ProPublica is to the left of everyone, but this is a good report.
I agree about ProPublica
The crux of the article is about electronic devises
but the more serious concern is about the mark up of medical devices by intermediaries and insurance companies.
This would include insurance rental mark up of knee braces, hearing aids, walkers, wheelchairs, lift chairs, and a lot of other medical devices
until you run up expenses beyond your "Donut Hole", and are then personally financially responsible
for these exorbitant medical insurance expenses.
It happens !