John has been a specialist EM physician for more than ten years at Waikato Hospital in New Zealand. He is also Chair of the New Zealand Faculty.

Having worked extensively in different EDs throughout New Zealand, Australia, and the United Kingdom, he has a firsthand knowledge of different models of care in a variety of settings, from the smallest rural to the largest tertiary hospital.

John has various other roles as an Advanced Paediatric Life Support (APLS) and Advanced and Complex Medical Emergencies (ACME) Instructor, a Police Medical Officer and an expert advisor to the Police, Coroner and Courts on a variety of forensic and medical matters.