Dr. de Leon-Casasola was a member of the Board of Directors of the American Society of Regional Anesthesia and Pain Management (ASRA) where he served as President, and has served as the Chair of the Scientific Committee for that Society’s pain meeting. He was also a member of the Pain Medicine Committee of the American Society of Anesthesiologist (ASA) and the National Comprehensive Cancer Network, Adult Cancer Pain Panel. He served as the Chair of the Regional Anesthesia Committee of the ASA until 2010. He served as a member in the Task Force of the ASA that created the Society’s Guidelines for the treatment of Chronic Pain Management that were published in 2010 and served as the Co-Chair of the Committee drafting the Acute Pain Guidelines for the ASA, ASRA and the American Pain Society. Dr. de Leon-Casasola has been honored with many awards; the most recent ones include "Top Doctors in the US ", "Best Doctors in the US" and "100 Top Docs in Buffalo" for the last 15 years.