• Effective Monday, March 17th, MassHealth will re-direct all POSC and point-to-point transactions received from MassHealth Providers to POSC AWS location.
• The POSC URL is changing. After the migration to AWS is complete, please update your bookmarked POSC URL, as the redirect will only be available for a limited time. Use the following URL to access the POSC: https://mmis-portal.ehs.state.ma.us/EHSProviderPortal
• If your organization requires a modification to your network to facilitate access to MassHealth’s AWS, please use the following IP addresses. There are two to support redundancy:
  • 15.197.248.41 and 35.71.150.175.
• Providers that utilize MassHealth’s point-to-point connectivity method do not need to make any modifications to the existing bookmarked URL.

EHS Helpdesk - During Business Hours (Mon-Fri 6:00AM to Midnight, Saturday & Sunday 9AM-5PM) at (617) 994-5050
EHS Helpdesk - After hours, Weekends & Holidays: 617-483-4000