Dr. James Yoon

James Yoon, MD

Areas of Expertise

Conditions I Treat

  • Leukemia
  • Acute lymphocytic leukemia (ALL)
  • Acute myeloid leukemia (AML)

My Specialties

  • Clinical trials
Request an Appointment
Our Care Advisors can answer many of your questions. They will connect you with the best healthcare provider for your needs.

Get to Know Me

I am a board-certified hematologist and medical oncologist who specializes in treating people with different types of leukemia and other blood cancers. I see patients at Memorial Hospital.

Patients are at the center of my work. I make it a priority to understand their values and concerns, while guiding them through one of the most challenging moments in their lives. I also believe that a strong, multidisciplinary team can help provide patients with all the tools they need to be successful in their cancer treatment.

At MSK, I work closely with an entire team of leukemia specialists, consultants, pharmacists, nurses, advanced practice practitioners, social workers, care managers, and hospital staff to deliver the best possible care to our patients.

My other role is to collaborate with the clinical trials program and scientists at MSK to study new therapies for leukemia and other blood cancers, with the goal of improving our patients’ outcomes. I envision a future in which patients will have access to a wide range of targeted, effective, and tolerable cancer treatments.

What I Do at MSK

I’m a leukemia specialist, which is a doctor with special training in diagnosing and treating leukemia (loo-KEE-mee-uh). This cancer starts in tissue that forms blood, such as bone marrow.

  • Assistant Attending Physician
Areas of Expertise

Conditions I Treat

  • Leukemia
  • Acute lymphocytic leukemia (ALL)
  • Acute myeloid leukemia (AML)
  • Acute promyelocytic leukemia (APL)
  • Chronic lymphocytic leukemia (CLL)
  • Chronic myeloid leukemia (CML)
  • Myeloproliferative neoplasms (MPN)/Myeloproliferative disorders
  • Hairy cell leukemia (HCL)
  • Systemic mastocytosis
  • Myelodysplastic syndrome (MDS)
  • Blood, bone marrow, and hematologic cancers and conditions

My Specialties

  • Clinical trials
Education & Honors

Education

  • MD, Icahn School of Medicine at Mount Sinai

Residencies

  • Internal Medicine, Emory University

Fellowships

  • Hematology and Medical Oncology, University of Michigan

Board Certifications

  • Internal Medicine
  • Medical Oncology
  • Hematology

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.

Make an Appointment

Current Patients
Request an appointment by calling your Care Team or messaging them in MSK MyChart.

Contact and Location

Office Phone
Location
New York, NY
1275 York Avenue New York NY 10065

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 Leukemia Service doctors

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.

Search clinical trials

Research and Publications

Publications on PubMed

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

James Yoon 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].


View all disclosures