Hi-
if you want to go all the way to Manhattan- Canine Styles on Lex and like 61st? is Excellent.
i used to live in NYC and used Karen's for people and Pets- Jonathan- from the runner up from that show that was looking for the best groomer- can't remember the name was absolutely awsome and soo nice as well.
but they have closed and i belive that Canine style took over their store- or something to that nature.
Anyway...i used them a few times when i lived in NYC for my Chloe and a few years ago when i was visiting. SO...they are VERY experienced w/ yorkies, have been in business it seems like forever (which says something) and will do exactly what you would like- it's worth the trip and the $$- some place might be less exspensive- but this is worth it. where i moved they did not know how to tip her ears, would use a razor etc....
try them!! good luck. i belive they have several locations now. nbut i always used the Lexington one by Bloomies
i got her a puppy cut- b/c i didn't know when i would be back- and she looked soo cute. i can't even remember now what the very small problem i had with something i felt should be cut a little differently on her face and they are so gracious about fixing it immediately- they really want you to be happy.
good luck!