I found this article when I was surfing yesterday:

More choice for mums-to-be but a penalty on IVF | The Daily Telegraph

The Government reform to the Medicare safety net, capping benefits to those patients who access IVF and also obstetric services.

From July 2010, a patient whose doctor or IVF provider charges more than $5000 per cycle will not receive the rebate, which covers 80 per cent of out-of-pocket expenses.
I also saw a lot of the articles you've already got posted...

Wow, I can't believe how much some clinics charge. Do you pay $4-5000 to the clinic AND then the clinic also bulkbills the same again to Medicare? Did I read that right?

I go to QFG in Brisbane and we pay $6300 upfront, then the anaesthetist and my Dr's fees after (another $500-ish). We pay upfront then take the receipts to Medicare, the clinic doesn't bill anything to Medicare directly.

Just claimed my March cycle and it was:
13209 162.20 (planning/management - my Dr's fee - 143.20 rebate with safety net)
13200 6,263.85 (ART/IVF - 4,477.60 rebate with partial safety net)
13221H 36.15 (semen prep - 36.15 rebate)

Now to start again... Third time lucky right?