Because before there were surgeons the job had been done by barbers, who were not medically trained.
A GP is called doctorA Specialist is called MisterAnswer A specialist surgeon* is called mister, at least in Britain, Australia and NZ. All other medical specialists are called doctor. This dates back to barber-surgeons in the Royal Navy, who were not officers so their salutation "mister" elevated them above most of the crew and made them "honorary officers".*A specialist surgeon (orthopaedic, thoracic, cardio-vascular etc) in these countries has to be a member of the country's College of Surgeons (i.e Fellow of the Royal College of Surgeons (FRCS), FRACS, FRNZCS).
Mister Tom's wife is called Rachel because that is her name. The story is called Goodnight Mister Tom and Rachel actually dies after giving birth.
A group of veterinary surgeons is called a College of veterinary surgeons. If you have many groups of veterinary surgeons, they are Colleges.
rachel
Mister Mister or a girl called K Lee
A mister who rhymes with stooge is called rouge.
gastroenterologists
1. Moskito 2. Mister Sax 3. Mister Stone 4. Space Mama 5. Mister Skop 6. Mister Dark
They can be called an OR nurse or circulator.
Mister
scalpel
In Britain, when a doctor becomes a surgeon, they become a fellow of the Royal Academy of Surgeons (and use the initials FRCS after their names), and they revert to the title "Mister"