I only have a
Name
Decription: (this is race, approx age, any distiguished physical features; this is also basica personality or speech pattern if there is anything disctinctive about the NPC)
Role: (Role in society, be it merchant, barkeep etc; if i bothered to think up a class and level appropriate for this, i also list it here)
Location: (Since my NPC notes are lengthy and some of my NPCs do move around, I list what city/town/local they are usually found at; if it is an NPC that's on the move, I list it down as a last known location type thing)
Attitude: (this is attitude towards the PC based on default or whatever the last encounter was like. a simple friendly/hostile/professional/hostile/etc. I have to do this because I would otherwise forget if it's months in real time before the PCs run in to the NPC again)
Notes (optional): (Any other random story-related things I've thought up for the NPC, such as information they will have if the PCs ask for it, etc)
Misc (optional): (any other stat-related things I've thought up for the NPC; approrpaiate skill bonuses for their role, or feats I decided that they must have, etc and the couple ability scores that I decided are "high" "average" "low")
So that's the 5-7 things I make note of for each NPC that I have detailed. And even then, lots of that is barely a word or two.