Achraf Shamseddine, MD, PhD

Radiation Oncologist

Areas of Expertise

Conditions I Treat

  • Head and neck cancers
  • Skin cancer and conditions
  • Melanoma of the skin

My Specialties

  • External beam radiation
Dr. Shamseddine's Office Information
Languages: English, Arabic, and French
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Get to Know Me

I am a radiation oncologist specializing in radiation therapy, a type of cancer treatment that uses precisely focused, high-energy beams to kill cancer cells. I am an expert in external beam radiation therapy, a method that uses a treatment machine to aim and deliver beams of radiation to the tumor. These invisible beams — which cannot be felt by the patient — pass through the body, killing cancer cells in the process.

I provide external beam radiation therapy at MSK Commack and MSK Nassau.

A cancer diagnosis is stressful not only for the patient, but also for their family and friends. When I first meet with patients, I clearly and empathetically explain the diagnosis and the available treatment options. Taking the time to make medical recommendations that align with each patient’s care goals is important to me; I want patients to feel heard, seen, and respected.

I was first interested in the medical field for the human experience and believe that aiding a person in a time of need is a privilege. Beyond providing care directly to patients, I also enjoy the research aspect of medicine and am involved in multiple clinical and basic science research efforts.

Outside the office, I am a regular person who enjoys the outdoors and running to stay physically active.

What I Do at MSK

I'm a radiation oncologist, which is a cancer doctor with special training in using radiation therapy (RT) to treat cancer.

  • Assistant Attending Radiation Oncologist
Areas of Expertise

Conditions I Treat

  • Head and neck cancers
  • Skin cancer and conditions
  • Melanoma of the skin

My Specialties

  • External beam radiation
Education & Honors

Education

  • MD, PhD, Stony Brook University, New York

Residencies

  • Radiation Oncology, Memorial Sloan Kettering Cancer Center

Board Certifications

  • Radiation Oncology

Awards and Honors

  • IMRAS Grant, 2021

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.

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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Current Patients
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Contact and Location

Office Phone
Location
Commack, NY
Uniondale, NY
Memorial Sloan Kettering Commack Nonna’s Garden Foundation Center
650 Commack Road Commack NY 11725
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Memorial Sloan Kettering Nassau
1101 Hempstead Turnpike Uniondale NY 11553
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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 Radiation Oncology doctors

See all External Beam Radiotherapy Service, Regional Care Network doctors

Clinical Trials

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Find a Clinical Trial for You

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.

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Research and Publications

Publications on PubMed

Visit PubMed for a full listing of Dr. Shamseddine’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 PubMed

Disclosures

Members of the MSK Community 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. These activities outside of MSK further our mission, provide productive collaborations, and promote the practical application of scientific discoveries.

MSK requires doctors, faculty members, and leaders 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. Not all disclosed interests and relationships present conflicts of interest. MSK reviews all disclosed interests and relationships to assess whether a conflict of interest exists and whether formal COI management is needed.

Achraf Shamseddine 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 a complement to other publicly reported data and 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, 2024 through disclosure submission in spring 2025). 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].


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