Memorial Sloan Kettering radiation oncologist Ariel Marciscano

Ariel E. Marciscano, MD

Radiation Oncologist

Clinical Expertise

Radiation Therapy for Genitourinary Cancers, Including Stereotactic Hypofractionation Accelerated Radiation Therapy to the Prostate (SHARP); Gastrointestinal Cancers; Immunotherapy; Clinical Trials; Stereotactic Radiosurgery (SRS); Intraoperative Radiation Therapy (IORT); Brachytherapy

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Accepted Insurance Providers

Dr. Marciscano accepts the following list of insurance providers. Select your insurance provider to see more details.

Contact and Location

Locations map

Find a Convenient Location

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offers many services, including screening, chemotherapy, and medical testing.

About Me


MD, NYU School of Medicine


Radiation Oncology - The Johns Hopkins Hospital


Immunotherapy - National Cancer Institute, Center for Cancer Research

Board Certifications

Radiation Oncology

I am a board-certified radiation oncologist who specializes in caring for people with genitourinary cancers, including prostate cancer, bladder cancer, and kidney cancers. I also care for patients with gastrointestinal and hepatobiliary cancers. My primary goals are to deliver excellent, compassionate, patient-centered care and to support my patients and their loved ones through their cancer treatment.

I firmly believe that cancer care is not a one-size-fits-all approach. My philosophy is to educate and empower patients with information about their diagnosis so that they can confidently choose a treatment plan that is individualized to their specific needs, personal preferences, and values.

For patients who receive radiation treatment at MSK, we offer several cutting-edge, state-of-the-art technologies. These include image-guided radiation therapy, stereotactic body radiation therapy, proton therapy, and brachytherapy. These techniques allow us to more effectively treat cancer while minimizing side effects. The outstanding clinical care and exceptional technical expertise ensures that radiation treatment is always delivered safely and with precision.

We also place great emphasis on convenience. Our patients can utilize a number of treatment facilities throughout the MSK regional network in New Jersey and New York, including at MSK Monmouth, where I see patients. We are excited to offer several radiation treatment schedules tailored to our patients’ lives. For example, some patients with prostate cancer may be eligible for a radiation treatment regimen that spans days rather than months.

For people interested in participating in clinical trials, we offer several research studies that aim to advance our existing standards of cancer care. I am deeply committed to improving the lives of people with cancer through research and have been involved in both lab research and clinical research for over a decade. As a research fellow in the Bloomberg-Kimmel Institute for Cancer Immunotherapy at Johns Hopkins, I studied how to optimize the combination of stereotactic radiation and immunotherapy and how to use new imaging techniques to monitor the immune response to radiation. I also completed specialized training in immuno-oncology at the National Cancer Institute where I focused on novel radiation-drug combinations and early-phase immunotherapy clinical trials in genitourinary cancers.

As a New York/New Jersey native, it is an honor to be part of Memorial Sloan Kettering and to provide top-notch cancer care to members of this community.

My philosophy is to educate and empower patients with information about their diagnosis so that they can confidently choose a treatment plan that is individualized to their specific needs, personal preferences, and values.

Dr. Marciscano

Awards and Honors

  • AACR/ASCO Methods in Clinical Cancer Research (2018)
  • ASTRO Promoting Science through Research and Training Committee (2018)
  • SITC-NCI Immunotherapy Fellowship (2017)
  • RSNA R&E Foundation Research Fellow Grant (2017)
  • RSNA Roentgen Resident/Fellow Research Award (2017)
  • ASTRO Incorporating Radiation Oncology into Immunotherapy Committee (2017)
  • AACR Scholar-In-Training Award, Tumor Immunology & Immunotherapy (2016)
  • AACR Molecular Biology in Clinical Oncology (2016)
  • ASTRO Residents/Fellows in Radiation Oncology Research Grant (2015)


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.

Clinical Trials

Smiling doctors in the lab

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.

Research and Publications

Publications on PubMed

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