How do i contact merrimack mutual fire insurance? You can contact them directly by phone at 978-475-3300. I can't find my paper bill. Can I find my bill online? View your bill online at Merrimack Mutual Fire Insurance . What types of Merrimack Mutual Fire Insurance payments does doxo process?Why choose merrimack mutual? Our company is made up of three subsidiaries—Merrimack Mutual, Cambridge Mutual, and Bay State Insurance—which means we can provide our policyholders and their independent insurance agents with access to numerous insurance solutions for almost every type of property and budget. However, there’s much more you can count on from us.How do i contact my mercury insurance agent? Your agent’s contact information can be found in the Mercury Customer Portal, or on your Proof of Insurance Card or Mercury Bill. To make a payment, log in or register your account online. If you have a question about your bill or payment, please call (800) 503 - 3724.What is membermember service at merrimack valley credit union? Member service is priority #1 at Merrimack Valley Credit Union and Bridgewater Credit Union, a pision of Merrimack Valley Credit Union! That’s why we give you 24/7 access to your account information with online banking and more. And if you need some one-on-one attention, we’re happy to help you in one of our branch locations.