Louisiana State University-Baton Rouge (B.S. 1975)
Louisiana State University -Medical School-N.O.) (1978)
Parkland Memorial Hospital - General Surgery (1978-1983)
University of Michigan - Thoracic Surgery (1983-1985)
U. Texas-Southwestern-Dallas ; Assist Prof-Surgery (1986)
U. of Missouri-Columbia; Assist Prof- Surgery (1986-1990)
U.of Pittsburgh; Associate Prof-Surg (1990-1995)
Hahneman University- Professor of Surgery and Human Oncology 1996-2002
University of Pittsburgh; Professor of Surgery- General Thoracic Surgery 2002-2013
Ochsner Medical Center Medical Director, Ochsner Cancer Institute 2013 - 2014
Ochsner Medical Center Vice Chair, Dept. of Surgery for Cancer Services 2013 - 2014
University of Queensland School of Medicine/Ochsner Clinical School Senior Lecturer 2013 - 2014
Allegheny Health Network - Pittsburgh and Western Pennsylvania - Director of Thoracic Oncology at the Allegheny Cancer Institute - 2014 to present
Allegheny Health Network - PIttsburgh and Western Pennsylvania - Division Chief - General Thoracic Surgery 2014- 2015
Landreneau Thoracic Surgical Associates, P.C. 2016 to 2018
UPMC - (UPMC Altoona) Altoona, PA. 2018 - present