As far as I know, the only other one is Tim Wright. He's who I'm going with - I cancelled my appointment yesterday for the initial consult with Costa.
For Tim, you need to go to a seminar first (sometimes they are booked out well ahead of time, and they only have them once a month), then there's a wait to get an appointment (though probably not June - I know it was longer to get in to see Costa than Tim). I was told Tim has a six month waiting list for surgery but apparently people who went to a recent seminar were told only one to three months.
I think the next closest would be at the Central Coast.
I assume you have private health insurance? Costa doesn't do any procedures self-pay.