Emergency medicine is the front door of American healthcare. Every year, more than 150 million patients pass through emergency departments across the country, and the physicians who treat them do so under a mandate unlike any other in medicine: they cannot say no. Under the Emergency Medical Treatment and Labor Act (EMTALA), every patient who presents to an emergency department must be screened and stabilized regardless of their ability to pay, their insurance status, or whether the physician is in-network with their plan.
This legal obligation creates an extraordinary financial paradox. ER physicians are required to provide complex, high-acuity care to every patient who walks through the door, yet insurance companies routinely pay them a fraction of what that care is worth. The result is a structural gap between what emergency physicians bill and what plans pay. We are not going to put a dollar figure on your practice — nobody credibly can without seeing your EOBs. What is published is the scale of the response: certified IDR entities issued 154,987 payment determinations in the emergency department category in the fourth quarter of 2024 alone, and across all categories in 2024 the provider side prevailed in about 85% of determinations.
This article examines why emergency medicine is uniquely vulnerable to insurance underpayment tactics, how the No Surprises Act provides powerful protections for EM providers, and exactly how ER physicians and groups can use Independent Dispute Resolution (IDR) to recover what they are rightfully owed.
Why Emergency Medicine Is Uniquely Affected
No other medical specialty operates under the constraints that define emergency medicine. Understanding these constraints is essential to understanding why EM underpayments are so pervasive and so large.
The EMTALA Mandate: You Cannot Choose Your Patients
Since 1986, EMTALA has required every Medicare-participating hospital to provide a medical screening examination and necessary stabilizing treatment to anyone who arrives at the emergency department, regardless of their insurance status or ability to pay. This is a federal law with serious penalties for non-compliance: hospitals and physicians can face substantial civil monetary penalties — the maximum amounts are adjusted for inflation every year and published by HHS — along with exclusion from Medicare and civil lawsuits.
What this means in practice is that ER physicians have zero control over their payer mix. An orthopedic surgeon can choose to accept only certain insurance plans. A dermatologist can require upfront verification before scheduling an appointment. An ER physician treats whoever comes through the door at 3 AM with a STEMI, a gunshot wound, or an anaphylactic reaction. There is no pre-authorization, no insurance verification before treatment, and no option to refer out.
The Out-of-Network Trap
Emergency physicians frequently find themselves treating patients whose insurance plans they have no contract with. A patient may have insurance through a plan that has no agreement with the ER physician, the hospital, or both. The physician has no way to know this beforehand, and even if they did, EMTALA prohibits them from delaying or refusing care. This creates a massive out-of-network (OON) exposure that simply does not exist in most other specialties.
How large is the exposure? The clearest published answer is what actually reaches arbitration. In the fourth quarter of 2024 alone, certified IDR entities issued 154,987 payment determinations in the emergency department category — more than any other category by a wide margin, and CMS reported emergency services as the majority of all payment determinations in its earlier reporting periods. Every one of those started as a claim an emergency physician was paid less for than they believed the service was worth.
High Volume, High Value, High Stakes
Emergency medicine is characterized by high patient volumes and high per-encounter complexity. A busy ER physician may see 2 to 3 patients per hour during a 12-hour shift, handling everything from lacerations and fractures to sepsis management, intubations, and cardiac resuscitations. The clinical decision-making required in these encounters is among the most demanding in all of medicine, and the corresponding reimbursement rates should reflect that.
The federal data cuts against a common assumption here. Emergency medicine's exposure is not driven by a handful of large claims — it is driven by volume at modest values. Across all categories in the fourth quarter of 2024, more than half of all payment determinations concerned claims with a QPA under $500, and those are precisely the claims where the median prevailing offer sat furthest above the plan's benchmark: 5.53× under $100 and 3.45× between $100 and $500, against 1.73× for claims of $10,000 and above.
The practical consequence is that the claims an emergency group is most likely to write off as too small to argue about are, by the published medians, the ones with the widest measured gap. That calculation changed again in June 2026, when the administrative fee dropped from $115 to $15 per party per dispute.
The No Surprises Act and Emergency Medicine
The No Surprises Act (NSA), which took effect on January 1, 2022, was designed in large part to address the unique challenges of emergency medicine billing. Understanding how the law specifically protects EM providers is critical for any physician or group looking to recover underpayments.
Emergency Services: A Protected Category
The NSA explicitly designates emergency services as a protected category. Under the law, patients cannot be balance-billed for emergency care, and insurers are required to pay out-of-network emergency providers an amount that the law deems appropriate. When the provider and insurer disagree on what that amount should be, the dispute goes to Independent Dispute Resolution (IDR), a binding arbitration process administered by certified entities.
