Questions to ask an NSA and IDR company before you hire one

Why should a hospital or ER group ask an IDR company these questions?

Because the No Surprises Act turns an underpayment into a dated, document-heavy legal process, and a partner that misses one date or one fee loses the claim, not just the case. The federal rules are strict. Open negotiation must start within 30 business days of the initial payment or denial, it runs 30 business days, and federal IDR must then be started within 4 business days after it ends (45 CFR 149.510(b)). Those windows are fixed, so a claim that falls outside them cannot enter federal IDR.

The rules are also moving. The federal IDR operations final rule (91 FR 33900) took effect August 3, 2026. The $15 per party administrative fee applies to disputes initiated on or after June 11, 2026. Several process changes, including the new response requirement during open negotiation, start 90 calendar days after the government announces that the matching portal features are available. A partner who cannot tell you which parts of the rule are live today and which are not is guessing with your money.

This guide lists the thirteen questions hospital and ER group buyers ask most. For each one it says why the question matters, citing the rule or the risk behind it, and then how Nucleus Align answers it. Where we do not publish an answer, we say so and offer to go through it on a call. We do not invent figures to fill a gap. Our out-of-network work is described in full on the No Surprises Act hub and the out-of-network billing and IDR service page.

How do you decide whether a claim qualifies under the No Surprises Act?

Why it matters: federal IDR does not cover every claim. The CMS applicability chart says the process does not apply to items and services payable by Medicare, Medicaid, the Children's Health Insurance Program or TRICARE, and CMS states that Medicare (including Medicare Advantage) and Medicaid (including Medicaid managed care) are outside the No Surprises Act protections. The chart also says federal IDR applies to self-insured ERISA plans in all states, except where a self-insured plan has opted in to a state process in a state that permits it. Those opt-in states are Georgia, Maine, Nevada, New Jersey, Virginia and Washington. Fully insured plans in a state with its own out-of-network payment law follow that state's process instead. A dispute filed on the wrong track is simply ineligible, and the fees and effort are lost.

A good answer describes a screening step that happens before any dispute is built, and that separates plan type, state and program. Ask whether the screening is done once at onboarding or for each patient. Plans change, patients change coverage, and a client's payer mix is never fixed.

How Nucleus Align handles it: we verify benefits every day for every patient the client sends us, to see whether the claim falls under the federal IDR process or a state process. Self-funded (ERISA) plans go to federal IDR. Fully insured plans regulated by a state go to that state's process. Medicare and Medicaid claims are outside the dispute process, so we route them to ordinary billing and appeals instead. The result is a recorded route for each claim before any notice is drafted.

How do you handle states whose surprise billing laws replace or change the federal process?

Why it matters: the federal rules supplement state laws and do not replace them. CMS says a dispute that is subject to a specified state law or an All-Payer Model Agreement is not eligible for the federal IDR process, and it lists that as a common filing mistake. A state with its own law can change the timeline, the forum and the price method. Ask a prospective partner to name the states it has actually worked in, and ask how it keeps current as state rules change.

Texas is the clearest example. The Texas Insurance Code, chapter 1467, applies to health maintenance organization plans, preferred and exclusive provider benefit plans and certain administrators. The Texas Department of Insurance says the state law applies to state-regulated plans, whose cards show DOI or TDI, and to state employee (ERS, including HealthSelect) and teacher (TRS) coverage, and that it does not apply to self-funded employer plans. In Texas, mediation applies to facility claims and arbitration to non-facility providers, each with its own request window.

How Nucleus Align handles it: fully insured plans regulated by the Texas Department of Insurance go to the Texas process. Their ID cards carry an indicator such as TDI or DOI, and HealthSelect plans are also identified from the card. Self-funded plans in Texas go to federal IDR. Our work covers federal IDR and applicable state pathways, including Texas TDI, with jurisdiction-specific compliance checks on every claim. For other states, we check the plan type and the state law on each claim before we choose the route. For the state-by-state rules, see our page on state surprise billing laws.

Do you confirm the service was in an ED or freestanding ED, and that the plan is covered?

Why it matters: the emergency protections attach to emergency services furnished at a hospital emergency department or an independent freestanding emergency department. A claim built on a service that does not meet that description may fail at the eligibility review, and the fees paid to get there are not recovered. The plan also matters, because coverage and the plan's type decide which process the claim follows.

