No bonafide relationship among billed costs, actual costs and actual payments from insurers. Medicare, i.e. CMS has better data than anywhere else, but their data is not good either. All the numbers are pulled out of a hat. In the USA, no one knows what it actually costs to provide a medical service. Mostly because of the crazy cost-shifting necessary.

Keep mending, Pat. And I second Maeve's comment, like it or not, Music Stand.