Notices are temporarily not available for viewing on the MMIS BaseApp. Maintenance is underway. We will notify once the view capability is restored.
We apologize for any inconvenience this may cause. Providers who have questions should contact MassHealth Customer Service at 800-841-2900 (toll-free) or by email at provider@masshealthquestions.com. MassHealth Customer Service hours of operations are Monday through Friday from 8am until 5pm EST. EHS users with questions, please contact the EHS Customer Support Center at 617-994-5050 or email eohhs-it-customerservice.hancock@mass.gov.
MMIS System Outage Notice – Today, 4/3/2026