This is a crucial distinction: emergency services are automatically eligible for IDR protection. Unlike some other service categories where eligibility depends on specific circumstances, emergency care always qualifies. An ER physician does not need to prove that the patient had no choice of provider or that the service was performed at an in-network facility. The emergency nature of the care is sufficient.
The Prudent Layperson Standard
The NSA incorporates the "prudent layperson" standard for determining what constitutes an emergency medical condition. This standard defines an emergency as any condition that a person with average knowledge of health and medicine would reasonably believe requires immediate medical attention. This is a patient-facing standard, meaning it is based on the patient's perception, not a retrospective clinical determination by the insurer.
This standard is powerful for EM providers because it prevents insurers from retroactively denying emergency claims by arguing that the patient's condition turned out to be non-emergent. If a patient presents with chest pain that could be a heart attack, the emergency claim is valid even if the final diagnosis is musculoskeletal pain. Insurers have historically used retrospective reviews to downgrade or deny emergency claims, and the No Surprises Act's prudent layperson standard provides a strong counterargument in IDR proceedings.
IDR: The Arbitration Mechanism
When an ER physician receives an underpayment, the NSA provides a structured process for resolution. After a 30-business-day open negotiation period, either party has four business days to initiate IDR. A certified IDR entity (an independent arbitrator) reviews submissions from both sides and selects one offer as the final payment amount. This "baseball-style" arbitration, where the arbitrator must choose one offer or the other without splitting the difference, creates a powerful incentive for both sides to submit reasonable offers.
The published outcomes are strong, and it is worth stating them precisely, because the precision matters. In 2024 the provider side prevailed in approximately 85% of payment determinations — that is, of the disputes that reached a decision. It is not 85% of disputes initiated: roughly 19% of disputes initiated in 2024 were found ineligible and never reached a determination at all. Of the determinations that were made, the prevailing offer was above the plan's qualifying payment amount in about 85% of cases.
How far above depends on the size of the claim, not on the specialty's reputation. CMS publishes the median prevailing offer as a share of QPA by cost band: 5.53× for claims under $100, falling to 1.73× for claims of $10,000 and above. For the emergency department category specifically, the median prevailing offer ran 3.07× the QPA in the fourth quarter of 2024. All of these figures, with their sources.
Common EM Underpayment Patterns
Insurance companies use a predictable set of tactics to underpay emergency medicine claims. Recognizing these patterns is the first step toward recovering what you are owed. These same tactics are documented in our in-depth guide to insurance underpayment strategies.
Critical Care Downcoding
| CPT range | Category | Median prevailing offer vs QPA | Determinations, Q4 2024 |
|---|---|---|---|
| 99281–99288 | Emergency department services | 3.07× | 154,987 |
| 99291–99292 | Critical care services | 3.22× | 8,133 |
Critical care services (CPT 99291 and 99292) are among the most commonly underpaid codes in emergency medicine. These codes are used when a physician provides direct care to a critically ill or injured patient, including bedside management of ventilators, hemodynamic monitoring, and real-time decision-making for life-threatening conditions. Insurers routinely downcode critical care to a standard emergency department visit (typically 99283 or 99284), reducing reimbursement substantially.
The key to winning critical care disputes in IDR is meticulous documentation. Time spent in critical care must be documented with specific start and stop times, and the medical record must clearly describe the nature of the critical illness and the interventions performed.
High-Complexity Visit Downcoding
A similar pattern occurs with high-complexity emergency department visits. When an ER physician bills a Level 5 visit (99285) for managing a complex patient with multiple comorbidities, severe sepsis, or multi-system trauma, insurers frequently pay at the Level 3 (99283) rate. The gap between those two levels is material on every single encounter, and it compounds across a shift and across a year.
This downcoding is often automated. Insurers use algorithmic claims processing that applies pre-set rules to reduce reimbursement, without any clinical review of the specific encounter. The same systems that process a straightforward ankle sprain process a complex sepsis resuscitation, and the algorithm defaults to the lower rate.
Procedural Bundling and Denial
Emergency physicians frequently perform procedures during the course of an emergency visit: central line placement, intubation, chest tube insertion, laceration repair, fracture reduction, and procedural sedation, among many others. Insurers use two primary tactics to avoid paying for these services:
- Bundling: The insurer claims the procedure is "included" in the E/M code and refuses to pay separately, even when the procedure is independently billable under CCI (Correct Coding Initiative) guidelines.
- Denial: The insurer denies the procedure entirely, claiming it was not medically necessary, was not properly documented, or was duplicative of another service.
Both tactics are frequently overturned in IDR when supported by proper documentation, CCI modifier usage, and FAIR Health reference data showing the procedure's independent value.
Post-Stabilization Services
Watch for this tactic: After a patient is stabilized in the ED but remains under the ER physician's care (for observation, continued management, or pending admission), insurers may retroactively classify this care as "non-emergency" and apply standard out-of-network payment rates rather than emergency rates.
