What do you give someone who has everything and a Master's Degree to affirm their knowledge? (smile)
I would give a book of wisdoms, like a book of proverbs from a foreign country. Take it from me, Masters love books! We collect them for reference!
If you would like to stay more career oriented, how about considering a stethescope that has her name engraved, a Lab coat with her name or monogram in pink or fucshia, a charm bracelet with medical charms on it? there are so many things you can get for under 75 that are nice and very thoughtful. My best gift was an oto/opthalmascope set. (both inside) it was handy, I could put it in my pocket or bag and they were always needed. Happy hunting and as I wish all of my lady friends, Shop without fear of damaging your wallet, take the money out of it and place it in your pocket, it will be more convenient! (lol, a bad joke)