Medibank is an Australian private health insurance provider headquartered in Melbourne, Victoria, Australia. It is Australia's largest private health insurance provider, covering around 4.2 million customers in 2024. Medibank initially started as an Australian Government not-for-profit insurer in 1976, before becoming for-profit in 2009 under the Rudd Government and privatised by the Abbott government in 2014. Medibank now operates as a publicly-listed company on the Australian Securities Exchange. Wikipedia