Under the No Surprises Act, post-stabilization services provided by an out-of-network provider are protected until the patient can be safely transferred or the patient gives informed consent to continue receiving out-of-network care.
This is a particularly insidious tactic because it exploits the transition point between emergency and ongoing care. The ER physician is still managing the patient, still making critical decisions, but the insurer retroactively reclassifies the time period to reduce its payment obligation.
What the Federal Medians Imply for an Emergency Group
We are not going to show you case studies. Any firm can print a number next to the words “recovered” and add a disclaimer underneath, and you have no way to check it. What you can check is the federal data — so here is the arithmetic, with every input named and sourced, and you can run it against your own claims.
Three figures do the work. CMS reports that roughly 19% of disputes initiated in 2024 were found ineligible, so about four in five reach a determination. Of those determinations, the provider side prevailed in about 85%. And in the emergency department category, the median prevailing offer was 3.07× the qualifying payment amount in the fourth quarter of 2024.
A group disputing 100 emergency claims a month at a $400 average QPA
1,200 claims a year × 0.81 eligible × 0.85 decided for the provider = about 826 determinations expected to land on the provider side. At a median of 3.07× QPA, each closes a gap of roughly $400 × 2.07 = $828 above what the plan paid. That models to about $684,000 a year above QPA.
Against that: $15 per party per dispute in administrative fees since June 11, 2026, and the certified IDR entity fee, which is paid by the non-prevailing party. Batching qualifying claims into single disputes reduces both.
That $684,000 is the modelled gross above QPA, before our contingency percentage and before the certified IDR entity fee on disputes that do not prevail — your net is lower, and we state the percentage in writing before anything is filed. This is a scenario built from published medians. It is not a prediction, not an average of our results, and not a promise. Your QPAs, your payer mix, your documentation and your eligibility will move every one of these numbers. The point of showing the formula rather than a testimonial is that you can substitute your own figures and see what falls out.
Run the same arithmetic with a $150 average QPA and the multiple rises to 3.45× (the $100–$500 band), which is why small claims are frequently worth more to dispute than large ones — the opposite of most people's intuition, and the opposite of how most groups triage. Claims at $10,000 and above close a median gap of only 1.73×.
What this arithmetic cannot tell you is whether your claims are eligible, and that is where disputes are actually lost. About 19% of disputes were found ineligible in 2024 — they ended on eligibility rather than on the merits. That is the first thing we check, before anything is filed, and we tell you when the answer is no.
EM-Specific IDR Strategies That Win
Emergency medicine claims have inherent characteristics that make them particularly strong in IDR proceedings. Understanding and applying them is what separates a submission a certified IDR entity can act on from one it cannot.
Patient Acuity Documentation
Emergency patients are, by definition, acute. The medical records from emergency encounters typically contain rich clinical detail: vital sign abnormalities, acute findings on imaging and labs, real-time clinical decision-making, and documentation of the emergent nature of the presentation. This documentation is the foundation of every successful IDR submission. Unlike elective outpatient encounters where acuity can be debated, emergency encounters carry an inherent presumption of clinical urgency.
FAIR Health Data for Emergency Medicine
FAIR Health maintains one of the largest databases of privately billed healthcare claims in the country. The statute does not name it — what the statute does is direct the certified IDR entity to consider the QPA together with additional information the parties submit, and independent rate data is one of the recognised categories of such information. For emergency medicine, FAIR Health data typically shows that fair market rates for EM services significantly exceed the Qualifying Payment Amount (QPA) that insurers use as their baseline offer. Presenting FAIR Health 80th or 90th percentile data for the specific geographic region and CPT code is one of the most effective tools in an EM IDR submission.
Complexity Supports Higher Awards
Emergency medicine encounters are inherently complex. A single ER visit may involve multiple decision points, multiple diagnoses, multiple procedures, and management of multiple comorbidities, all under time pressure and clinical uncertainty. This complexity is a strength in IDR. Arbitrators are trained to consider the clinical complexity of the encounter, and ER cases naturally provide rich evidence of complex, multi-faceted care that justifies higher reimbursement.
"The complexity of emergency medicine is not a billing challenge; it is a billing asset. When properly documented and presented, the inherent acuity and multi-system decision-making of EM encounters creates the strongest possible case for fair reimbursement."
The Staffing Company Problem
Many emergency physicians work through contract management groups (CMGs), also known as staffing companies, that hold the contract with the hospital and employ or subcontract the physicians. This creates a layer of complexity that can significantly impact revenue recovery, and it is a reality that must be addressed directly.
