The State Organization Index provides an alphabetical listing of government organizations, including commissions, departments, and bureaus.
Top-requested sites to log in to services provided by the state
The Eligibility Verification System is available through the Provider Online Service Center (POSC). EVS provides easy access to current and complete member eligibility information on the date or date range in which services are provided. It is available 24 hours a day, seven days a week. If you do not verify a member's eligibility before providing services, you might not be paid for those services.
Eligibility verifications though POSC can be performed via Direct Data Entry (DDE) for a single member verification or via Batch for checking multiple member verifications at the same time.
MassHealth providers and vendors submitting transactions in conformance with Phase I CORE 155: Eligibility and Benefits Batch Response Time Rules, and in accordance with HIPAA ASC X12 and MassHealth policy, must follow these submission guidelines to ensure timely and efficient processing of transactions.
It is important that you follow these file submission guidelines to ensure a timely response to your file submission.
If you have any questions, contact us at (800) 841-2900.
Open Monday–Friday 8 a.m.–5 p.m.