Joseph Warren Mangan 271 North Ave Ste 610 New Rochelle, New York, 10801 Phone: 914-576-7630 Company Name: O'connor & Mangan PC Lawyer Category: Labor & Employment Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations New Rochelle 271 North Ave Ste 610 New Rochelle, New York 10801 Claim/Edit Listing