Negotiated-Away Rights
When a CMG negotiates a contract with a hospital or an insurance company, the terms of that contract may include payment rates that are far below fair market value. The individual physician has no seat at the table during these negotiations. The CMG may accept low rates to win the contract, knowing that the reduced reimbursement will be absorbed by the physicians through lower compensation.
In some cases, CMG contracts contain clauses that prohibit physicians from independently pursuing payment disputes or that assign all billing and collection rights to the CMG. Physicians working under these arrangements need to carefully review their contracts to understand what rights they retain.
Balance Billing Prohibitions
Under the No Surprises Act, emergency physicians are prohibited from balance billing patients for out-of-network charges. This means the physician cannot seek additional payment from the patient when the insurer underpays. The only recourse is the IDR process (or direct negotiation with the insurer). This makes it even more critical that ER physicians actively pursue underpayment recovery, because the patient cannot be asked to make up the difference.
What Individual ER Physicians Can Do
- Review your contract carefully: Understand what billing rights you retain and whether you can independently pursue IDR for claims where you are the rendering provider.
- Track your EOBs: Even if your CMG handles billing, you should be reviewing Explanations of Benefits to identify underpayment patterns. Many CMGs do not pursue IDR because the cost-benefit analysis does not align with their business model, but it may align with yours.
- Know your options: Some physicians transition from CMG employment to independent contractor arrangements or form their own democratic groups specifically to gain control over billing and collections.
- Advocate collectively: If you are one of many physicians in a contract management group, collective advocacy can change the group's approach. The argument does not need invented numbers — the published federal medians and the group's own EOBs make the case on their own.
How to Compare: IDR vs. ERISA Appeals
Emergency physicians have access to both the No Surprises Act IDR process and, in many cases, ERISA appeals for employer-sponsored health plans. These are distinct processes with different advantages. Our detailed comparison in IDR vs. ERISA Appeals explores the strategic considerations for each pathway, but the key takeaway for EM providers is this: IDR is typically the stronger path for out-of-network emergency claims because the NSA's emergency services protections provide a clear legal framework and favorable arbitration dynamics.
Step by Step: How an ER Physician Gets Started
If you are an ER physician or part of an EM group and you suspect you are being systematically underpaid, here is exactly what the recovery process looks like.
- Gather your EOBs and remittance data Collect Explanations of Benefits (EOBs) and Electronic Remittance Advice (ERA/835) files for at least the past 12-24 months. Focus on out-of-network claims and any claims where payment seemed unexpectedly low. If your billing is handled by a CMG, request copies of all remittance data for claims where you were the rendering provider.
- Request a free analysis Contact our team to schedule a complimentary review of your claims data. We will identify underpayment patterns, estimate total recoverable revenue, and determine which claims are strongest for IDR pursuit. This analysis is free and creates no obligation.
- Review the findings We come back to you with a report showing identified underpayments by CPT code, payer and date of service, and we tell you up front how long the review will take for the volume you send. The report includes estimated recovery amounts based on FAIR Health data and historical IDR outcomes for emergency medicine in your region.
- Authorize recovery If you choose to proceed, we work on a contingency basis: no upfront cost, no retainer, and no fee unless we recover funds for you. The fee is a percentage of what is actually recovered, and that percentage is written into your engagement agreement before a single claim is filed. Separately, the federal process carries fees the Departments set, not us — $15 per party per dispute since June 11, 2026, and the certified IDR entity fee, paid by the non-prevailing party. You sign a limited authorization allowing us to file IDR disputes on your behalf, and your clinical workflow is completely unaffected.
- Open negotiation (30 days) The Act requires a 30-business-day open negotiation period before IDR can be initiated. During this period, we submit a formal demand to the insurer with supporting documentation. Some disputes settle during this phase without going to arbitration. We do not publish a rate for that, because we have no way to substantiate one and neither does anyone else quoting you a number.
- IDR filing and resolution For claims not resolved in negotiation, we file IDR petitions with certified arbitration entities. We prepare thorough submissions including clinical documentation, FAIR Health data, complexity arguments, and prior IDR outcomes. The certified IDR entity issues a binding determination not later than 30 business days after it is selected (45 CFR 149.510(c)(4)(ii)). The statutory clock is what you can rely on: 30 business days of open negotiation, a 4-business-day window to initiate, then 30 business days for the certified IDR entity to decide. Payment follows within 30 calendar days of the determination.
- Payment collection and reporting Once the IDR award is issued, the insurer is legally required to pay within 30 days. We track every payment, provide detailed reporting on all recovered amounts, and continue to monitor for future underpayment patterns.
The entire process is designed to require zero disruption to your clinical practice. You continue seeing patients. We handle the eligibility review, the paperwork, the filings and the submissions. Federal IDR is an administrative process run through the Departments' portal rather than litigation, and we are not a law firm. You receive recovered revenue that you earned but were never properly paid for.