The First Private Teaching Hospital in South Africa, Johannesburg

Dr Mariza Tunmer

Dr Mariza Tunmer

MBChB (UP); FC Rad Onc (SA)

Dr Tunmer is a Specialist Radiation Oncologist practicing at the WITS University Donald Gordon Medical Centre, Johannesburg, South Africa. She completed her undergraduate medical training at The University of Pretoria. Following internship and community service Dr Tunmer worked as a medical officer at the Charlotte Maxeke Johannesburg Academic Hospital in Johannesburg, rotating through the Trauma Unit, Trauma ICU and Medical Casualty. She also worked in various Casualty departments at private hospitals. In 2008 she joined the Medical Oncology Unit at CMJAH as a medical officer, before starting her specialist training in the Department of Radiation Oncology in 2009. She completed her training in 2012 and thereafter was employed as a Consultant Specialist Radiation Oncologist at CMJAH until 2014, before joining the WDGMC in full time private practice. She has remained involved in the teaching of registrars through WITS and is an examiner for the College of Medicine of South Africa as well as a member of the College Council of the Fellowship of Radiation Oncologists. She currently serves as the President of SASCRO (South African Society of Clinical and Radiation Oncologists) as well as the Secretary of BIGOSA (Breast Interest Group of Southern Africa). A large proportion of Dr Tunmer's practice includes the management of patients with GIT malignancies, GUT malignancies, breast cancer, head and neck cancer & skin cancer. She regularly attends Multi-Disciplinary Team meetings where challenging cases are discussed. Articles featuring Dr Tunmer: • A pilot course for training-in-context in statistics and research methods: radiation oncology - Read • A successful clinical pilot registry of four radiation oncology practices in Africa and Ontario (The Central African Journal of Medicine) - Read

Clinical Focus

  • Radiation Of Cancers And Relevant Benign Conditions
  • Radical Radiation Treatment
  • Palliation


  • • External Beam Radiotherapy
  • Brachytherapy
  • Stereotactic Radiotherapy


  • Radiation Oncologist