New York Commercial Bank, Ronkonkoma Branch Basic Info Reviews Routing Numbers Map & Direction Name: New York Commercial Bank, Ronkonkoma Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3425 Veteran's Memorial Highway Ronkonkoma, New York 11779 Suffolk County View other branches Phone: 631-981-0888 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer021412114YY026007582YY026008853YY026072986YN221972250YN From: To: