Dr. Gregory Ahearn graduated from the Drexel University College of Medicine. He completed two fellowships in pulmonary disease and critical care medicine at Duke University Hospital, where he also did his residency. Dr. Gregory Ahearn is a pulmonologist affiliated with several medical facilities in Phoenix, Arizona, including St. Joseph's Hospital and Medical Center and HonorHealth Scottsdale Shea Medical Center. Dr. Gregory Ahearn is board certified in critical care medicine and pulmonary disease. He also has many publications and presentations on pulmonary conditions.