--- title: "AK Medicare Part B" slug: "ak-medicare-part-b" updated: 2026-04-07T17:09:07Z published: 2026-04-07T17:09:07Z canonical: "docs.claim.md/ak-medicare-part-b" --- > ## 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. # AK Medicare Part B ## Payer Specific Bill ID/Submitter ID This payer requires a payer assigned ID number (Payer ID 00831). This value can be sent in block 33b, bill_id Loop 2010AA, REF02, REF01=G2. This submitter ID value will be acquired during enrollment or by contacting Noridian EDISS. ![](https://cdn.document360.io/367e6528-88da-4443-9da1-fcdd7e6d4d49/Images/Documentation/image-1737136067649.png) ## Understanding Alaska Medicare Part B Submitter ID Errors If you encounter a claim rejected due to the **Submitter ID**, it may indicate that the Submitter ID used on the claim was invalid. For **Alaska** **Medicare Part B**, the Submitter ID must begin with **“AK”** followed by **five or six digits** (for example, AK*123456*). You may also receive an error message if the **Bill/Submitter ID field is left blank**. Ensure this field is completed using the correct Submitter ID format to avoid claim rejections. Below is an example of a claim rejection caused when the **Bill/Submitter ID field is left blank**: ![](https://cdn.document360.io/367e6528-88da-4443-9da1-fcdd7e6d4d49/Images/Documentation/image-1763698802738.png)