Pricing is not even nominally transparent. By law, you can get access to the chargemaster, which is the list price that nobody actually pays. If you try to get access to the negotiated price your insurance company will pay, you'll quickly discover that it's confidential up until the point where the provider actually issues a bill. Medicare pricing is a special case, but you can't get that price without being on Medicare. Also, many providers won't accept Medicare because reimbursement is meager and often unprofitable.