but insurance companies and government medical programs regularly negotiate prices that are different and often much lower than the listed price.

No. Medicare schedules are protected by law. If Medicare has a price, that is the Medicare price. If you are contracted with Medicare, that's the price you get. Full stop.

And I have yet to see any major medical procedures or items that weren't being sold at a profit,

Well, clearly. In the United States, medicine is a for-profit industry. Medical providers are not public employees. Profits provide wages provide living expenses allow for there to be medicine.

Can you please direct me toward information that says otherwise? Or are you talking about something else?

You're replying to a comment with two links in it. Both of those links are to fee schedules. From the first link, here's an XLS of the fee schedule for hospice care in Washington State. That's what Washington State pays for hospice care. To everyone. Sunrise, sunset. Per county.

Hi. Nice to meet you. Welcome to Hubski. We aren't Reddit. Allow me to direct you to a part of my statement:

We take six different kinds of medicare plans and they all pay the fee schedule to the penny. You bill as if it's medicare, you get paid as if it's medicare.

When you call someone's personal testimony into question, and demand evidence to back them up, you are calling that person a liar. When you call that person a liar without bothering to click on the links they provided, you're indicating that you don't think enough of them to observe their evidence before you call them a liar.

And it makes them cranky.

Now - did you mean to make me cranky? Or are you just acting as if you're on Reddit?

Because in either case, kindly desist.