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Dr. Marion Liu

Marion Liu, MD

Surgeon

My Role at MSK

Areas of Expertise

My Specialties

  • Stomach (Gastric) Cancer
  • Gastrointestinal Stromal Tumor (GIST)
  • Minimally Invasive Surgery
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Dr. Liu's Office Information
Languages: English
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About Me

What I Do at MSK
  • Assistant Attending Surgeon
Get To Know Me

I am a surgeon who treats people for stomach (gastric) cancer and soft tissue sarcomas such as gastrointestinal stromal tumors (GIST). I see patients at Memorial Hospital and Rockefeller Outpatient Pavilion in New York City and Memorial Sloan Kettering Monmouth in New Jersey.

As a surgeon, I aim to not just surgically remove the cancer but to take care of my patients and their families to the best of my ability. I want my patients to understand their diagnosis and treatment options so we can make decisions together about the best plan of action. In addition to surgery, these treatments may include chemotherapy, radiation, or even new treatments offered through clinical trials. I work closely with a team of medical oncologists, radiation oncologists, and pathologists to design a comprehensive and personalized plan for each patient.

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Surgery plays a key role in the treatment of stomach cancer. When possible, I offer minimally invasive robotic surgery to remove the tumor and the surrounding lymph nodes. This technology can enhance recovery, but my priority will always be to offer the best option to each patient. In some cases, stomach surgery can alter how you eat and digest food. Our team of specialty trained nurses and nutritionists can help you adjust to eating after stomach surgery. My goal is not just to cure cancer but to optimize the quality of life of my patients.

In addition to treating patients with stomach cancer, I also study stomach cancer in the lab. We use mouse models to understand how stomach cancer develops and find novel ways to treat it. As much as possible, we build these models using the genomic characteristics that we observe in our patients, so they can closely represent the cancers that we are treating. Our goal is to take what we discover in the lab and translate it to clinical practice through clinical trials.

As a surgeon-scientist, I like to ask questions that challenge our understanding of cancer. I hope my patients will also ask me questions and challenge me to improve our treatment of stomach cancer. 

My Role at MSK

A surgeon is a doctor with special training in many kinds of surgery.

Areas of Expertise

My Specialties

  • Stomach (Gastric) Cancer
  • Gastrointestinal Stromal Tumor (GIST)
  • Minimally Invasive Surgery
Education & Honors

Education

  • BA, Harvard University
  • MD, University of Illinois

Residencies

  • General Surgery, NewYork-Presbyterian Hospital/ Weill Cornell Medical Center

Awards and Honors

  • Chief Fellow, Memorial Sloan Kettering Cancer Center (2023-2024)
  • Sarcoma Fellow, Kristen Ann Carr Fund (2023)
  • Hassan Naama Memorial Resident Award, NewYork-Presbyterian Hospital/Weill Cornell (2022)

Fellowships

  • Complex General Surgical Oncology, Memorial Sloan Kettering Cancer Center

Board Certifications

  • American Board of Surgery

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

Anthem Blue Cross Medicare Advantage

In Network Coverage Type
PPO, HMO, DSN

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

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

First Health

In Network Coverage Type
PPO

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

Straight NJ Medicaid

In Network Coverage Type
State Government

Straight NY Medicaid

In Network Coverage Type
State Government

Medicare Part A&B (traditional Medicare)

In Network Coverage Type
Federal Government

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.

Make an Appointment

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Current Patients
Request an appointment by logging on to MyMSK or calling your doctor’s office. If you aren’t registered for MyMSK, call 646-227-2593 for your Enrollment ID.

Contact and Location

Dr. Liu sees patients at three locations.

Location
Middletown, NJ
New York, NY
Memorial Sloan Kettering Monmouth
480 Red Hill Road Middletown NJ 07748
Get Directions
Rockefeller Outpatient Pavilion
160 East 53rd Street New York NY 10022
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Memorial Sloan Kettering Cancer Center
1275 York Avenue New York NY 10065
Get Directions

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 Gastric and Mixed Tumor 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

Rossi, F., M. Liu, A. Tieniber, M. S. Etherington, A. Hanna, G. A. Vitiello, N. J. Param, K. Do, L. Wang, C. R. Antonescu, S. Zeng, J. Q. Zhang and R. P. DeMatteo (2023). “Myosin Light-Chain Kinase Inhibition Potentiates the Antitumor Effects of Avapritinib in PDGFRA D842V-Mutant Gastrointestinal Stromal Tumor.” Clin Cancer Res 29(11): 2144-2157

Liu, M., M. S. Etherington, A. Hanna, B. D. Medina, G. A. Vitiello, T. Bowler, N.J. Param, L. Levin, F. Rossi and R. P. DeMatteo (2021). “Oncogenic Kit modulates type I IFN-mediated antitumor immunity in GIST.” Cancer Immunol Res 9(5): 542-553.

Medina, B. D., M. Liu, G. A. Vitiello, A. M. Seifert, S. Zeng, T. Bowler, J. Q. Zhang, M. J. Cavnar, J. K. Loo, N. J. Param, J. H. Maltbaek, F. Rossi, V. Balachandran and R. P. DeMatteo (2019). “Oncogenic kinase inhibition limits Batf3-dependent dendritic cell development and antitumor immunity.” J Exp Med 216(6): 1359-1376.

Vitiello, G. A., T. G. Bowler, M. Liu, B. D. Medina, J. Q. Zhang, N. J. Param, J. K. Loo, R. L. Goldfeder, F. Chibon, F. Rossi, S. Zeng and R. P. DeMatteo (2019). “Differential immune profiles distinguish the mutational subtypes of gastrointestinal stromal tumor.” J Clin Invest 129(5): 1863-1877.

Publications on PubMed

Visit PubMed for a full listing of Dr. Liu’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