Standardization of pricing very evident then.
I never had a GP, believing that doctors kill you, and you are more likely to pick up a life threatening disease by visiting a surgery. Similarly I do not visit people in hospital- same premise.
However, to get regular medicals for my flying, I did join a practice. I have never been there, other than for my CAA medical. Last year, this doctor, decided he could not read my ECG, went into blind panic mode, and had me referred to a consultant cardiologist. Despite my protestations, he also informed Gatwick. I threatened to sue him, but apparently, there is some bizarre law that I could not sue him.
Anyway, the consultant found nothing wrong, then sent me an invoice for 170.00, for his time writing the letter to Gatwick.....