Dr. Lefor graduated from Oregon Health & Science University (OHSU). He later completed his internship and residency in internal medicine at Virginia Mason Medical Center in Seattle. Dr. Lefor finished his pulmonary, critical care and sleep medicine fellowship at the University of Utah. Currently, he focuses on asthma, COPD and sleep disorders at The Oregon Clinic - Pulmonary, Critical Care & Sleep Medicine. Dr. Lefor is the Medical Director for The Oregon Clinic Sleep Laboratory. He is board certified in Critical Care Medicine, Internal Medicine, Pulmonary Medicine and Sleep Medicine.