A new federal database of hospital prices shows a massive disparity in medical costs. “Average inpatient charges for services a hospital may provide in connection with a joint replacement range from a low of $5,300 at a hospital in Ada, Oklahoma, to a high of $223,000 at a hospital in Monterey Park, California. Even within the same geographic area,” said Secretary of Health and Human Services Kathleen Sebelius, who spearheaded a new transparency initiative to reveal traditionally secretive hospital bills.