A new address, the same unwavering commitment to serving New England's healthcare community.
Medical Mutual Insurance Company of Maine has relocated to a new office. As part of this move, our mailing address has changed. To ensure uninterrupted communication, premium payments, and claims correspondence, please update your records.
New Address:
New Mailing & Business Address
Medical Mutual Insurance Company of Maine
East Tower, 5th Floor
100 Middle Street
Portland, ME 04101
Important Notes:
All mailed correspondence, including premium payments, should be sent to the new address.
- Our phone numbers, email addresses, and website remain the same.
- If you use automated bill-pay, please update your payment records.
- Any mail sent to our former address after December 2025 will be delayed.