Radiology Partners and IDR exposure

Radiology Partners and its affiliates accounted for 28% of all federal independent dispute resolution cases filed in 2023 and 2024, according to a new analysis built on Centers for Medicare & Medicaid Services data. (cms.gov, insights.wchsb.com) Independent dispute resolution is the No Surprises Act’s arbitration system for out-of-network payment fights. After a 30-business-day negotiation period, a provider or insurer can ask a certified arbiter to pick one payment offer, and the losing side must pay within 30 calendar days. (cms.gov) The federal portal opened on April 15, 2022, and case volume has run far above the government’s original expectations. CMS said parties filed 1.2 million new disputes in the first half of 2025 alone, bringing the running total to 3.4 million disputes from 2022 through June 2025. (cms.gov, healthaffairs.org) CMS publishes quarterly tables naming the top initiating parties, and those tables now cover calendar years 2023 and 2024. A March 2026 Health Affairs analysis said four provider groups or representatives — HaloMD, TeamHealth, Radiology Partners, and SCP Health — initiated most disputes in early 2025. (cms.gov, healthaffairs.org) That concentration has moved from policy reports into court fights. Aetna sued Radiology Partners in federal court on December 23, 2024, alleging the company’s Florida radiologists inflated prices and flooded the arbitration system with claims that should have been billed under existing in-network contracts. (courtlistener.com, statnews.com) A WCH analysis published April 22, 2026, said a federal judge dismissed Aetna’s fraud suit and that another insurer case was dismissed days earlier on similar jurisdictional grounds. The piece said the rulings push No Surprises Act payment fights back into the statute’s own review channels instead of broader fraud litigation. (insights.wchsb.com, courtlistener.com) Insurers and employer-plan groups have used the dispute surge to argue the system is being misused. AHIP and the Blue Cross Blue Shield Association said on October 24, 2025, that nearly 40% of 2024 disputes were identified by health plans as ineligible for federal arbitration. (ahip.org) Providers and some policy analysts have argued the picture is more complicated, especially in radiology and emergency staffing, where out-of-network conflicts can be common and payment benchmarks can lag market rates. Health Affairs wrote in 2024 that Congress chose arbitration over a fixed benchmark and that some radiology practices say they cannot afford to challenge every underpaid claim. (healthaffairs.org) For Radiology Partners, the exposure is now numerical as well as legal: a company linked to more than a quarter of all 2023 and 2024 federal IDR disputes will keep showing up in payer contract talks, court dockets, and CMS data releases. (insights.wchsb.com, cms.gov)