Cornell University College of Engineering (BSE 1974)
Cornell University College of Medicine (MD 1978)
The New York Hospital-General Surgery Residency (1978-1983)
The Brigham & Women's Hospital Cardiothoracic Residency (1983-1985)
The Children's Hospital of Boston-Cardiac Surgery Chief Residency (1984-1985)
The Weill Cornell College of Medicine-Professor of TCV Surgery & Pediatrics (1985-1996)
The Albert Einstein College of Medicine- Professor & Chair CT Surgery (1996-2005)
Albert Einstein College of Medicine - Professor of CT Surgery (1995-2005)
The Univ Toledo Dean School of Medicine (2005-2014)
The Univ Toledo Professor of Surgery & Public Health (2005-2013)
The Univ Toledo Chancellor & Executive VP of Health Affairs (2006-2014)
The University of Nebraska Medical Center - Chancellor (2014-)
The University of Nebraska Medical Center - Professor of Surgery (2014-)
Board Service ( STS, LCME, AHA, ACGME, CTSNET, others)
Health Care Policy
Health Care System Integration & Design
CT Surgery Educational Internet Applications
Postgraduate Education
CT Surgery Curriculum, Teaching & Outcomes
Cardiothoracic Database Construction
Valvular Reconstruction in Children & Adults
Cerebral Function Following Cardiac Surgery
Pediatric Cardiac Surgery
Adult Cardiothoracic Surgery
Neurocognitive Function & Cardiac Surgery