I had my port put in my a surgeon (can't remember exactly what type of surgeon). I told my neuro I wanted a port and he referred me to the correct doctor. As far as being invasive, it was done in the doctors office under a very light anesthesia (I was awake for most of the procedure). They used lidocaine to deaden the incision site and from there on, it was fairly easy. It hurt worse when I had a PIK line installed in my arm when I was in ICU. They used lidocaine for that also.

Good luck with whatever you chose.