Live Across All Four APIs and the Full Da Vinci CRD/DTR/PAS Workflow.
Operon is the integration layer that wraps the UM, claims, member, and PA systems you already run and exposes them as one CMS-0057-F-conformant FHIR surface. Provider-Payer Test Ready in weeks. No data-layer rebuild.
January 1, 2027 Is Firm.
Federal program participation is on the line. Are you ready?
Why One Platform Can't Fix CMS-0057-F for Multi-System Payers
Real payer stacks span multiple vendors: a UM platform, a claims system, a member portal, a PA platform, EHR feeds, clearinghouses. CMS-0057-F requires you to expose one coherent FHIR surface across all of them.
WEDI's February 2026 survey identifies "delegated third parties struggling with system connectivity" as the #1 reported payer pain point.
Most CMS-0057-F vendors answer this by asking you to replace your data layer with theirs. For a multi-system payer that is a 12-to-18-month engagement, in cross-vendor coordination, on a 7-month calendar. Even when it ships, you've substituted one platform for another. The structural integration problem hasn't gone away.
Operon wraps the systems you already run. No retirements. Provider-Payer Test Ready in weeks.
The Neutral Integration Layer Above Your Existing CMS-0057-F Stack
We orchestrate what you already run into one conformant FHIR surface for your testing partners, and produce the public-reporting-ready evidence your compliance team will be asked for.
CMS-0057-F Runs on a Stack
In production, compliance is delivered by a combination of platforms, vendors, and internal tools, including UM systems, claims platforms, member portals, PA workflows, FHIR servers, integration engines, prior-payer connectors. No single component covers the whole rule. Orchestration across them is the actual work, and it's the #1 reported payer pain in WEDI's February 2026 survey.
Operon Connects What You Already Run
We sit above the stack and connect it. Operon does not replace your UM platform, claims system, member portal, PA workflow, or FHIR server. For testing engagements, we connect through standard integration patterns (HL7 v2, X12, FHIR, REST, SFTP, message queues) and orchestrate the combined output as one CMS-0057-F-conformant FHIR surface across all six WEDI-tracked surfaces on Da Vinci IG 2.0 / 2.1 / 2.2 concurrently. Per-engagement isolated tenants. Cross-system provenance on every response.
Two Outputs from One Engagement
One stable FHIR target
Provider EHRs, third-party apps, prior-payer systems. Operon is one stable FHIR target across all six APIs, not a per-vendor scavenger hunt.
A public-reporting-ready report
Every engagement ends with a public-reporting-ready report:
- Per-resource conformance evidence vs the IG, plus a CapabilityStatement diff per supported IG version.
- SLA telemetry, PAS 72-hour expedited / 7-day standard, Patient Access freshness, Payer-to-Payer round-trip, Provider Access export latency.
- Public-reporting-ready CMS metric template, denial rates, response times, decision categories.
- Cross-system provenance log, which underlying vendor answered each request, attributable in audit.
Six Surfaces. All Live Today.
The columns mirror the WEDI Interoperability Testing Directory submission template. Operon's entire scope is live today, while other directory listings publish Q-dates through 2026 and 2027. Verified 2026-05-11.
| Surface | Versions supported | Dev test | Provider-payer test | Production | Sandbox endpoint |
|---|---|---|---|---|---|
| Coverage Requirements Discovery (CRD) | 2.0.1 / 2.1.0 / 2.2.1 concurrent | Live | Live | Live | /sandbox-api/v1/cms-0057-f/crd/ |
| Document Templates and Rules (DTR) | 2.0.1 / 2.1.0 / 2.2.0 concurrent (Standard + Adaptive) | Live | Live | Live | /sandbox-api/v1/cms-0057-f/dtr/ |
| Prior Authorization Support (PAS) | 2.0.1 / 2.1.0 / 2.2.1 concurrent | Live | Live | Live | /sandbox-api/v1/cms-0057-f/pas/ |
| Patient Access API | CARIN BB IG 2.0.0 + US Core 6.1.0 + USCDI v3 | Live | Live | Live | /sandbox-api/v1/cms-0057-f/patient-access/v2.0.0/ |
| Provider Access API | Da Vinci PDex Provider Access (latest) + Bulk Data 2.0.0 | Live | Live | Live | /sandbox-api/v1/cms-0057-f/provider-access/v2.0.0/ |
| Payer-to-Payer API | Da Vinci PDex Payer-to-Payer (latest) | Live | Live | Live | /sandbox-api/v1/cms-0057-f/payer-to-payer/v2.0.0/ |
Sandbox endpoints live at https://api.operon.cloud{path}{ig-version}/ and return marked stub responses (header X-Operon-Sandbox: stub-v0) so directory readers can verify the URL resolves. Real scenario testing runs against per-engagement sandbox tenants provisioned at intake. Full per-resource capability matrices, supported profiles, and FHIR operations across IG versions are documented in the Operon CMS-0057-F Testing Spec.
The Cost and Complexity Reality
The deadline is one half of the story. Cost uncertainty, vendor sprawl, and rollout preference are the other half. They're what makes wrapping the existing stack land instead of replacing it.
Three Questions to Ask Any CMS-0057-F Vendor
Worth asking before you commit to a path. These are the trade-offs WEDI's February 2026 industry survey surfaces as the dominant readiness blockers.
Do you have 12 to 18 months to replace your data layer?
Most plans do not. Platform-replacement engagements typically run 12 to 18 months from kickoff. The deadline is January 1, 2027. Operon reaches Provider-Payer Test Ready in weeks because we wrap your existing systems instead of replacing them.
Do you want to retire UM, claims, member, or PA vendors you already pay?
Most plans do not. Operon sits in front of whichever combination you already run and exposes them as one CMS-0057-F-conformant FHIR surface. No retirements required.
Can your compliance team prove conformance without your team rebuilding what already works?
With Operon, every engagement produces a public-reporting-ready conformance and readiness report scoped to the CMS metric template, plus per-resource pass/fail evidence against the IG.
Frequently Asked Questions
Is CMS-0057-F the same as the 2020 Interoperability Final Rule?
What is a public CMS-0057-F testing portal and why does my organization need one?
Do we have to replace our UM, claims, or PA vendors to use Operon?
Which IG versions does Operon support, and can we test multiple versions in parallel?
How long is a testing window, and what do we receive?
When should we engage if the deadline is January 1, 2027?
Testing Resources
Authoritative references your team will reach for during a testing engagement.
ONC Inferno Framework
The official ONC FHIR conformance test tool for CMS-0057-F implementation guides.
Open ↗HL7 FHIR R4 Specification
Complete FHIR R4 resource definitions, search parameters, and operations. The base specification all CMS-0057-F APIs build on.
Open ↗HL7 Da Vinci Implementation Guides
PAS, CRD, DTR, PDex Provider Access, and PDex Payer-to-Payer. The normative specs Operon implements.
Open ↗WEDI CMS-0057-F Resources
WEDI's ongoing implementation resources: webinars, advisory letters, the Interoperability Testing Directory, and the implementation survey.
Open ↗Book a Call
30 minutes with someone from our team. We'll ask about the systems you already run, where you are on the CMS-0057-F calendar, and what testing you need to ship. No pitch deck, no pressure, no demo unless you ask.
Good fit if you are- A covered payer planning CMS-0057-F testing windows against your existing UM, claims, member, or PA stack.
- A provider, EHR, or third-party app vendor needing a tested payer counterparty to validate your integration.
- A clearinghouse or prior-auth intermediary in a delegated workflow that needs a published testing target.
- Anyone preparing for the January 1, 2027 deadline who wants conformance evidence, not slides.