Aya Kamaya MD

Dr. Poullos is a native of Stockton California. He earned his B.S. at Santa Clara University and M.D. degree at the University of Texas Medical School at Houston, after which he did an Internal Medicine residency at the University of California-San Francisco, finishing in 2002. He stayed at UCSF as a Gastroenterology fellow until 2004. However, after a spinal cord injury, he decided to retrain in Radiology. He did his Radiology residency at Stanford University, where he also completed a fellowship In Body Imaging in 2009. Dr. Poullos is now faculty in both the departments of Radiology and Gastroenterology and Hepatology.

Christopher F. Beaulieu MD, PhD, is Professor of Radiology, Associate Chair of Education, and former Chief of Musculoskeletal Imaging at Stanford University in Palo Alto, California, USA. He received his MD degree and a PhD degree in Biological Structure from the University of Washington in Seattle, WA. He was a resident and chief resident in radiology at Duke University in Durham, NC, followed by a fellowship in Body Imaging at Stanford. He was a visiting fellow in musculoskeletal imaging (MSK) at the University of California, San Diego. His research has focused on computer graphics, computer-aided diagnosis, artificial intelligence, as well as numerous technical and clinical musculoskeletal imaging and interventional projects.

Dr. Hwang specializes in early detection of gastrointestinal malignancies including esophageal cancer, gastric (stomach) cancer, pancreatic cancer, bile duct cancer and colon cancer. Dr. Hwang performs advanced endoscopic procedures including EUS-FNA, ERCP and enteroscopy. In addition, Dr. Hwang also performs per-oral endoscopic myotomy (POEM), endoscopic mucosal resection (EMR) to resect large colorectal polyps, and endoscopic submucosal dissection (ESD) to resect early esophageal, gastric, and colorectal cancers. Dr. Hwang has both a clinical and research interest in improving the early detection of gastric cancer.