@User6007000
YABU, it's none of your business. People CAN register out of their 'catchment' area these days, and thank GOD for that!
My DD moved into a house with her boyfriend 2 years ago, and moved surgeries, (to the one half a mile from her,) and it was, by a country mile, the worst medical practice ever. (She moved because her other practice was 15 miles away, so she thought it made more sense to move.)
She couldn't make a routine appointment, nobody answered the phone, and after 5 minutes of it ringing, it cut off and went dead, and if you went IN to book an appointment, they said 'you need to ring!' It was vile. She was in tears as she needed an appointment urgently.
So I rang around for her, and found a surgery just 2 miles from her who took people out of the area, and happily took her on..She never looked back.
My doctor is 5 miles away in a little market town. People from villages up to 9 or 10 miles away are registered there.
Unless people very closeby are being turned away, YABVVU.