Her areas of clinical expertise include chronic obstructive pulmonary disease, critical care medicine and Marfan syndrome. Dr. Neptune earned her M.D. from Harvard Medical School. She completed her residency and performed a fellowship in pulmonary and critical care at the University of California, San Francisco. She also performed a fellowship in genetics at Johns Hopkins. Her research interests include therapeutic strategies in Marfan syndrome; mechanisms and prevention of progression of COPD; and hepatocyte growth factor signaling in airspace homeostasis.Dr. Neptune serves on the Compliance Compensation Subcommittee for the Department of Medicine.