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Karen Queliza

Karen Queliza, MD

Pediatric Gastroenterologist

My Role at MSK

Areas of Expertise

Conditions I Treat

  • Gastrointestinal diseases and complications
  • Gastrointestinal complications

My Specialties

  • Endoscopy
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Dr. Queliza's Office Information
Languages: English
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About Me

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

I am a pediatric gastroenterologist, a doctor who specializes in the care of children with digestive disorders. I joined the MSK Kids team in 2019 to care for and support patients with primary gastrointestinal (GI) diseases and GI complications related to cancer and its treatment. I collaborate very closely with medical and surgical oncologists to best address the GI issues that can occur during and after cancer treatment. I also see patients who have an increased risk of GI cancer due to inherited genetic abnormalities (such as polyposis syndromes).

I chose this subspecialty because of my own interest in diseases of the GI tract and in the medications and procedures we use to address them. I am driven to better understand how GI issues affect children with cancer and how to improve the diagnosis and treatment. Most of what we know in this unique group of patients is based on studies and experience in adults. Therefore, the topic of pediatric “onco-gastroenterology” (the GI care of patients with pediatric cancers) is an essential area for exploration and research.

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As a pediatric gastroenterologist, I perform endoscopy (the examination of the digestive tract through a special tube) to evaluate and treat GI tract disorders. I completed a fellowship in Pediatric Gastroenterology, Hepatology and Nutrition at Baylor College of Medicine and Texas Children’s Hospital. Afterward, I stayed for an additional year to complete a Pediatric Advanced Endoscopy fellowship and learned advanced endoscopic techniques, such as endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS), and single balloon enteroscopy. I also earned a Master of Science degree in Clinical Investigation from Baylor College of Medicine. My research interests include hereditary polyposis syndromes, pancreatic and biliary diseases, and outcomes of endoscopy in children.

At MSK Kids, I participate in the Pediatric Cancer Predisposition Screening Program and perform surveillance endoscopy to monitor children with hereditary polyposis syndromes — inherited diseases that involve the development of tissue growths (called polyps) in the GI tract that may develop into cancer. I am also an active member of the Pediatric Multidisciplinary Feeding Program, which focuses on the treatment of children who experience feeding difficulties during and even after cancer therapy. Furthermore, I participate in the Multidisciplinary Graft-Versus-Host Disease (GVHD) Clinic for patients who develop GVHD, a potential complication of allogeneic hematopoietic stem cell transplantation (receiving a stem cell transplant from a donor).

Pediatric cancer care is complex and can be overwhelming for patients and their families. I strive to continuously recognize these challenges with compassion and to provide comprehensive services. Through diligence and close communication with my cancer care colleagues, I aim to provide high-quality care that aligns with each patient’s needs and values.

My Role at MSK

A pediatric gastroenterologist (GAS-troh-EN-teh-RAH-loh-jist) is a doctor who treats children and adolescents and has special training in the gastrointestinal (GI) system. This includes the esophagus, intestines, stomach, bile ducts, gallbladder, liver, and pancreas.

Areas of Expertise

Conditions I Treat

  • Gastrointestinal diseases and complications
  • Gastrointestinal complications

My Specialties

  • Endoscopy

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.

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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.

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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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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.

Karen Queliza 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, 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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