A good answer is that the partner asks you for the place of service and the licensure facts instead of assuming them, and that someone checks the plan and what it covers. If a partner only needs a list of underpaid claims, it is skipping a step that decides eligibility.

How Nucleus Align handles it: the client tells us whether the service was given in an emergency department or a freestanding emergency department, and we confirm the patient's plan and what it covers. We record both in the case file before anything is filed. For the facility side of this, see our page on billing for EDs and freestanding ERs.

What documents do you need from us?

Why it matters: every notice and offer has to be supported by the claim as it was billed and the payment as it was made. The open negotiation notice under the current rule text carries the service dates, service code, place of service or bill type code, the initial payment (including zero), and a copy of the remittance advice, among other items. Missing paperwork stalls a case, and a case that stalls near a deadline can be lost.

A good answer is a short, specific list, not a vague request for access to everything.

How Nucleus Align handles it: we need four things from the client.

1. Claim forms: the UB-04 for facility claims and the CMS-1500 for professional claims.
2. Medical records for the encounter.
3. Remittances: the 835 ERA files or the EOBs.
4. Payer contracts, if any exist.

Contracts matter because a participating agreement can change whether the claim is out of network at all. If a client has no contract with a payer, that is a normal and useful fact, and we record it. Our general approach to contracts is on the payer contracting service page.

Who tracks the 30-business-day open negotiation period and the 4-business-day IDR window, and what happens if a deadline is missed?

Why it matters: the dates are short and they do not bend easily. Under 45 CFR 149.510, the provider has 30 business days from the day it receives the initial payment or denial to start open negotiation. The negotiation period is 30 business days, and federal IDR must be initiated within 4 business days beginning on the first business day after the last day of that period. CMS guidance states that disputes are ineligible for federal IDR unless the open negotiation requirements are met and the dispute is initiated generally within that 4-business-day window. A rule at 149.510(g) allows extensions for extenuating circumstances, but treating that as a plan is a mistake.

There is also a new requirement. Under the 2026 rule, the party that receives an open negotiation notice must respond by the 15th business day of the negotiation period. That part applies once the portal features are announced and the 90-day countdown runs. A partner should already be able to tell you what that will change for your payers. Our page on the 2026 federal IDR operations rule covers the dates.

A good answer names the person or team who owns the calendar, says how often it is checked, and says plainly what happens when a date is missed. The honest answer is that a missed window can end the claim's path into federal IDR.

How Nucleus Align handles it: a designated NSA team owns every case. The team tracks the 30-business-day open negotiation period and the 4-business-day window to start IDR, and it adds the 15th-business-day response date once that requirement applies to a case. Our controls include deadline tracking and required fees paid on time across open negotiation, IDR and TDI workflows. Because the window is fixed, the practical protection is starting early and recording each date when the remittance arrives. For the process itself, see open negotiation and the federal IDR process.

How do you prove submission dates, notice delivery and receipt?

Why it matters: an eligibility dispute often turns on a date. The payer says the notice came late, or never came, and the provider has to show otherwise. Under the rule, the notice and supporting documentation go to the other party and to the Secretary through the Federal IDR portal on the standard forms, once the matching functionality applies, so a portal confirmation is part of the proof. Before and around that, the provider still needs its own record.

A good answer describes where the proof lives and who can pull it. Ask what the partner can produce, for a single case, in an hour.

How Nucleus Align handles it: all cases are started from a dedicated email address. We keep printed documents and proof of submission for every case in a separate folder per case, so dates and notice delivery can always be shown. The folder belongs to the case, not to a person, so it does not depend on one employee's inbox.

How do you handle late, partial or wrong payments, and remittances with wrong remark codes?

Why it matters: winning is not the same as being paid. Under 45 CFR 149.510(c)(5)(ix), the amount of the offer selected by the IDR entity, less the initial payment and any patient cost sharing, must be paid directly to the provider not later than 30 calendar days after the determination. If it is not, the Departments advise reporting the problem to the No Surprises Help Desk at 1-800-985-3059, open 8 a.m. to 8 p.m. ET, 7 days a week, or filing the CMS online complaint.

