A graduate of the Melbourne Veterinary School (1989), Stewart is an Associate Professor (Small Animal Surgery) in the Faculty of Science at the University of Melbourne and also works in private specialty practice at Southpaws Specialty Surgery and Referral Hospital in Melbourne.
After several years in mixed dairy cattle and small animal practice in Victoria, he moved to Hong Kong and worked there for the next 10 years. During this time, he developed a broad range of surgical experience and completed the ANZCVSC Membership examination in small animal surgery.
He moved to Fort Collins, CO, USA in 2003 and completed an ACVS Residency training program in Small Animal Surgery and a Fellowship in Surgical Oncology at Colorado State University (CSU). Stewart became a Diplomate of The American College of Veterinary Surgeons (ACVS) in 2007 and was an Assistant Professor faculty member at CSU.

He returned to Melbourne and joined the University of Melbourne in 2012. He is a registered specialist in small animal surgery and the author of over 40 peer-reviewed scientific publications and several book chapters.

Stewart’s primary clinical interests are in the fields of surgical oncology, minimally invasive surgery and interventional radiology as well as orthopaedics and soft tissue surgery. He enjoys teaching surgery to DVM students and residents and regularly presents continuing education lectures and workshops to veterinarians.