Northwestern Mutual Share: Insurance Northwestern Mutual Visit Website Request Info 875 Third Avenue, 23rd Floor New York, NY 10022 (917) 362-9629 Facebook Rep Info Map Whom to Contact Andrew Feigenbaum 875 Third Avenue, 23rd Floor New York, NY 10022 Phone: (917) 362-9629 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.