Other Hospital Affiliations: St. John's Health Center Other Training & Special Interests: Sub-specialties in Pulmonology and Critical Care Medicine. Assistant Clinical Professor of Medicine, USC School of Medicine (1982-86). Dr. McGowan has been in practice for more than 30 years, board certified in Internal Medicine and Pulmonary Diseases. He has extensive experience in the treatment of hospitalized patients and was the medical director of one of the largest intensive care units in Los…