Dr. Oscar Estrada graduated from the University of Chicago Pritzker School of Medicine. He did a residency in internal medicine at the University of Chicago and a fellowship in pulmonary disease and critical care medicine at the UCSF. He is a board-certified pulmonologist and has about 10 years of clinical experience. Dr. Estrada currently practices at the UCLA Medical Center, Santa Monica, Kaiser Permanente San Francisco Medical Center, and California Pacific Medical Center-Davis Campus.