• VS, Department of Neurology, Brigham & Women’s Hospital, Boston, MA
• Chief , Brigham & Women’s Faulkner Hospital, Boston, MA
• Chief ,South Shore Hospital, Weymouth, MA
• consultant physician , Division of Hematology & Oncology ,Dana-Farber Cancer Institute, Boston, MA
• Chief , Center of Sleep Medicine,St. Paul Lung Clinic, St. Paul, MN