Clarify the workflow before the next claim question becomes urgent.

A structured conversation about workflow readiness rather than claim submission or payer representation.

Preparation considerations for role clarity, information flow, and payer-specific source review.

The Centers for Medicare & Medicaid Services (CMS) sets December 1, 2026, as the email-verification deadline for affected users of the Health Insurance Portability and Accountability Act (HIPAA) Eligibility Transaction System (HETS). The 270/271 numbers identify the messages: 270 is an eligibility request and 271 is the response—not a claim. This change applies only to clearinghouses and vendors that submit under their own HETS Submitter ID (submitter identification number), not every provider’s Medicare enrollment or claims submissions. The monthly notices are dated October 1, November 1, and December 1, 2026. If all three consecutive notices fail delivery, HETS will suspend the affected enrollment record and reject 270 eligibility requests sent by the clearinghouse for that provider’s National Provider Identifier (NPI). The provider or supplier must update the registered email through its Medicare Administrative Contractor (MAC). If your organization uses a vendor or clearinghouse, coordinate with that submitter.

Learning Center links that help keep general workflow context separate from current payer instructions.