Dr Muir is an Oral and Maxillofacial Surgeon, with special interests in dentoalveolar surgery and oral pathology. He holds of Bachelor of Science (Queensland), Master of Dental Surgery (Adelaide), Fellowship in Dental Surgery of the Royal College of Surgeons (England), Fellowship in Royal Australasian College of Dental Surgeons and a Diploma in Oral Surgery (RACDS). Prior to Dr Muir going into specialist private practice and becoming a Visiting Medical Practitioner at The Wesley Hospital in 1981 he spent many years gaining experience in hospitals across Australia and internationally.
Dr Muir's memberships in professional organisations include: Australian and New Zealand Association of Oral and Maxillofacial Surgeons, British Association of Oral and Maxillofacial Surgeons, Royal Australasian College of Dental Surgeons, Royal College of Surgeons of England, Australian Dental Association.