Independent Dispute Resolution (IDR)

Independent Dispute Resolution (IDR) is the federal arbitration process created by the No Surprises Act to resolve payment disputes between health plans and out-of-network providers for covered surprise billing situations. When a plan and a provider can't agree on what the plan should pay for an out-of-network claim covered by the No Surprises Act, either party can initiate IDR — not the patient. The patient's cost-sharing is capped at in-network levels regardless of the IDR outcome.

The IDR process works through certified IDR entities — independent arbitrators approved by CMS. Both the plan and the provider submit their proposed payment amounts and supporting rationale. The arbitrator selects one of the two offers (baseball-style arbitration — they can't split the difference), and the losing party pays the arbitration fee. The arbitrator is supposed to give weight to the Qualifying Payment Amount (QPA), which is the plan's median contracted rate for the same service in the same geographic area, as a baseline. In practice, the IDR process has been heavily litigated — providers have argued the QPA creates a systematic bias toward plan-friendly outcomes, and courts have issued conflicting rulings on how much weight arbitrators must give it. The volume of IDR disputes has been far higher than regulators anticipated, creating backlogs. For employers, IDR affects self-funded plans directly because the plan is the party to the dispute, not the carrier — and IDR outcomes affect their actual claims spend, not a premium pool.

The takeaway: IDR resolves plan-provider disputes; patients are shielded from the outcome. If you're a self-funded employer, your TPA should be managing IDR disputes on your behalf and tracking outcomes, since those payments come directly from your claims account. Ask your TPA what their IDR hit rate is and whether they're benchmarking outcomes against the QPA.