Professor of Regional Anesthesia & Acute Pain, Anesthesia. St. Luke’s & Roosevelt Hospitals, New York, NY 1996-2014.
Anesthesia Consultant Ziekenhuis Oost-Limburg, Genk, Belgium 2015- present
Founder and Director of NYSORA (The New York School of Regional Anesthesia): the biggest school for teaching Regional Anesthesia in the world.
Director, NAICE (North American Institute for Continuous Education).