It's a massive system wide issue and one that is going to take a complete revamp to fix.
In theory Price Transparency is obviously a good thing. However.........................
Aside from an office visit the line item charges for doctors, facilities, exams, tests, band aids, needles, medicine, instruments, and the codes that go along with them well good luck to anyone that is looking to see those up front costs and having even have a clue what the majority of those charges are for.
I'm not saying it's fine the way it is but again until they fix cost of care it isn't going to matter showing someone what costs are up front. Aside from truly elective surgeries or tests most people aren't going to be looking at what their costs will be when they are on the table needing to get their appendix removed before it explodes.
The easiest place to start would be with drugs.
And yes the Medicare/Medicaid reimbursement rates are a massive issue. There is a reason why many rural hospitals are closing shop as they can't afford to only have Medicare patients in their beds and using their services.