Memorial Sloan Kettering gastroenterologist David Faleck

David Faleck, MD

Gastroenterologist

Areas of Expertise

Conditions I Treat

  • Gastrointestinal diseases and complications
  • Inflammatory bowel disease (IBD)
  • Colon cancer

My Specialties

  • Colonoscopy
  • Polypectomy
  • Chromoendoscopy
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Dr. Faleck's Office Information
Languages: English
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Get to Know Me

I am a gastroenterologist who specializes in caring for people with inflammatory bowel disease (IBD). I have a particular interest in addressing the challenges faced by people managing both IBD and cancer. I also specialize in treating the gastrointestinal (GI) side effects of immunotherapies, which can cause IBD-like illnesses in people undergoing treatment.

People with cancer who are being treated with certain types of immunotherapies are at risk for developing various immune-related side effects. I lead the management of treating these GI complications at Memorial Sloan Kettering Cancer Center and work closely with oncologists and other medical specialists to treat these side effects effectively while also helping patients to continue their cancer treatments.

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I also lead the management of patients with IBD, with a special focus on patients who have or who are at risk for cancer. I work with nurses, oncologists, colorectal surgeons, nutritionists, mental health professionals, and other specialists to optimize care for my patients. I place a special emphasis on preventive care to reduce the risk of IBD-related infections and both GI and non-GI cancers. For high-risk patients having a colonoscopy, I use a technique called chromoendoscopy to improve the chances of seeing precancerous changes in the colon.

I am actively involved in clinical research. I lead several studies at MSK that aim to deepen our understanding of the GI complications of immunotherapy in order to develop safe and effective therapies to treat or even to prevent these side effects. I also help lead a study seeking to identify novel, noninvasive markers of intestinal cancers in people with long-standing IBD.

GI conditions, and IBD in particular, often have a profound impact on a person’s quality of life. Because of their symptoms, people with IBD or IBD-like illnesses may even fear leaving the house and participating in daily activities. I strive to reassure my patients that with appropriate treatment, they can achieve tremendous improvement in their symptoms and regain a meaningful quality of life.

After I meet with patients, I hope they walk away with a sense that I empathize with their condition and have the knowledge and tools to help alleviate their symptoms. I firmly believe that a strong partnership between patients and doctors provides for the best possible outcomes. Together, we can treat their symptoms and disease and improve their quality of life.

What I Do at MSK

I'm a gastroenterologist (GAS-troh-EN-teh-RAH-loh-jist), which is a doctor with special training in the gastrointestinal (GI) system. This includes the esophagus, intestines, stomach, bile ducts, gallbladder, liver, and pancreas.

  • Director of Inflammatory and Immune-Related Bowel Diseases
Areas of Expertise

Conditions I Treat

  • Gastrointestinal diseases and complications
  • Inflammatory bowel disease (IBD)
  • Colon cancer
  • Rectal cancer

My Specialties

  • Colonoscopy
  • Polypectomy
  • Chromoendoscopy
  • Upper endoscopy
  • Percutaneous endoscopic gastrostomy (PEG) feeding tube
Education & Honors

Education

  • MD, Albert Einstein College of Medicine

Residencies

  • Internal Medicine, Columbia University Medical Center/New York-Presbyterian

Fellowships

  • Gastroenterology, Mount Sinai Hospital

Board Certifications

  • Internal Medicine
  • Gastroenterology

Awards and Honors

  • Castle Connolly: America’s Top Doctor (2025)
  • Castle Connolly: America’s Top Doctor (2024 & 2023)
  • Top Doctors New York Metro Area, Castle Connolly (2023)
  • Excellence in Outpatient Care Collaboration Award (2023)
  • Chanel Endowment Award for Survivorship Research (2023)
  • New York Magazine: Top Doctors (2022)

Insurance Information

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If you have questions about insurance, call us at 646-497-9176.

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Contact and Location

Dr. Faleck sees patients at one location.

Office Phone
Location
New York, NY
Rockefeller Outpatient Pavilion
160 East 53rd Street New York NY 10022
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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.

See all Gastroenterology, Hepatology and Nutrition 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.

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Research and Publications

Publications on PubMed

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

David Faleck discloses the following relationships and financial interests:

  • AstraZeneca
    Professional Services and Activities
  • Ferring Pharmaceutics
    Professional Services and Activities
  • Gilead Sciences, Inc.
    Professional Services and Activities
  • Janssen Research & Development, LLC
    Professional Services and Activities
  • OnQuality Pharmaceuticals Ltd.
    Professional Services and Activities
  • Teva Pharmaceutical Industries Ltd.
    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].


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