There are now 10 administrators for every 1 doctor.
Since 1970, the number of physicians has increased by 2x. The number of administrative staff has increased by 38x.
If each administrator is making 100k+ - 150k+, that's significant cost.
Some of these crazy billing practices are due to the private equity buy-ups and consolidation, creating workflows and fee structures that are hostile to patients and doctors, but benefit the PE firms.
https://www.commonwealthfund.org/publications/issue-briefs/2...
Lots more data here: https://www.healthsystemtracker.org/
It's the corporations, stupid.
https://www.mckinsey.com/~/media/mckinsey/dotcom/client_serv...
I worked in healthcare and this McKinsey report (exhibit 2 on page 81) is probably the best analysis I've seen that tries to isolate where the extra money is going.
The biggest driver of higher US healthcare costs is outpatient care. And it's not just that each healthcare event is more expensive (though it is), it's that Americans get a lot more outpatient care than other OECD countries.