--- title: "ME Medicaid" slug: "me-medicaid" updated: 2026-04-07T17:25:50Z published: 2026-04-07T17:25:50Z canonical: "docs.claim.md/me-medicaid" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.claim.md/llms.txt > Use this file to discover all available pages before exploring further. # ME Medicaid The ME Medicaid payer ID is MEMCD. When sending secondary claims to ME Medicaid, use the appropriate unique identifier to ensure accurate claim submission and processing. This helps streamline reimbursements and maintain compliance with Maine Medicaid billing requirements. For Maine Medicaid, the "Service Location" ID (or Facility ID) in the Facility block 32 ([2310C](https://docs.claim.md/docs/professional-claim-form-overview#facility-id)) must be an alphanumeric value formatted as "xxxx-xxx" with a dash. ![](https://cdn.document360.io/367e6528-88da-4443-9da1-fcdd7e6d4d49/Images/Documentation/image-1738337663167.png) ## Inquiries for Maine Medicaid For more details on Maine Medicaid 837P protocols, please refer to [this companion guide](https://mainecare.maine.gov/Claim%20Submission%20Manuals/EDI%205010%20Companion%20%20Guides/ME_Care_837_Professional_CompanGuide_v13.0_20230316.pdf). For more in-depth inquiries, please refer to the contact information here: [MaineCare Contact](https://mainecare.maine.gov/SitePages/Contact-US.aspx).