Dr. Siu graduated from the SUNY Downstate College of Medicine. He completed his Internal Medicine residency at Brown University Rhode Island Hospital and his Gastroenterology and Hepatology fellowship at SUNY Downstate Medical Center, where he served as Chief Gastroenterology Fellow. He then completed an additional fellowship in Advanced Endoscopy at the Albert Einstein College of Medicine Montefiore Medical Center.

Dr. Siu is board certified in Internal Medicine and Gastroenterology and Hepatology. He performs upper endoscopies and colonoscopies and is proficient in the treatment of a broad range of gastrointestinal and liver diseases including GERD, hepatitis, inflammatory bowel disease (Crohn’s Disease and Ulcerative Colitis) as well as irritable bowel syndrome (IBS).

Dr. Siu has a special interest in evaluating and treating patients with gastrointestinal cancers, including pancreatic, biliary, esophageal, gastric and colon cancers. He has expertise in endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), endoscopic mucosal resection (EMR) of early gastrointestinal cancers, therapeutic stenting of gastrointestinal and pancreatobiliary diseases, and radiofrequency ablation (RFA) for Barrett's Esophagus.

Dr. Siu is an active member of the medical staffs of Morristown Memorial Hospital and Saint Barnabas Medical Center, where he is directly involved in patient care and medical education.