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MIIA is a Membership Service of the Massachusetts
Municipal
Association

Contact

Our main office and lines of business are listed below. Individual staff contact information is also available to assist with any questions.

Main Address, Telephone, and Fax Numbers:

Massachusetts Interlocal Insurance Association

One Winthrop Square, 2nd Floor
Boston, MA 02110
Phone: 1-800-882-1498
Fax: (617) 426-9546
Hours of Operation: Monday – Friday, 9:00 AM – 5:00 PM (EST)


Workers' Compensation Claims Mailing Address:

MIIA Member Services

One Federal Street
Boston, MA 02110
Phone: 1-800-799-6442
Fax: (617) 753-9987


Property, Casualty, and Liability Claims Mailing Address:

MIIA Property and Casualty

15 Cabot Road
Woburn, MA 01801-1003
Phone: 1-800-222-5963
Fax: (781) 376-9907


Health and Dental Subscriber Submission of Claims:

Please note that in most cases, providers will submit your medical and dental claims for you electronically.

Blue Cross Blue Shield of Massachusetts
Claims Department

P.O. Box 9131
North Quincy, MA 02171-9131


Health and Dental Enrollment and Eligibility:

MIIA Health Benefits Trust

One Winthrop Square, 2nd Floor
Boston, MA 02110
Phone: 1-800-374-4405
Fax: (617) 542-6513
Hours of Operation: Monday – Friday, 9:00 AM – 5:00 PM (EST)


Health and Dental Premium Invoice Remittance Only:

MIIA Health Benefits Trust

P.O. Box 5329
Boston, MA 02206-5329


Property and Casualty Invoice Remittance Only:

MIIA Property and Casualty Group, Inc.

P.O. Box 5092
Boston, MA 02206-5092


Workers' Compensation Invoice Remittance Only:

MIIA Workers' Compensation Group, Inc.

P.O. Box 5795
Boston, MA 02206-5795