IDR for anesthesiologists: the anesthesia arbitration record
Which anesthesia claims qualify, what groups collected in 2025, and why consent forms never apply to your cases.
Anesthesiology was built out-of-network: patients never pick who puts them under, and payers know it. CMS published 242,469 anesthesia disputes for 2025, with awards climbing every quarter of the year. This site explains how anesthesia groups and CRNA practices use federal IDR, grounded entirely in the published record.
All 3.39 million federal IDR disputes published by CMS, 2023 through 2025. Explore the data at idrexplorer.com.
Federal IDR is the No Surprises Act arbitration process for out-of-network claims, and anesthesiology is one of its largest specialties. CMS published 242,469 anesthesia disputes for 2025. Anesthesia clinicians won 82.8 percent of decided disputes that year, the median award was 5.2 times the qualifying payment amount across decided line items, and the median decision took 31 days.
The specialty the law was written around
When Congress debated surprise billing, the example on every slide was the anesthesiologist the patient never met. The No Surprises Act answered by protecting out-of-network anesthesia in the two settings where it happens: emergency care, and care at in-network hospitals and ambulatory surgery centers. It went one step further for anesthesiology specifically, placing it on the ancillary list where notice-and-consent waivers are never valid. Nothing a patient signs at check-in can move an anesthesia claim out of the process.
What anesthesia won in 2025
The 2025 public use files contain 242,469 disputes with anesthesia line items. Clinicians won 82.8 percent of the ones arbitrators decided, with a median award of 5.2 times the qualifying payment amount across decided line items and a median decision time of 31 days. Awards strengthened through the year: the median multiple rose from roughly 5.2x in the first quarter to 6.1x by the fourth. The single biggest code was anesthesia for screening colonoscopy (00812), with 28,711 disputes and a median decided award of $1,620 against a median QPA of $247.
Endoscopy anesthesia is the volume engine
Four of the five most disputed anesthesia codes in 2025 were GI endoscopy codes: screening colonoscopy (00812), upper GI (00731), combined upper and lower (00813), and diagnostic colonoscopy (00811). Together they account for more than a third of the specialty's disputes, and their decided awards ran six to nine times QPA. Groups staffing endoscopy centers generate exactly the claim profile the process rewards: recurring, same-payer, same-service claims that batch cleanly into single arbitrations.
The cost side for an anesthesia group
Filing runs on small fixed fees: $15 per party per dispute for the government, plus a certified IDR entity fee of a few hundred dollars that comes back to the winner. The real question is what you give up to run it. Contingency arrangements with vendors or counsel commonly cost 15 to 25 percent of the award. Lido IDR runs eligibility, batching, offers, and deadlines for a flat fee per arbitration. Every statistic on this site comes from the CMS public use files and can be checked at idrexplorer.com.
Common questions
Can anesthesiologists use federal IDR?
Yes. Out-of-network anesthesia qualifies when it is part of emergency care or furnished at an in-network hospital or ambulatory surgery center. Anesthesiology is on the ancillary list, so patient consent waivers never apply. Medicare, Medicaid, and office-based cases are outside the process.
What do anesthesia groups win in federal IDR?
In the 2025 public use files, anesthesia clinicians won 82.8 percent of decided disputes, with a median award of 5.2 times the qualifying payment amount across decided line items and a median decision in 31 days. The median multiple climbed to 6.1x by the fourth quarter.
Do CRNA claims qualify for federal IDR?
Yes. The No Surprises Act protects items and services, not job titles. Anesthesia furnished out-of-network by CRNAs at in-network facilities or in emergencies qualifies the same way physician anesthesia does.
Can a patient consent form waive anesthesia balance billing protection?
No. Anesthesiology is named on the statute's ancillary services list, for which notice-and-consent waivers are never valid. Protected anesthesia claims stay protected regardless of intake paperwork.
What does filing cost an anesthesia group?
Each party pays a $15 administrative fee per dispute plus a certified IDR entity fee of a few hundred dollars, refunded to the winner. Vendors and law firms typically take 15 to 25 percent of recovery; Lido IDR charges a flat fee per arbitration.
Talk through your numbers
Book 30 minutes with an NSA/IDR specialist. Bring your payer mix and rough out-of-network claim volume, and we will walk through which claims are eligible, what similar providers are winning at IDR, and what a flat fee arrangement looks like. Three quick questions, then pick a time.
Which best describes you?
Roughly how many out-of-network claims does your group bill a month?
An estimate is fine.
Who works your out-of-network claims today?
Last step, then pick a time.
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This page is for medical providers
If you got a surprise medical bill, you do not need a service like ours. The federal No Surprises Act protects you directly, and government help is free.
Start here: cms.gov/medical-bill-rights
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