Florette K. Gray Hazard

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.

Dr. Clark is a board-certified, fellowship-trained cardiologist with the Adult Congenital Heart Program at Stanford Health Care. He is also a clinical assistant professor with dual appointments in the Division of Cardiovascular Medicine, Department of Medicine and the Division of Cardiology, Department of Pediatrics at Stanford University School of Medicine. Dr. Clark specializes in the diagnosis and treatment of adult congenital heart disease (ACHD) and the management of congenital and acquired heart disease in children. His clinical focus involves the combined use of cardiac magnetic resonance (CMR) and other imaging techniques to evaluate patients with known or suspected cardiovascular disease.

Dr. Roham Zamanian specializes in the treatment of pulmonary hypertension, right heart failure, and pulmonary embolism. He has more than 13 years of sub-specialty experience in pulmonary vascular diseases. Dr. Zamanian is considered one of the leading national experts in clinical trials and drug development for pulmonary hypertension.