Gregory J. Riely, MD, PhD; Vice Chair, Clinical Trials Office, Department of Medicine

Gregory J. Riely, MD, PhD

Thoracic Medical Oncologist

Areas of Expertise

Conditions I Treat

  • Lung cancer
  • Thymoma
  • Thymic carcinoma

My Specialties

  • Clinical trials
Dr. Riely's Office Information
Languages: English
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Get to Know Me

I am a board-certified medical oncologist who specializes in treating patients with lung cancer and thymic tumors (thymoma and thymic carcinoma).

In addition to caring for men and women with these diseases, I work to develop new treatments by designing and conducting clinical trials. My clinical research focuses on the treatment of patients with thymic tumors as well as non-small cell lung cancer with specific mutations (EGFR, KRAS, BRAF, or EML4-ALK mutant non-small cell lung cancer).

What I Do at MSK

I'm a thoracic medical oncologist, which is a cancer doctor who specializes in thoracic (thor-A-sik) cancers. These are cancers that have to do with the chest, including lung, tracheal (windpipe), and thymic (thymus) cancers.

  • Ning Zhao and Ge Li Chair in Lung Cancer Research
  • Vice Chair of Clinical Research, Department of Medicine
Areas of Expertise

Conditions I Treat

  • Lung cancer
  • Thymoma
  • Thymic carcinoma

My Specialties

  • Clinical trials
Education & Honors

Education

  • MD, Case Western Reserve University

Residencies

  • Internal Medicine - New York Presbyterian/Weill Cornell Medical Center

Fellowships

  • Medical Oncology - Memorial Sloan Kettering Cancer Center
  • Medicine - Weill Cornell Medical College

Board Certifications

  • Internal Medicine
  • Medical Oncology

Awards and Honors

  • Castle Connolly: America’s Top Doctor (2025)
  • Castle Connolly: America’s Top Doctor (2024)
  • Top Doctors New York Metro Area, Castle Connolly (2023)
  • Fellow, American Society of Clinical Oncology (2023)
  • Castle Connolly: America's Top Doctors (2023)
  • Castle Connolly: New York Magazine: Top Doctor (2018-2019, 2021)

Insurance Information

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Contact and Location

Office Phone
Location
New York, NY
David H. Koch Center for Cancer Care at Memorial Sloan Kettering Cancer Center
530 East 74th Street New York NY 10021
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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.

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See all Thoracic Oncology Service 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.

Search clinical trials

Research and Publications

Publications on PubMed

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

Gregory J. Riely discloses the following relationships and financial interests:

  • American Association for Cancer Research
    Professional Services and Activities (Uncompensated)
  • AstraZeneca
    Professional Services and Activities (Uncompensated)
  • BroadcastMed
    Professional Services and Activities
  • Daiichi Sankyo
    Professional Services and Activities (Uncompensated)
  • Dana Farber
    Professional Services and Activities
  • IDEOlogy Health, LLC
    Professional Services and Activities
  • Mirati Therapeutics
    Professional Services and Activities (Uncompensated)
  • MJH Associates
    Professional Services and Activities
  • National Comprehensive Cancer Network
    Professional Services and Activities
  • Pfizer, Inc.
    Professional Services and Activities (Uncompensated)
  • Research to Practice
    Professional Services and Activities
  • Takeda Pharmaceuticals
    Professional Services and Activities (Uncompensated)

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 ecoi@mskcc.org.


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