Stephen E. Fleming, MD

Stephen E. Fleming, MD


Clinical Expertise

CT; Ultrasound; General Nuclear Medicine; Positron Emission Tomography

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Accepted Insurance Providers

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

Contact and Location

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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, Mercer University School of Medicine


Ochsner Clinic Foundation


New York University

Board Certifications

Radiology; Nuclear Medicine

I am a diagnostic radiologist and nuclear medicine physician with fellowship training in body imaging. My role in the care of patients at Memorial Sloan Kettering involves interpretation of positron emission tomography (PET), computed tomography (CT), ultrasound, and general molecular imaging. I aid in the diagnosis, staging, and follow-up evaluation of patients during treatment. I am also involved in teaching, multidisciplinary research, and multidisciplinary conferences. I am an active member of several professional organizations including American College of Radiology, American Roentgen Ray Society, Radiological Society of North America, and Society of Nuclear Medicine.  I currently participate in several clinical trials evaluating treatment approaches for breast, prostate, gynecologic cancers, and lymphomas.

I am involved in the expansion of Memorial Sloan Kettering’s services to our Long Island patients at our regional facility in Commack, New York.  Since we started providing PET/CT services at Commack in spring 2011, I have participated in performing and interpreting PET/CT exams for our patients at that facility. I am also involved in CT and ultrasound at our Manhattan and Commack sites and provide ultrasound-guided thyroid biopsies at the main campus in Manhattan.


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

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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.