Geoffrey Y. Ku, MD
Gastrointestinal Medical Oncologist & Cellular Therapist
My Role at MSKWe post reviews for MSK healthcare providers who have at least 30 patient experience surveys completed. If you do not see reviews for a provider, it may be because they do not yet have enough survey responses, or the provider may not be part of the group of healthcare providers included in the survey.
Only outpatient providers are included in the survey. Healthcare providers who only work in the hospital or in urgent care are not included in the survey. Pathologists or researchers who do not provide direct care to patients do not have reviews.
Areas of Expertise
My Specialties
- Gastrointestinal Malignancies
- New Chemotherapies
- Esophageal and Gastric Cancers
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About Me
- Associate Attending Physician
I am a medical oncologist who cares for people with cancer in the gastrointestinal tract, including:
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I graduated from the University of Pennsylvania School of Medicine. I completed an internal medicine residency at NewYork-Presbyterian Hospital at Weill Cornell, followed by a medical oncology fellowship at Memorial Sloan Kettering Cancer Center (MSK). I also spent an additional year at the Ludwig Center for Cancer Immunotherapy at MSK. My research in that time focused on translational correlative assays for the then new field of immunotherapy.
Now, my research focuses on developing new treatments for people with esophageal and gastric cancers. I am interested in exploring the combination of chemotherapy and radiation to treat esophageal cancer. I am also investigating cellular therapy, immunotherapy, and targeted therapies both to cure and to minimize the symptoms of cancer.
I feel truly privileged to be at MSK. It is a unique and empowering experience to work at an institution whose sole focus is the treatment of cancer and the exploration of ways to improve cancer therapy. We attract staff members from all over the world; all of us have the same focus and dedication to providing expert cancer care.
On a personal note, my team and I strive to treat each patient as an individual. We care for our patients in the same way that we would want our dearest family members and friends to be cared for. I recognize that I am meeting patients and their families at a time of great physical and emotional vulnerability and do my best to uphold the trust and confidence they have in us.
I am currently Head of the Esophagogastric Section in the Gastrointestinal Oncology Service. Since 2020, I have also held an appointment on the Cellular Therapy Service, where we are investigating novel cellular therapies, such as chimeric antigen receptor (CAR) T cell therapy.
Outside of MSK, I have served as a member of the Gastrointestinal Non-Colorectal Cancer Track for the Scientific Program Committee of the American Society of Clinical Oncology (ASCO). I was privileged to serve as the Track Leader for 2015–2016. I am currently a member of the National Cancer Institute’s (NCI’s) Esophagogastric Task Force and NRG Oncology’s Gastrointestinal Non-Colorectal Cancer Core Committee. I was also recently part of a panel organized by the Society for Immunotherapy of Cancer (SITC) to help develop guidelines for the use of immunotherapy in gastrointestinal cancers.
A gastrointestinal (GAS-troh-in-TES-tih-nul) medical oncologist is a cancer doctor who specializes in gastrointestinal (GI) cancers. This includes anal, colorectal, esophageal, gastric (stomach), liver, and pancreatic cancers, as well as GI stromal tumors and neuroendocrine tumors.
A cellular therapy specialist is a doctor with special training in using cell therapies to treat health conditions such as cancer. Therapies can include chimeric antigen receptor (CAR) T cell therapy.
My Specialties
- Gastrointestinal Malignancies
- New Chemotherapies
- Esophageal and Gastric Cancers
Education
- MD, University of Pennsylvania School of Medicine
Residencies
- NewYork-Presbyterian Hospital/Weill Cornell Medical Center
Awards and Honors
- Castle Connolly: Top AAPI Doctor (2024)
- Castle Connolly: America’s Top Doctor (2024)
- Top Doctors New York Metro Area, Castle Connolly (2023)
- Castle Connolly: America's Top Doctors (2023)
Fellowships
- Memorial Sloan Kettering Cancer Center
Board Certifications
- Medical Oncology
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.
In Network Coverage Type
HMO, PPO
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
HMO, EPO PPO, POS
In Network Coverage Type
PPO, POS, EPO, HMO
Offers a qualified health plan from the Health Insurance Marketplace. Call Emblem to learn more.
In Network Coverage Type
PPO, HMO
In Network Coverage Type
PPO, HMO, DSN
In Network Coverage Type
PPO
In Network Coverage Type
HMO, EPO
Offers a qualified health plan from the Health Insurance Marketplace. Call Fidelis to learn more.
In Network Coverage Type
EPO, HMO, PPO, POS
Offers a qualified health plan from the Health Insurance Marketplace. Call Healthfirst to learn more.
In Network Coverage Type
HMO
In Network Coverage Type
PPO
In Network Coverage Type
EPO
In Network Coverage Type
EPO
In Network Coverage Type
Federal Government
In Network Coverage Type
PPO, POS, EPO, HMO
In Network Coverage Type
State Government
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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New Patients
Current Patients
Contact and Location
Dr. Ku sees patients at two locations.
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.
Clinical Trials
- Clinical Trials Investigated by Dr. Ku
- A Phase 1/2 Study of TAC01-CLDN18.2 Cellular Therapy in People With Advanced Solid Tumors
- A Phase I Study of Telomelysin Added to Chemoradiation for Patients with Advanced Inoperable Esophageal Cancer
- A Phase I Study of TJ033721 Immunotherapy in People with Advanced Pancreatic or Esophagogastric Cancer
- A Phase I/II Study of Durvalumab and Chemoradiation before Surgery for Esophageal Cancer
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- Clinical Trials Co-Investigated by Dr. Ku
- A Phase 1 Study of ASP2138 in People With Pancreatic Cancer or Stomach or Gastroesophageal Junction Cancer That Makes Claudin (CLDN) 18.2
- A Phase 2 Study of AgenT-797 Plus Botensilimab, Balstilimab, Ramucirumab, and Paclitaxel for People With Esophageal, Gastric, or Gastro-esophageal Junction Cancers
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 trialsResearch and Publications
Visit PubMed for a full listing of Dr. Ku’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 PubMedPatient Reviews
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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.
Geoffrey Y. Ku discloses the following relationships and financial interests:
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Astellas
Professional Services and Activities -
AstraZeneca
Professional Services and Activities -
Bayer
Professional Services and Activities -
Bristol-Myers Squibb
Professional Services and Activities
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I-Mab Biopharma
Professional Services and Activities -
Jazz Pharmaceuticals
Professional Services and Activities -
Merck & Co Inc.
Professional Services and Activities -
Zymeworks Inc.
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].