Slowly.
https://www.npr.org/sections/health-shots/2021/07/02/1012317032/hospitals-have-started-posting-their-prices-online-heres-what-they-reveal
>Slowly.
Very.
Most hospitals aren't complying with a federal price transparency rule - Axios
https://www.axios.com/hospitals-price-transparency-costs-regulations-noncompliance-ebf6bd21-5709-4298-b67a-74c8a90a1ec1.html