HETS Medicare Attestation Process

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You must complete the required attestations by May 11, 2026 or you will not be able to run Original Medicare eligibility transactions.

Important Info

• CMS is moving to a new HETS trading partner management system on May 11, 2026, and will begin requiring attestations for Medicare providers in advance of that deadline (see more)
• One attestation is required per NPI that you intend to use for eligibility requests through Nirvana
• Our vendor's Trading Partner Unique ID for HETS attestations is 274B
• If you submit claims through multiple MACs, you only need to complete the attestation through a single MAC
  • You may choose any MAC through which you submit claims
• Once you have completed the required attestation(s), please inform your CSM

Enrolling in HETS

All providers and suppliers must enroll in HETS Electronic Data Interchange (EDI) to check Medicare beneficiary eligibility. You must have an EDI enrollment to submit Original Medicare claims transactions. We’re now using the same EDI enrollment process as Medicare Administrative Contractors (MACs) and Common Electronic Data Interchange (CEDI).

When you enroll, you’ll need:

• The name of the person authorized to sign on your organization’s behalf
• Your email address (and optional alternate email address)
• Your Provider Transaction Access Number (PTAN)
• Your Individual or Group NPI, whichever one you use to bill Medicare claims electronically.*
• Effective date of your relationship with your vendor or clearinghouse
• Termination date (if any) of your relationship with your vendor or clearinghouse
• Note: If you signed up for electronic claims submission using your group provider number, you must use that same group number when you sign up for the HETS EDI enrollment to check Medicare eligibility.

MACs accepting HETS EDI enrollment

Enrollment Steps

1. Create a HETS EDI enrollment with 1 MAC for which you have an electronic claims EDI enrollment
   1. Multiple vendor or clearinghouse IDs can be linked to a single MAC HETS EDI enrollment
      1. Your organization does not need to enroll separately with each MAC for which an electronic claims EDI enrollment exists
2. Read and acknowledge the HETS Rules of Behavior
3. When you enroll, CMS will ask if you allow organizations outside the U.S. (“offshore organizations”) to use your NPI
   1. Select "YES"
      1. Nirvana's Billing Operations team is based outside the US
4. Once you've completed enrollment, please confirm that you have done so with your CSM

👈 For MAC-specific instructions, see instructions in the menu to the left.