Tisha Thi Thi Phan who was the operator of an optometry business in south-west Sydney has been jailed for at least three years for defrauding Medicare by more than $4 million.  He submitted almost 30,000 claims for more than 49,000 optometry services that were not actually provided to patients.

https://www.smh.com.au/national/optometry-owner-jailed-for-4-million-medicare-fraud-20181209-p50l4a.html