There is a group that I go to in Carmel. They also have an office in Manhatten. They are the ENT and Allergy Associates. You can see their site. Dr Steven Sacks is a top thyroid surgeon through them. I know your looking for an ENDO but wanted to mention them.
I just got back from my 2nd opinion and he gave me the name of one of the best in NYC .. Dr. McConnell .. I think he is an Endo and thyroid cancer specialist.
I was warned he isn't in my insurance ... the higher they get in the city the least am't of ins (if any) they take and same goes true for "new patients".
Cheryl
Here is a good site to take a peek at:
http://www.thyroid-info.com/topdrs/newyork.htm