When I was looking at surgeons in 2011 (had GRS in 2012), the cheapest was McGinn at $18,500 and I think Meltzer was the most expensive at about $25K (?). So that's probably still roughly the range, although I'm sure McGinn and everyone else have raised their prices a touch since then.
Most surgeons do have web sites these days, and some even list prices.
(I ended up going with Brassard, who was $18K Canadian [that ended up being around $19K US with the exchange rate]. I know for sure that he raised his rates, though.)