But that's entirely dependent on the data - if you read the article, you'll see that the author is pointing out how different datasets are reporting different values for the same healthcare service. A correct, properly labeled example is just that - a document where values are accurate rather than misreported.

If you want to get a sense of what a correct, properly labeled example might look like, you should visit the CMS's guidance [1]. Health insurers should be providing documents that follow the format described there, and most importantly, reporting values that are accurate.

[1] https://github.com/CMSgov/price-transparency-guide