I'm not making any suggestions about your case. I'm just curious based on your experience, would it be plausible for someone in England to just sign up with a GP in Wales if they wanted to if the treatment offered was different than England (or the reverse)?

I'm not suggesting that anyone commits fraud or suggesting that this was a practical solution in your case. I'm just curious if that is illegal or how that is enforced.

All I could find was this: https://www.england.nhs.uk/ourwork/part-rel/x-border-health/...