If you have a baby in a public system in Melbourne, you will not be able to choose your obstetrician. You can ask for an obstetrician if it is important to you, but this may not always be possible. Obstetrician services in public hospitals are free to Medicare cardholders. These professionals are fully qualified and responsible for taking care of both mother and fetus. They regularly monitor the health of mother and baby from the moment the woman first visits.
Link: https://drstevenhatzikostas.wordpress.com/2021/09/17/what-are-the-roles-and-responsibilities-of-an-obstetrician/