Our Team

Practitioner Profiles

Dr Gavan White

Dr Gavan White graduated in 1980. He trained in Melbourne through the University of Melbourne. Hospital training was at the Austin Hospital, Heidelberg.Extensive experience in general practice was gained in Esperance from 1985, with him training in Obstetrics at King Edward Memorial Hospital in Perth In 1987.Dr White continued to practice in Margaret River, where he worked from 1989 until 2006.

Dr White has practiced broadly in general practice and provided all aspects of general practice, women's health, men's health, paediatric care, obstetrics, office surgery, hospital minor surgery, hospital admissions, accident and emergency and home visits.His interest in sports medicine developed early in his general practice career where it was obvious that medical school training did not cover this area well. He achieved a certificate in spinal manipulative therapy before progressing to study for a Masters degree in sports medicine.Since that time, Dr White has been providing a specialised sports medicine practice to the South West in both Margaret River as well as in Bunbury. He now provides this full time in Bunbury. He attends regular conferences and improves his skills and knowledge through study and teaching.


  • MBBS (Univ of Melb) 1980
  • FRACGP 1987
  • DipRACOG 1988
  • Grad Dip Fam Med (Monash Univ) 1992
  • Cert Manual Therapy (RACGP) 1992
  • Masters Sports Med (Univ of NSW) 2003
  • Fellow Sports Doctors Australia 2005
  • Fellow Australian Sports Medicine Federation

Dr White's major interest is in sports medicine. He has developed this interest over some time and is able to provide this service as well as draw on a wealth of general practice experience.


Dr Justin Marshall

Justin Graduated from Nottingham Medical School, England, in 2000.

He worked for 8 years in Emergency Medicine. Paediatrics, General Medicine, Anaesthetics and Intensive Care before emigrating to WA in 2008.

He then trained as a GP and completed a Graduate Certificate in Sports Medicine in 2004 and has worked at Synergy Sports Medicine since 2011.

He attended an upskilling course in Diagnostic Ultrasound at the Australian Institute of Ultrasound in 2015 and performs a range of ultrasound guided injections to complement his clinically guided injections skills where appropriate.

He is interested in seeing new and longstanding injuries to any body region but particularly enjoys diagnosis and assisting in the rehabilitation of shoulders and the sacroiliac joint.

Justin played Rugby Union until age 24 and has completed triathlons to Half Ironman distance. Various knee and shoulder injuries have led to stopping team and impact sports and he now keeps active with bush and mountain walking with his family and loves cycling in the Ferguson Valley.


Dr Susan du Plessis

Dr Susan du Plessis studied Medicine at the University of WA, graduating in 2000. She completed her hospital training at Royal Perth and Bunbury Regional Hospitals, and her General Practice Training in Bunbury and Busselton. Later she completed a Graduate Certificate in Sports Medicine from the University of Queensland.

Susan worked intermittently at Synergy Sports Medicine as a locum (relief doctor) for three years before joining the team as a permanent sports doctor in 2017.

Susan’s personal sports interests are in road cycling and mountain biking. She is the mother of two very active children, now aged 19 and 16, who are or have been involved in many sports including the winter sports of ice speed skating and snowboarding, as well as inline speed skating, gymnastics, dance, circus, swimming, basketball, soccer, volleyball and basketball.

Susan has a particular interest in injury prevention and rehabilitation, exercise-induced asthma, the role of nutrition in sports, and helping athletes understand and comply with anti-doping regulations.

Outside of sport and medicine, Susan enjoys learning foreign languages, reading literary fiction, listening to music and attending live theatre, dance and music performances.


It is our belief that correct treatment requires an accurate diagnosis. The commencement of treatment to an injury without knowing the diagnosis goes against our ideals.

Muti-disciplined approach

To enable the best form of treatment available, we utilise the services of a wide variety of like-minded health professionals with a special interest in sports medicine.


It is vitally important that you are actively involved in the decision making about your own care.


We certainly try to do nothing to people that would cause harm. Whilst some treatments will have inherent risks, there are other treatments where the risk is unacceptable.