Nigel qualified from RVC in 1994 and spent a short period in practice. After undertaking an Internship in the UK and a Residency in the USA, he was appointed Clinical Instructor, and subsequently Clinical Assistant Professor, of Anaesthesia at North Carolina State University, where he worked until joining DWR in 2018. He became a Diplomate of the American College of Veterinary Internal Medicine in 2004, the American College of Veterinary Anaesthesia and Analgesia in 2009 and the European College of Veterinary Anaesthesia and Analgesia in 2019.