CMS HETS Attestation: Submission Guide
The Centers for Medicare & Medicaid Services (CMS) requires healthcare providers (HCPs) to attest to their relationships with medical benefit eligibility vendors who access the HIPAA Eligibility Transaction System (HETS).
This attestation helps prevent unauthorized access to the Medicare HETS, ensuring that patients’ health information (PHI) remains secure and compliant.
What You Need to Do
All HCPs with individual NPI numbers must complete the HETS attestation language by May 11, 2026 to continue using electronic eligibility vendors. This includes the vendor utilized in your practice management system for eligibility and AssistRx’s two vendors—Experian and Availity.
Failure to complete this process by the deadline could result in:
- Delays in AssistRx enrollment services and other support for your Medicare patients.
- Possible interruptions in therapy access for your Medicare patients.
- Interruptions for your Practice Management System’s eligibility services. Please check with your billing department to complete this attestation for your eligibility vendor if it is different from Experian or Availity.
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(s) and practice NPI(s)
- Your provider(s) PTAN and practice PTAN(s)
- Termination date (if any) of your relationship with your vendor or clearinghouse
How to Complete the Attestation
Find your Medicare Administrative Contractor (MAC) region:
- View the regional map below, and click on your region to see the applicable links. Each link will open in a new tab.
- Note: your MAC may have several links covering different Medicare services—Part A, Part B, Home Health and Hospice, etc. Please complete the attestation(s) for which you bill under.
- Complete a HETS EDI Enrollment form for each vendor using their unique IDs (UID):
- Experian UID: 6EQK
- Availity UID: QLUU
JF
J5 WPS
J6 NGS
J8 WPS
J15 CGS
CGS Part A:
https://www.cgsmedicare.com/parta/edi/enrollment.html
CGS Part B:
https://www.cgsmedicare.com/hetsediweb/home/authorization?mac=j15partb
CGS Home Health and Hospice:
https://www.cgsmedicare.com/hhh/edi/enrollment.html
JE Noridian
Noridian EDISS:
https://connect.edissweb.com/web/guest/help
Log into your practice accounts to complete the HETS attestation
JF Noridian
Noridian EDISS:
https://connect.edissweb.com/web/guest/help
Log into your practice accounts to complete the HETS attestation
JJ Palmetto
Palmetto GBA JJ Part A:
https://www4.palmettogba.com/edi_online_enroll/initLogin.do?lob=JJA
Palmetto GBA JJ Part B:
https://www4.palmettogba.com/edi_online_enroll/initAttestationLookup.do?jurisdiction=JJ&lob=JJB
JK NGS
National Government Services Home Health and Hospice:
https://enrolledi.ngsmedicare.com/hets-attestation
JM Palmetto
Palmetto GBA JM Part A:
https://www4.palmettogba.com/edi_online_enroll/initLogin.do?lob=JMA
Palmetto GBA JM Part B:
https://www4.palmettogba.com/edi_online_enroll/initAttestationLookup.do?jurisdiction=JM&lob=JMB
Palmetto GBA JM Home Health and Hospice:
https://www4.palmettogba.com/edi_online_enroll/initLogin.do?lob=JMHHH
JN FCSO
First Coast Operations:
https://medicare.fcso.com/edi/hets-edi-enrollment
Frequently Asked Questions
Who is AssistRx?
AssistRx is a leading advanced therapy initiation and patient support solutions provider that delivers the perfect blend of technology and expertise to improve patient uptake, visibility and outcomes. Our services include medical benefit verification, and we are reaching out to avoid disruptions in providing seamless, best-in-class experiences for your Medicare patients and their caregivers.
Who are Experian and Availity?
Experian and Availity are data sources that provide secure and compliant access to PHI. AssistRx partners with them to perform benefit verifications and other support services on behalf of HCPs.
How Do Vendor UIDs Impact my AssistRx Attestation Requirements?
UIDs are tied solely to eligibility vendors. Completing the HETS attestation for Experian and/or Availity using their respective UIDs will satisfy AssistRx requirements. No separate AssistRx attestation is needed.
Who Can I Contact for Support?
For additional questions or to get support with the attestation process, please contact CMS at 1-866-324-7315 or mcare@cms.hhs.gov.
Instructions and links on this page are sourced from https://www.cms.gov/data-research/cms-information-technology/hipaa-eligibility-transaction-system-hets/hets-edi-how-enroll. Please use this link for the latest available information and guidance.