Dr Marcus Dreosti

  • BSc, Hons LLB, MBBS (Hons) FRANZCR
  • Radiation Oncologist
  • Spoken languages English


My aim is to bring the highest quality of evidence based individualised care to every patient, supporting them on their cancer journey

Special clinical interests include breast, head and neck, prostate, gastrointestinal & gynaecological.

Dr Dreosti graduated with Honours degrees in both Law and Medicine and undertook specialist training in Radiation Oncology at St Vincent’s Hospital, Sydney and the Royal Adelaide Hospital. He completed Clinical Fellowships in Singapore and Darwin before returning to Sydney as a Staff Specialist at the Liverpool and Macarthur Cancer Centres, a large sub-specialised tertiary cancer department.

Dr Dreosti then moved home to Adelaide where he is now a Senior Radiation Oncologist at Genesis Care. He has been appointed a member of the National Clinical Leadership Team for GenesisCare Oncology Australia with responsibility to oversee that the highest quality of radiotherapy is delivered throughout the network in keeping with national protocols with a focus on standardisation and quality assurance.

He is a frequent presenter at meetings, is involved in clinical trials in breast, head and neck and prostate cancer and is an examiner for the Royal Australasian College of Radiologists for the final examinations in radiation oncology.

Awards received

  • RANZCR Denise Lonergan Educational Service Award

Research interests

Dr Dreosti is engaged in external clinical trials across different tumour types for eligible patients. Significant internal focus on collection of standardised data to facilitate audit and peer review to drive treatment quality.

Professional memberships

  • ASBD