ONC Finalizes HTI-4 Rule: Boosting E-Prescribing with FHIR by 2028

The ASTP/ONC has finalized the HTI-4 rule to enhance electronic prescribing, real-time prescription benefits, and prior authorizations via FHIR standards in EHR systems. This mandates updates by 2028 to automate workflows, reduce administrative burdens, and improve patient access to medications. The rule promises cost savings and interoperability, though implementation challenges persist for smaller practices.
ONC Finalizes HTI-4 Rule: Boosting E-Prescribing with FHIR by 2028
Written by Jill Joy

In a move poised to reshape how healthcare providers navigate the often cumbersome world of prescriptions and approvals, the Assistant Secretary for Technology Policy and Office of the National Coordinator for Health Information Technology (ASTP/ONC) has finalized its HTI-4 rule. This regulation, formally titled “Health Data, Technology, and Interoperability: Electronic Prescribing, Real-Time Prescription Benefit and Electronic Prior Authorization,” targets inefficiencies in electronic prescribing and prior authorization processes. By mandating updates to certified electronic health record (EHR) systems, the rule aims to automate workflows that have long plagued physicians, potentially reducing administrative burdens and accelerating patient access to medications.

The HTI-4 rule builds on proposals from the earlier HTI-2 framework, incorporating standards like Fast Healthcare Interoperability Resources (FHIR) for seamless data exchange. Providers will now be able to submit prior authorizations electronically through certified EHRs, check real-time prescription benefits, and ensure prescriptions align with patients’ insurance coverage. This comes at a time when administrative hurdles contribute to delays in care, with some estimates suggesting prior authorizations alone cost the U.S. healthcare system billions annually in lost productivity.

Streamlining Prior Authorizations Through Tech Mandates

According to details outlined in a recent Healthcare Dive report, regulators emphasize that the rule will enable automation to curb paperwork overload on providers. The policy requires health IT vendors to update certification criteria, ensuring EHRs can handle electronic prior authorizations via FHIR APIs. This integration promises to cut down on fax-based submissions, a relic of outdated systems that often lead to errors and delays.

Industry insiders note that this isn’t just about compliance; it’s a strategic push toward interoperability. The rule finalizes elements from the HTI-2 proposed rule, which was pared down last year to focus on information sharing, as reported in earlier coverage by the same publication. By embedding real-time benefit checks, prescribers can view out-of-pocket costs and alternatives at the point of care, potentially steering decisions toward more affordable options and improving adherence rates.

Impact on Providers and Payers

Recent posts on X highlight growing enthusiasm among health tech advocates, with the official ASTP account announcing the rule’s finalization on July 31, 2025, touting faster prior authorizations and reduced admin burdens under hashtags like #HealthIT and #Interoperability. This sentiment aligns with broader policy shifts, including pledges from major insurers like UnitedHealthcare and Humana to reform prior authorization, as noted in X discussions around HHS Secretary Robert F. Kennedy Jr.’s initiatives.

On the payer side, the rule mandates that prescription drug plans support these electronic standards, fostering a more connected ecosystem. A blog post from the Health IT Buzz, published by ONC on July 31, 2025, explains how certified EHRs will facilitate exchanges with pharmacies and plans, creating transparency in drug costs. This could alleviate frustrations voiced by clinicians, such as the OBGYN who shared on X about the arduous process of getting approvals in 2025, underscoring the real-world stakes.

Challenges and Future Implications

Yet, implementation won’t be without hurdles. Health IT vendors must certify updates by 2028, giving a runway but also raising concerns about costs for smaller practices. Critics, drawing from analyses in HIT Consultant dated August 1, 2025, point out that while the rule advances FHIR adoption, it may not fully address disparities in rural or under-resourced areas where tech infrastructure lags.

Looking ahead, the HTI-4 rule dovetails with HHS’s broader agenda, including updates to SAFER Guides for EHR safety, as covered in April 2025 by Healthcare IT News. Experts predict this could accelerate innovations from vendors like Cohere Health and Waystar, which are adapting to slashed prior authorization requirements by insurers, per a July 26, 2025, report from PharmiWeb.com. As one X post from a health tech handle put it, this is a step toward less red tape and better outcomes, though full realization depends on stakeholder buy-in.

Economic and Patient-Centric Outcomes

Economically, the rule could yield significant savings. By enabling real-time data on drug benefits, it empowers providers to select cost-effective therapies, potentially lowering overall healthcare expenditures. Patient advocates argue this transparency will reduce surprises at the pharmacy counter, where high costs often lead to abandoned prescriptions.

In the context of 2025’s policy environment, with aggressive timelines for drug price negotiations under the MAHA Commission as discussed on X, HTI-4 positions technology as a linchpin for reform. Insiders expect ripple effects, from enhanced electronic prescribing standards to broader interoperability, ultimately fostering a more efficient, patient-focused system. While challenges remain, the rule’s emphasis on automation signals a pivotal shift, one that could redefine how care is delivered in an increasingly digital era.

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