I am a board-certified medical oncologist who treats patients with gastrointestinal cancers. My specialization is in primary liver cancer (hepatocellular carcinoma), pancreas, gallbladder, and bile duct tumors. As part of a multidisciplinary group, my colleagues and I offer patients a team approach to treating these cancers. For general information, call Memorial Sloan Kettering at 212-639-2000, 24 hours a day, seven days a week. To make an appointment, call us at 800-525-2225, Monday through Friday between 8:30 AM and 5:30 PM ET.