OK, doctors and witch doctors like long words that serve to flim-flam the paying customers, so how about...

vicaponicboxdocs (VIS-uh-po-NIKS-BOX-DOXS) doctors who have forgone lucrative positions in high society practice because of their altruistic desire to rid the poor neighborhoods around them of unnecessary pain and suffering.

I coulda been somebody, I coulda been a contender, were it not for this godforsaken curse of vicaponicism.

(vicinage) neighborhood + (aponic) free of pain + (doc-in-a-box) self-explanatory.

[s/mw 2002]