reviews online to help you make healthcare choices. Learn more about our patient experience reviews.
Disclosures
Doctors and faculty members often work with pharmaceutical, device, biotechnology, and life sciences companies, and other organizations outside of MSK, to find safe and effective cancer treatments, to improve patient care, and to educate the health care community.
MSK requires doctors and faculty members to report (“disclose”) the relationships and financial interests they have with external entities. As a commitment to transparency with our community, we make that information available to the public.
Victoria Brennan discloses the following relationships and financial interests:
No disclosures meeting criteria for time period
If you’re a patient at MSK and would like more information about your doctor’s external relationships, please talk with your doctor.
The information published here is for a specific annual disclosure period. There may be differences between information on this and other public sites as a result of different reporting periods and/or the various ways relationships and financial interests are categorized by organizations that publish such data.
This page and data include information for a specific MSK annual disclosure period (January 1, 2021 through disclosure submission in spring 2022). This data reflects interests that may or may not still exist. This data is updated annually.
Learn more about MSK’s COI policies here. For questions regarding MSK’s COI-related policies and procedures, email MSK’s Compliance Office at [email protected].