Each MassHealth provider must notify the MassHealth agency prior to or no later than the date of the change. Failure to do so constitutes a breach of the provider contract which may be subject to fines or termination. See the regulations at 130 CMR 450.223(B):
Providers can report their change in one of two ways
- Update request on the Provider Online Service Center (POSC). Changes made via the POSC may still require the submission of a paper document.
- Submit a Provider Change of Address Form.
Change of Address Provider Requirements by Provider Type
To understand what documents are needed for certain types of address changes, please refer to the Change of Address Provider Requirements document below.
Additional Resources for
Massachusetts Substitute W-9 and Provider Change of Address Forms
Additional Resources for
Open DOCX file, 37.84 KB, for
Massachusetts Substitute W-9 Form
(DOCX 37.84 KB)
For MassHealth LTSS Providers
Log in to the MassHealth LTSS Provider Portal.
or
Call the MassHealth LTSS Provider Service Center at (844) 368-5184.