mBank, Stephenson Branch Basic Info Reviews Routing Numbers Map & Direction Name: mBank, Stephenson Branch Main Office: No Service: Full Service Brick and Mortar Office Location: S 216 Menominee St Stephenson, Michigan 49887 Menominee County View other branches Phone: 906-753-2225 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer075909589YN091101316YN091102807YY091505093YN From: To: