Dr Yvonne Zissiadis

  • Radiation Oncologist
  • Spoken languages English, Greek


I believe in finding a positive experience in the journey for patients. Maintaining a good quality of life & positive outlook makes a difference.

Special clinical interests in breast, gastrointestinal cancers and haematology

Yvonne completed her general medical training in Western Australia before moving east to the Peter MacCallum Cancer Institute in Victoria to complete her training in radiation oncology. The offer of a fellowship in breast cancer at Westmead Hospital saw her move to Sydney, and this was followed by a position as a consultant radiation oncologist at the Prince of Wales Hospital in Randwick. In 1999, Yvonne moved to Boston for a clinical fellowship at the renowned Massachusetts General Hospital. On her return to Perth, she began working as a consultant radiation oncologist and joined GenesisCare in 2011.

Yvonne is Vice-President (& Past President) of the Australasian Society for Breast Disease and the Oceania Representative of the Senologic International Society. She is conjoint lecturer at ECU and UWA and Chair of the Australian GenesisCare Breast Tumour Reference Group.  She also maintains activity with RANZCR.

Yvonne has a strong interest in clinical research and is an advocate for cancer patients. She has been involved in or written over ten published articles, predominantly on pancreatic or breast cancer.

Did you know?

When not at work, Yvonne loves to spend time with her husband and two children. She enjoys family activities, travelling, going to the cinema and cooking. She’s well known amongst her family and friends for her desserts and takes frequent requests for chocolate brownies.


  • Fiona Stanley Hospital
  • Hollywood Medical Centre
  • Joondalup
  • Mount Hospital
  • Wembley

Clinical interests

While Yvonne treats predominantly breast, lower gastro-intestinal, upper gastro-intestinal and haematological cancers, she is also interested in patient satisfaction, the impact of exercise on cancer patients, and how a patient’s cancer journey can be improved through treatment.

Professional memberships

  • Trans Tasman Radiation Oncology Group (TROG)
  • American Society for Radiation Oncology (ASTRO)
  • European Society for Radiotherapy and Oncology (ESTRO)
  • Australasian Gastro-Intestinal Trials Group (AGITG)
  • International Lymphoma Radiation Oncology Group (ILROG)
  • Australian Society of Breast Disease (ASBD)