Dr. Dennis Hsu, MD, is a medical oncologist at Memorial Sloan Kettering specializing in the treatment of colorectal cancers, anal cancer, appendiceal cancer, and small bowel cancer. For general information, contact Memorial Sloan Kettering at 212-639-2000, and to make an appointment, call 800-525-2225 Monday through Friday between 8:00 AM and 6:00 PM ET.
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