Diana Roth O’Brien, MD, MPH
Radiation Oncologist
My Role at MSKWe post reviews for MSK healthcare providers who have at least 30 patient experience surveys completed. If you do not see reviews for a provider, it may be because they do not yet have enough survey responses, or the provider may not be part of the group of healthcare providers included in the survey.
Only outpatient providers are included in the survey. Healthcare providers who only work in the hospital or in urgent care are not included in the survey. Pathologists or researchers who do not provide direct care to patients do not have reviews.
Areas of Expertise
My Specialties
- Image-Guided Radiotherapy (IGRT)
- Intensity Modulated Radiotherapy (IMRT)
- Stereotactic Body Radiotherapy (SBRT)
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About Me
- Assistant Attending Radiation Oncologist
I am a radiation oncologist who specializes in using cutting-edge radiotherapy techniques to treat a variety of cancers. These techniques include image-guided radiation therapy, intensity modulated radiation therapy, stereotactic radiosurgery, and stereotactic body radiotherapy.
From early in my medical training, I was drawn to radiation oncology because of the deeply multidisciplinary nature of cancer care. MSK combines a collaborative environment, effective and innovative technology, and extensive resources that allow me to ensure that all of my patients receive optimal care.
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Much of my research has focused upon identifying causes of, and reducing side effects associated with, radiotherapy. I am passionate about using my expertise and technology to ensure that my patients not only have their cancer effectively managed, but enjoy the best possible quality of life for years and decades following their treatment. During medical school, in addition to my medical degree, I pursued a Master of Public Health. This additional training has made me acutely aware of how many broad societal factors — beyond the scope of clinic visits — deeply influence the decisions that patients make. As a result, my research has also investigated the barriers that patients face in completing optimal, timely care, and methods to mitigate these obstacles.
For many patients, radiotherapy is a largely unknown and daunting process; as such, I prioritize listening and educating. Regardless of diagnosis, each patient brings unique perspective, values, concerns, and needs to a medical encounter. My aim is to explain complex treatment plans patiently and in an approachable way, such that my patients feel empowered to make informed, personalized decisions, and prepared to embark upon radiotherapy.
Outside of the office, I enjoy traveling, SCUBA diving, knitting, and spending time with my dogs.
A radiation oncologist is a cancer doctor with special training in using radiation therapy (RT) to treat cancer with radiation.
My Specialties
- Image-Guided Radiotherapy (IGRT)
- Intensity Modulated Radiotherapy (IMRT)
- Stereotactic Body Radiotherapy (SBRT)
- Stereotactic Radiosurgery (SRS)
- Central Nervous System Tumors
- Breast Cancer
- Prostate Cancer
- Lung Cancer
- Head & Neck Cancer
- Gastrointestinal Cancers
- Gynecologic Cancers
Education
- MD, MPH, SUNY Downstate College of Medicine
Residencies
- Radiation Oncology – NewYork-Presbyterian/Weill Cornell Medical Center
Awards and Honors
- Delta Omega Alpha Public Health Honor Society (2015)
- Alpha Omega Alpha Honor Medical Society (2015)
- Best of ASTRO Abstract (2017)
- The Radiosurgery Society Resident Committee (2019)
Board Certifications
- Radiation Oncology
Insurance Information
Understanding your insurance options is an important part of managing your cancer care. We have relationships with many common healthcare providers and plans.
In Network Coverage Type
HMO, PPO
In Network Coverage Type
HMO, EPO PPO, POS
In Network Coverage Type
PPO, POS, HMO
MSK has a tentative agreement with Cigna to continue coverage in 2024.
In Network Coverage Type
PPO, POS, EPO, HMO
Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.
In Network Coverage Type
PPO
In Network Coverage Type
HMO, EPO
Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.
In Network Coverage Type
EPO, HMO, PPO, POS
Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.
In Network Coverage Type
EPO
In Network Coverage Type
EPO
In Network Coverage Type
Federal Government
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
State Government
Don't see your carrier or plan? We can help you understand your coverage.
If you don't have health insurance or are worried that your care may not be fully covered, our financial assistance programs may be able to help.
If you have questions about insurance, call us at 646-497-9176.
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New Patients
Current Patients
Contact and Location
Dr. Roth O’Brien sees patients at one location.
Looking to see a doctor at a different location? See all MSK locations.
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, Regional Care Network doctors
Clinical Trials
- Clinical Trials Investigated by Dr. Roth O’Brien
- A Phase 3 Study of HER2-Targeted Therapy With and Without Radiation Therapy for Low-Risk Breast 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 trialsResearch and Publications
Visit PubMed for a full listing of Dr. Roth O’Brien’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.
See all on PubMedPatient Reviews
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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.
Diana Roth O’Brien 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, 2022 through disclosure submission in spring 2023). 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].
