Hi Joe,
I am also a doctor hoping to change career. Finishing off my PPL now, after which I will do ATPL by distance learning and then build hours towards CPL and Multi-IR. Contrary to many of the posts the escape door out of medicine (particularly specialist medicine) is one way only. The medical profession does not tolerate doubt or disloyalty, so tread carefully! Good luck Joe - it is comforting to know someone else is in a similar position!