The first two hotels listed are the nearest to Warren Weaver Hall, the meeting venue.

Washington Square Hotel
103 Waverly Place
212 777-9515
Website

The Standard, East Village
Address: 25 Cooper Sq, New York, NY 10003
Phone:(212) 475-5700
Website

Club Quarters - Downtown
52 William Street
212 575-0006
Website

Club Quarters - Midtown
40 West 45th Street
212 575-0006
Website

Holiday Inn Manhattan 6th Ave - Chelsea  
Address: 125 W 26th St, New York, NY 10001
Phone:(212) 430-8500
Website