Pictured: Deborah Korenstein

Deborah Korenstein, MD


Chief, General Internal Medicine Service

Clinical Expertise

Adult primary care

New Patient Appointments

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Accepted Insurance Providers

Dr. Korenstein accepts the following list of insurance providers. Select your insurance provider to see more details.

Contact and Location

Locations map

Find a Convenient Location

Memorial Sloan Kettering has locations throughout New York City, Long Island, New Jersey, and Westchester. These locations offers many services, including screening, chemotherapy, and medical testing.

About Me


MD, Columbia University College of Physicians and Surgeons


Beth Israel Hospital (Boston)

Board Certifications

Internal Medicine

I am an internal medicine specialist with many years of clinical experience as a primary care physician and academic experience as a researcher and educator of physicians in training. My work at Memorial Sloan Kettering focuses on the value of care for patients with cancer, seeking to minimize unnecessary and potentially harmful tests and treatments and ensure that our patients receive the helpful care they really need. This work involves both specific quality-improvement initiatives and research into the factors that lead to patients’ receiving unneeded care. My ultimate goal is to understand how and why lower-value care takes place and to design and implement programs to optimize care delivery.

In my clinical work at MSK, I provide ongoing care to adult survivors of childhood and other high-risk cancers in the Adult Long-Term Follow-Up Program, in which I work with nurse practitioners and other professionals to care for the whole patient and coordinate with subspecialists to optimize complex care.


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

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.

Research and Publications

Publications on PubMed

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