David Hsia, MD is a Professor at the David Geffen School of Medicine at UCLA. He conducts clinical research in pulmonary medicine with a focus on interventional pulmonology, lung cancer, and COPD. Dr. Hsia received his M.D. from the Keck School of Medicine at USC, and did his Internal Medicine residency training at St. Mary Medical Center, Pulmonary/Critical Care fellowship at Harbor-UCLA Medical Center, and Interventional Pulmonology fellowship at National Jewish Health.