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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
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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

A thoracic medical oncologist 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

Understanding your insurance options is an important part of managing your cancer care. We have relationships with many common healthcare providers and plans.

Aetna

In Network Coverage Type
HMO, EPO PPO, POS, Transplant

Aetna Medicare Advantage (MTA and NYC retirees only)

In Network Coverage Type
PPO

Anthem BCBS and other BCBS licensee plans

In Network Coverage Type
PPO, POS, EPO, HMO

See updates

Anthem BCBS Health Plus

In Network Coverage Type
HMO

See updates

Blue Cross Blue Shield Federal Employee Program

In Network Coverage Type
HMO, PPO

See updates

Blue Cross Blue Shield states outside of NY/NJ

In Network Coverage Type
HMO, EPO PPO, POS

See updates

Carrum Health

In Network Coverage Type
Supplemental

Cigna

In Network Coverage Type
PPO, POS, HMO

Connecticare

In Network Coverage Type
POS, EPO, HMO

First Health

In Network Coverage Type
PPO

Straight NJ Medicaid

In Network Coverage Type
State Government

Straight NY Medicaid

In Network Coverage Type
State Government

Emblem

In Network Coverage Type
PPO, POS, EPO, HMO

Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.

Emblem Essential

In Network Coverage Type
HMO

Emblem Medicare Advantage (Medicare Choice PPO Network and VIP Prime Network Only)

In Network Coverage Type
PPO, HMO

Empire Essential

In Network Coverage Type
HMO

Empire Plan / NYSHIP (Blue Cross/UnitedHealthcare split plan)

In Network Coverage Type
PPO

See updates

Fidelis

In Network Coverage Type
HMO, EPO

Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.

Fidelis Managed Medicaid & HARP

In Network Coverage Type
HMO

Fidelis Medicare Advantage

In Network Coverage Type
HMO

Healthfirst

In Network Coverage Type
EPO, HMO, PPO, POS

Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.

Healthfirst Managed Medicaid

In Network Coverage Type
HMO

Healthfirst Medicare Advantage

In Network Coverage Type
HMO, PPO

Healthsmart

In Network Coverage Type
PPO EPO

Horizon Blue Cross Blue Shield New Jersey (HMO)

In Network Coverage Type
HMO

See updates

Horizon Blue Cross Blue Shield New Jersey (PPO)

In Network Coverage Type
PPO

See updates

Horizon Blue Cross Blue Shield New Jersey Omnia Tier I (EPO)

In Network Coverage Type
EPO

See updates

Horizon Blue Cross Blue Shield New Jersey Omnia Tier II (EPO)

In Network Coverage Type
EPO

See updates

Horizon Medicare Advantage

In Network Coverage Type
PPO, HMO

Husky CT Medicaid

In Network Coverage Type
State Government

Magnacare

In Network Coverage Type
PPO, POS, EPO

Medicare Part A&B (traditional Medicare)

In Network Coverage Type
Federal Government

Metroplus

In Network Coverage Type
HMO

City Employee Health Plans (Gold and Gold Care)

Multiplan/Beech Street/PHCS

In Network Coverage Type
Supplemental

MVP

In Network Coverage Type
PPO/OAP

Non-Participating Plans with Out of Network Benefits

In Network Coverage Type
PPO, POS, EPO, HMO

NYC Medicare Advantage Plus for City Employees

In Network Coverage Type
TBD

Oscar

In Network Coverage Type
HMO/EPO

Oxford

In Network Coverage Type
PPO, EPO

World Trade Center Health Program (WTC)

In Network Coverage Type
State Government

Qualcare

In Network Coverage Type
PPO, POS, HMO

Tricare

In Network Coverage Type
PPO, HMO

UMR

In Network Coverage Type
PPO, POS

United Healthcare

In Network Coverage Type
PPO, POS, HMO

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

Dr. Riely sees patients at one 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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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 Leadership doctors

See all Thoracic Oncology Service doctors

Clinical Trials

Read more
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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

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.

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

  • American Association for Cancer Research
    Professional Services and Activities (Uncompensated)
  • American Society of Clinical Oncology (ASCO)
    Professional Services and Activities (Uncompensated)
  • Bio Ascend
    Professional Services and Activities
  • Community Oncology Alliance (COA)
    Professional Services and Activities
  • Dava Oncology
    Professional Services and Activities
  • Imedex, Inc.
    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)
  • Triptych Health Partners, LLC
    Professional Services and Activities

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, 2023 through disclosure submission in spring 2024). 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].


View all disclosures

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