|Head of Gastroenterology Department
||New York Orange County Medical Center, U.S.A.
||2018 - to date
|Head of Department
||Department of Gastroenterology, American Hospital
||2007 - to date
|Attending Physician (Internal Medicine)
||United Hospital Center, U.S.A.
||2004 - 2006
|Assoc. Prof. (General Surgery)
||Ingalis Hospital, U.S.A.
||2002 - 2004
|Attending Physician (General Surgery)
||1999 - 2002