This article provides a vital update for chiropractors regarding Medicare's HIPAA Eligibility Transaction System (HETS), the electronic portal used for verifying patient eligibility. While a recent deadline caused some concern, the author clarifies it does not impact claim submission or payment. Instead, the changes are critical for maintaining ongoing access to electronic eligibility verification. HETS provides essential data like deductible status and Medicare Advantage plan details. The Centers for Medicare & Medicaid Services (CMS) has implemented these changes to enhance cybersecurity and accountability. The new rules require each provider to have an active HETS EDI enrollment and to formally authorize any third-party vendors—such as clearinghouses, EHR systems, or billing services—that access HETS data on their behalf using their NPI. Previously, vendors could often perform these checks without direct provider attestation. Now, providers must be actively involved in the authorization process. Failure to comply could eventually result in an inability to verify patient eligibility electronically, leading to operational disruptions. The article strongly advises chiropractic offices to proactively contact their vendors to ensure all new enrollment and attestation requirements are met, preventing future interruptions to their workflow.