Register as a MassHealth provider on the Provider Online Service Center (POSC)

Download the Data Collection Form and Registration Instructions [POSC-DC]. (MS Word format listed below)

• Submit this form to MassHealth to identify a primary user (account administrator) for your organization. The primary user creates and inactivates users’ accounts and resets password.

Once the primary user is registered, they will need to:

• Create subordinate IDs for all other users within your organization
• Authorize access for additional users in your organization, as well as business partners such as billing agencies

Primary use account

You can set up a primary user account to:

• Serve as the administrator of the account
• Provide access to more users by setting up subordinate IDs
• Link subordinate users in the POSC so they can view and submit transactions

Subordinate Access

• You must maintain subordinate access, and notify MassHealth of any change in information
• There is no limit to the number of subordinates assigned to an account
• If a primary user no longer has that role, the provider must assign a new primary user and remove the previous user's access
• The new primary user must then submit a Data Collection Form (DCF) along with a cover letter to let us know that the facility is changing primary user
• Providers cannot continue using the primary user ID of someone who is no longer employed
• Providers should audit their primary user(s) and subordinate(s) to be certain they are up-to-date