Spotlight on PTAC: Strengthening the Data Foundation Needed for True Patient Empowerment
A National Focus on Patient and Data Empowerment The Physician-Focused Payment Model Technical Advisory Committee (PTAC) centered the agenda of its recent public meeting on a unifying theme: how data and health IT can transparently empower consumers and better support providers. PTAC’s role as an advisory body to HHS positions it uniquely to surface the structural challenges preventing patients from fully benefiting from digital tools, coordinated […]
CMS Is Pushing the Interoperability Envelope
By Mark Scrimshire, Chief Interoperability Officer, Onyx CMS hosted a special Health Tech Ecosystem Connectathon last week in Washington, DC — a one-day event that brought together nearly 300 participants from across payers, providers, vendors, federal agencies, and standards groups. The size and composition of the crowd made one thing clear: CMS isn’t just regulating interoperability. They are accelerating the ecosystem needed to make it […]
What WEDI’s Latest CMS-0057 Survey Really Tells Us About Industry Readiness

By Mark Scrimshire, Chief Interoperability Officer, Onyx WEDI’s newest CMS-0057 survey (Nov 2025) provides an important snapshot of where payers and providers stand as the industry prepares for the January 2026 and January 2027 milestones. The results show that progress is underway, but they also reveal places where uncertainty about scope and sequencing is slowing planning. Across the […]
The Real Meaning of “Intra-Enterprise” in Healthcare: Why Payers Can’t Go It Alone Without Standards
By Mark Scrimshire, Chief Interoperability Officer, Onyx There’s been lively discussion on LinkedIn lately about whether healthcare standards like FHIR and SMART-on-FHIR do more harm than good inside a single organization. Brendan Keeler raised a fair question: if standards are meant to connect systems between organizations, do they actually slow down innovation within them? […]
CMS-0057 Readiness: Challenges We’re Seeing and How Health Plans Can Move Forward
By Mark Scrimshire, Chief Interoperability & Security Officer, Onyx Health; Co-Chair, HL7 Financial Management Work Group; active contributor to WEDI The reality today By January 1, 2027, health plans are expected to have APIs live across Patient Access, Provider Access, Payer-to-Payer, and electronic Prior Authorization (ePA). Earlier this year, WEDI’s baseline survey found that 43 […]
A Day in the Life of CMS-0057: What It Means for Members, Providers, and Health Plans
CMS-0057, the Interoperability and Prior Authorization Final Rule, introduces four APIs that will shape how health data moves across the ecosystem: Payer-to-Payer Data Exchange – At the member’s request, securely transfer up to 5 years of their data when they switch plans. Provider Access – Give in-network providers access to a member’s data. Patient Access […]
Practical Approaches to CMS-0057 Compliance: Starting Strong and Staying on Track
The January 2027 CMS-0057 deadline is fast approaching. Some health plans are deep into execution, others are running pilots, and many haven’t yet made key decisions. No matter where you are, one thing is certain: the runway is shrinking, and the stakes are high. At Onyx, we’ve already taken customers live on CMS-aligned APIs and […]
Inside the Onyx CMS-0057 Playbooks

From Mandate to Measurable Value The Interoperability and Prior Authorization Final Rule CMS-0057 is reshaping how payers, providers, and patients exchange health data. It builds on CMS-9115 with expanded use cases, bi-directional APIs, and higher expectations across four tracks: Payer-to-Payer, Provider Access, Patient Access, and electronic Prior Authorization (ePA). Most provisions must be live by […]
Live in Production with Claims + Clinical Data for a Large Regional Health Plan

When Claims and Clinical Data Flow Together, Gaps in Care Close At Onyx, we believe interoperability should do more than check a regulatory box. It should give payers, providers, and members the information they need to improve care. Recently, our team, in close partnership with a large regional health plan, reached a milestone we’re especially […]
Large Regional Plan Among First to Go Live with CMS-0057 Foundations, Powered by Onyx

By Naveen Chaudhary, Client Success Officer, Onyx We’re excited to share a meaningful milestone in the path toward CMS-0057 compliance: a large regional health plan, in partnership with Onyx, is now live with key foundational elements of the Final Rule—well ahead of the deadlines for full compliance. This marks one of the first real-world implementations […]