Any employed NHS Health Care professional regardless of profession will be qualified with a minimum BSc with professional exams, they cannot be employed otherwise. Most, more senior staff have other qualifications pertinent to their professional standards (Band 6+) then Masters my chum in the department I worked in has just got her PhD.
I was a Band 8 clinical Manager with all my extra professional exams plus Masters.
After all that hard work we too don't want folks sneeking on the back door, claiming they can do X.Y & Z .
My Doctor friends have worked very hard to get all there exams most Consultants now have to get a PhD to secure a post.
Newly qualified Doctors are under supervision all the time, especially by other professionals. I personally have never agreed with P A's, the ones I have encountered have been cocky.