The Brief More than 500 hospitals nationwide, including 23 in Southern California, have been warned for failing to comply with federal hospital price transparency rules, according to a watchdog group Hospital Watch. Hospital Watch says hospitals should comply with existing price transparency rules so patients know the cost of care before receiving treatment. A new report says more than 500 hospitals across the country have been warned by the federal government for failing to comply with federal hospital price transparency rules. According to the watchdog group Hospital Watch, 23 hospitals in the Los Angeles area are not complying with those requirements. "If hospitals are serious about affordability, they should start by following the basic transparency rules already on the books.