CMS sets 2026 prior‑auth timelines

The Centers for Medicare & Medicaid Services began the first 2026 compliance phase of its prior-authorization overhaul on January 1, putting physician practices on notice that payer response times, reporting rules and electronic workflows are moving onto a federal timetable. CMS finalized the underlying rule, CMS-0057-F, in January 2024, but the operational effects are now arriving in stages rather than all at once. For practices, the practical change is that prior authorization is becoming less of a back-office claims issue and more of a front-end access check tied to scheduling, intake and follow-up. Medical Economics said this week that several of the binding provisions now affecting the market run through 2026 and 2027. ### Which CMS rule is already in force, and who does it cover? CMS released the Interoperability and Prior Authorization final rule, known as CMS-0057-F, on January 17, 2024. The rule applies to Medicare Advantage organizations, state Medicaid and CHIP fee-for-service programs, Medicaid managed care plans, CHIP managed care entities, and qualified health plan issuers on the federally facilitated exchanges, according to CMS. The 2024 final rule does not regulate every commercial payer, but it reaches a large share of government-linked coverage. CMS said the rule is intended to streamline prior authorization and improve electronic exchange of health information between payers, providers and patients. ### What changed on January 1, 2026, and what still waits until 2027? January 1, 2026 marked the start of phased compliance under CMS-0057-F. (cms.gov) CMS said impacted payers generally had to begin meeting certain provisions in 2026, while the application programming interface development and enhancement requirements were deferred until at least January 1, 2027. (cms.gov) March 31, 2026 was the first public reporting deadline for some prior-authorization metrics covering the previous calendar year, according to CMS materials and industry summaries citing the rule. CMS also says impacted payers must publicly report selected prior-authorization data annually. January 1, 2027 is the date CMS ties to the biggest workflow change for providers and vendors. (cms.gov) By then, impacted payers must support the prior authorization API and related interoperability functions required under the final rule. ### How fast will payers have to answer? CMS said impacted payers must send standard prior-authorization decisions within 7 calendar days and expedited decisions within 72 hours. (cms.gov) Those timelines are one of the most concrete operational changes in the final rule and are central to how practices will track pending authorizations. Medical Economics said those deadlines are among the provisions physicians should watch through 2026 because they tighten expectations around payer processing and communication. (cms.gov) For practices, the deadlines matter only if the request is complete and routed correctly, which is why intake and scheduling workflows are getting more attention. ### Why does scheduling staff need to care now? (cms.gov) Medical Economics reported on May 19 that CMS had named 29 health systems, EHR vendors and other early adopters to test electronic prior-authorization workflows ahead of the deadline. That pilot activity puts scheduling and intake teams closer to the compliance path than many physician groups expected, because authorization status can determine whether a visit is truly ready to book. (medicaleconomics.com) CMS’s own materials describe the rule as a move toward electronic prior authorization using HL7 FHIR standards. That means EHR and revenue-cycle systems increasingly need to show whether authorization is required, whether information is missing, and whether a request is still pending before a patient arrives. ### What is CMS proposing next for drugs? (medicaleconomics.com) CMS on April 10, 2026 released a proposed rule, CMS-0062-P, that would extend many prior-authorization requirements to drugs. The agency said the proposal would require faster drug prior-authorization decisions — no later than 24 hours for urgent requests and 72 hours for standard requests — if finalized. (cms.gov) October 1, 2027 is the key date in that proposal. CMS said impacted payers would have to support three National Council for Prescription Drug Programs standards beginning then: SCRIPT, Formulary & Benefit, and Real-Time Prescription Benefit. CMS has not finalized that proposal, but the agency has published the fact sheet and rule summary for comment and review. ### What should practices watch next? (cms.gov) April 10, 2026 is the publication date of the drug proposal, and January 1, 2027 remains the main implementation date for the final rule’s API-related requirements. Practices, EHR vendors and payers now have a defined sequence: current reporting and workflow preparation in 2026, broader electronic prior-authorization requirements in 2027, and a possible October 1, 2027 expansion to drugs if CMS finalizes CMS-0062-P. (cms.gov 1) (cms.gov 2)