I bet if you logged into your health insurance portal you'd find a cost transparency tool that could give you a reasonable estimate of what a common procedure would cost.
The unfortunate truth is price doesn't really matter.
1 - Insurers have negotiated rates with providers. They don't want that information shared.
2 - There aren't that many "shoppable" procedures. Shoppable = you're going to make a conscious decision to find the best possible price. Most common were major, non-emergency surgeries like hip or knee replacements or small stuff like imaging. Once you're in the actual care "flow", its highly unlikely to tell the doctor "how much will that MRI cost me? Let me check this app to drive across town and save $20."
3 - For all the talk about consumer demand for cost transparency, Cost is low on the list when it comes to determining if/where to get care. Quality, Availability (accepting new patients, how soon can they see me), Word of Mouth (friend/family recommended), matter more. Largely because....
4 - After a certain point (i.e. once I've hit my deductible) consumers don't care about cost as long as they're in-network.
(former PM of cost transparency application)
Disclosure: I work at Amino, but I'm speaking from personal experience and not for them.
Would love to do it actually
Edited to add: Plus, reality is you can't really know until you get all the bills. How are they going to code the million different things they have to choose between?
I took my son to prompt care once because he had split the webbing between two of his toes and it looked to me like it needed stitches. The doc swabbed it clean and said he couldn't stitch it. He put some superglue on it and sent us home. Paying on the way out they wanted like $450. I said no. They called the manager and told him I wanted a payment plan. I said, no I don't. I want a reasonable bill. He told them to recode it. They said they had looked for a different code and couldn't find one. They looked again. They had a coworker look again. Eventually they recoded from a laceration to a cut or something like that. Dropped the price to $120ish.
(The superglue came off in less than 24 hours.)