Federal IDR · Guide
Why surgical IDR awards run so far above the QPAA guide for surgical billing teams.
Surgical disputes win the largest multiples in the entire federal IDR dataset, with prevailing offers running from roughly 970 percent to over 1,700 percent of the qualifying payment amount across recent periods. Surgery and neurology together are only about 9 percent of cases, yet they recover the most per claim, while emergency and radiology crowd the low multiple lane.
What total volume hides.
If you only look at total IDR volume, you miss the real story. Emergency and radiology make up roughly two thirds of all disputes, dominated by a handful of large staffing and imaging companies. They file constantly, and they win modest multiples.
Surgery wins the biggest awards.
Surgery is the opposite. Surgery and neurology together are a small slice of cases, around 9 percent, but they win the biggest awards in the dataset. Surgical prevailing offers have run from about 970 percent to more than 1,700 percent of the QPA across recent reporting periods. Neurology disputes have topped 1,200 percent.
Why the gap is structural.
The reason is structural. The QPA leans on the plan's median contracted rate, which understates complex operative work. Arbitrators weigh complexity, training, and prior determinations, all of which favor the surgeon. The harder and rarer the procedure, the wider the gap between the plan's anchor and fair value.
Why the lane stays open.
The lane stays open because the aggregators are busy with high volume, low complexity claims, and independent surgical practices have historically absorbed underpayments rather than fight for each one. The data tells you the opportunity is real. It does not file the claims. Sydra makes filing fast enough that the highest value, least crowded lane in IDR is finally worth working at scale, which is the difference between knowing the multiples and banking them.
Common questions.
Why is surgery the highest multiple specialty?
The QPA understates complex surgical work, and arbitrators weigh complexity and training heavily. The gap between the plan's anchor and fair value is widest here.
Why do so few surgical practices file?
The volume leaders are emergency and radiology aggregators. Independent surgical practices often absorb underpayments because no one has made filing fast enough to be worth it. Sydra changes that.
This page is general information about the No Surprises Act dispute process, not legal advice. Eligibility depends on the specific plan, claim, and current federal and state rules. Confirm details for your claim before filing.
Sourced references
- 1. CMS Federal IDR Q1/Q2 2025 Public Use FileReleased January 21, 2026cms.gov/nosurprises/policies-and-resources/reports
- 2. Georgetown University CHIR · Health Affairs webinarMarch 2026 — 3.4 million disputes through June 2025; 88% win rate; median award ~4.5x in network rate
- 3. Zelis — NSA IDR Eligibility ChallengesMarch 2026 — 44% of 2024 IDR cases challenged as ineligible by non initiating party
- 4. ACEP analysis of CMS data~10% of eligible claims estimated to reach IDR arbitration
- 5. Brookings Institution NSA Arbitration DatabookApril 2026brookings.edu/articles/no-surprises-act-arbitration-databook
- 6. ACR — Providers Prevail in Vast Majority of IDR ClaimsJanuary 2026 — 88% of disputes found in provider's favor; 87% of awards exceeded QPA
- 7. No Surprises Act: Public Law 116-260, Division BB, Title I
- 8. Federal IDR regulations: 45 CFR Part 149ecfr.gov/current/title-45/subtitle-A/subchapter-F/part-149
- 9. CMS No Surprises Act overviewcms.gov/nosurprises
- 10. HHS HIPAA for professionalshhs.gov/hipaa/for-professionals
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