I've never actually been seen by my GP, but each practice has its own catchment area, so it'd be useful to check which practices you're able to register with.
Check here using your postcode:
Find GP services Each practice comes up with a user rating, patient survey scores, whether they accept online bookings/prescriptions, and if they're accepting new patients.
Like I said, I've only been to my GP to register (
Miller Practice). I did ring to make an appointment, and they were able to fit me in at a convenient time within the week, and notified me via text to confirm (obviously this depends on your preferences, which you select upon registration). Unfortunately I had to cancel (also by text), as I required urgent specialist treatment.