The Suffolk County National Bank of Riverhead, Center Moriches Branch Basic Info Reviews Routing Numbers Map & Direction Name: The Suffolk County National Bank of Riverhead, Center Moriches Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 502 Montauk Highway Center Moriches, New York 11934 Suffolk County View other branches Phone: 631-878-8800 Please enable JavaScript to view the comments powered by Disqus. From: To: