Private health patients on Brisbane's northside are out of pocket up to three times more for procedures than those living on the south side of the river, government data shows.

The federal government's new $7.2 million fee transparency website enables private patients to search for the average out-of-pocket cost for procedures in their area.

A Brisbane Times analysis of the 62 procedures listed on the Medical Cost Finder website shows the gap is higher on the northside for 58 per cent of treatments. Credit:Glenn Hunt

A Brisbane Times analysis of the 62 procedures listed on the website reveals the average gap is usually higher if you see a specialist on the northside.

The out-of-pocket cost is the gap between the fee charged by a specialist and the Medicare benefit plus private health insurance benefit.