Robert A. Lefkowitz, MD

Robert A. Lefkowitz, MD


Clinical Expertise

Gastrointestinal, Genitourinary, and Musculoskeletal Radiology

New Patient Appointments

Scheduling a visit is easy. Click below or call us to get started.

Accepted Insurance Providers

Dr. Lefkowitz 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, New York University School of Medicine


St. Luke's-Roosevelt Hospital


Memorial Sloan Kettering Cancer Center

Board Certifications

Diagnostic Radiology

I am a board-certified radiologist who specializes in sarcomas and retroperitoneal tumors, orthopedic imaging, and urologic imaging. I have been practicing radiology at MSK since 2000.

I serve on the Gastric and Mixed Tumor Service Disease Management Team. I have a particular interest in retroperitoneal and soft tissue tumors. These include retroperitoneal liposarcomas, gastrointestinal stromal tumors, myxofibrosarcomas, and desmoid tumors. Since MSK is a leader in treating sarcomas and other soft tissue tumors, I have become very familiar with many of these rare tumors.

I have participated in research projects to study these tumors and am an investigator in many related clinical trials. I am a member of the medical advisory board for the Desmoid Tumor Research Foundation. I am also the national study chair for imaging in an organization that is overseeing a phase III clinical trial of sorafenib (Nexavar®) in people with desmoid tumors.

I also have years of expertise in bone, renal, and adrenal tumors. I am a member of the Orthopedic and Urologic Disease Management Teams.

At MSK, I enjoy working with renowned surgeons and medical oncologists. I appreciate presenting cases at disease management team meetings and consulting with these doctors on CT and MRI examinations for our patients.


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. Lefkowitz’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.