Earlier quoted context omitted.
Otoh some medical providers like to over bill and over treat.
Yes, insurance companies deny claims, but this is mostly because they don't have the money to pay for things most of their money is spent on care in the first place: they're forced to optimize and people get hurt in the process. Providers do far more damage. UHCs profit margins are only 6%, their operating costs are extremely low[0], and if you look across G7 insurers in the US pay more than the government does in ev…
Because customer-insurer relationships are the only side of the healthcare system that most people see, they're oblivious to what are actually pass-through insurer-provider issues.
As you said, the reality is that insurers operate with pretty reasonable margins and incredibly meager per-claim overhead costs. They're stuck trying to make 2 + 1 = 2.
If the finger should be pointed at root causes in the US health system, it should be at:
- Providers overbilling (particular in certain specialties)
- Medical schools, for charging too much and under-expanding capacity
- The federal government/Congress, for failing to expand residency funding to increase supply (especially in generalist provider categories)