Westamerica Bank, Middletown Branch Basic Info Reviews Routing Numbers Map & Direction Name: Westamerica Bank, Middletown Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 21058 Calistoga Road Middletown, California 95461 Lake County View other branches Phone: 707-987-8650 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121137001YN121140218YY121141000YN121141615YN From: To:
