Since devolution, the four UK nations—England, Scotland, Wales, and Northern...

https://blogfreely.net/gertonmhvf/how-do-i-check-if-a-specialist-provider-is-legit-in-the-uk

Since devolution, the four UK nations—England, Scotland, Wales, and Northern Ireland—each manage their own healthcare systems. This means access to treatments and waiting times can differ depending on where you live, sometimes called a postcode lottery