Remittances matter earlier in the case. Starting with services furnished on or after January 1, 2027, payers must use specified remittance advice remark codes (RARCs) to show whether a claim is under the No Surprises Act. CMS guidance lists N871 through N877, N943 and N944, effective November 1, 2026, for use with those services. Since August 3, 2026, the payer must give the plan's legal name, the plan sponsor where it applies, and the registration number with the initial payment or denial. Those registration numbers depend on a registry that is not yet running, so you should not expect to see them on every remittance today. CMS also says a provider may still start the federal IDR process after open negotiation even if it disagrees with the payer's remark code. Plans and issuers may continue to use the claim adjustment reason code (CARC) they consider most appropriate, because no CARC is required yet.

How Nucleus Align handles it: eligibility for the No Surprises Act is confirmed from the remark codes on the remittance (ERA or EOB). If the payer does not pay, or pays the wrong amount, we follow up and file a complaint. Our practice is to escalate when payment has not arrived 45 days after the determination, which is later than the rule's 30-calendar-day deadline, and complaints go to the No Surprises Help Desk, as the Departments advise. Related reading is on our page on the qualifying payment amount.

Who pays the administrative and IDR entity fees, and how do you make sure a missed fee deadline never loses a case?

Why it matters: the fees are a condition of being heard. Under 45 CFR 149.510(d), each party must pay a non-refundable administrative fee when the certified IDR entity is selected, and the certified IDR entity fee no later than the date the party submits its offer. A party that fails to pay either fee has its offer treated as not received, and it stays responsible for the fee. CMS puts the same warning plainly on its tips page: if you do not pay your administrative and certified IDR entity fees, your offer will not be reviewed. The administrative fee is $15 per party per dispute for disputes initiated on or after June 11, 2026. It was $115 per party per dispute for disputes initiated from January 22, 2024 through June 10, 2026. The entity fee paid by the prevailing party is returned by the IDR entity within 30 business days of the determination.

A good answer says who pays, who tracks, and how the client is told. Ask whether the partner advances fees, because that changes your cash exposure and your contract.

How Nucleus Align handles it: the client pays the federal administrative fee and the IDR entity fee. We track every fee deadline and tell the client in writing when each fee is due, so a missed fee deadline does not come from a lack of notice. The rule treats an unpaid fee as an offer not received, which is why the written notice matters.

How many ER disputes have you filed and closed, and what is your win rate by payer and CPT code?

Why it matters: past results are the only evidence a partner has, and they are easy to misquote. A single average hides the mix. Win rate means little without the number of cases behind it, the payers, the service codes and the size of the award relative to the QPA. IDR performance is best measured by decision win rate, award-to-offer ratio, reimbursement recovered and collections, using case-level data that can be checked.

Ask for the same measures from every partner you compare, and ask what is in the denominator. Ask whether the figures include open negotiation settlements or only IDR decisions. Ask whether they are from the partner's own files or from public data.

How Nucleus Align handles it: we show win rates by payer on a call, as totals with no patient or client details. We do not publish a breakdown by CPT code, an average award as a percentage of the QPA, or a count of ER disputes filed against closed in this guide. We walk through what we can show on a call, and we do not put numbers on a page that we have not approved. For the figures we do publish, see the No Surprises Act hub.

Which payers have you disputed against, and can we see references and sample dispute packages?

Why it matters: payers differ in how they pay, how they respond in open negotiation and how often they pay what the IDR entity selects. A partner with experience against your largest payers starts ahead. References and samples are a normal request in any purchase, and the reasons we do not share them are good ones.

How Nucleus Align handles it: we discuss which payers we have disputed against on a call, and we show win rates by payer as totals only. We do not share references or sample dispute packages. A dispute package contains other clients' and patients' information. Instead, we walk through our process in detail, and the checklist below gives you questions to test any partner's answers.

How does our billing team work with you on denial codes, payment posting and appeals?

Why it matters: the IDR partner and the billing office touch the same claim. A denial code, a posting error or a missed appeal on the billing side can change the facts of the dispute. If the two teams work from different pictures of the claim, the dispute package contradicts the ledger.

A good answer is specific about who owns which step and how information moves between them. It should include how denials are classified, who posts the final payment, and how an appeal on a non-NSA claim is handled.

How Nucleus Align handles it: we align each EHR, clearinghouse and payer portal workflow with the client's team. Our hospital and facility billing covers institutional (UB-04) claim preparation, revenue-code validation, submission, payment reconciliation and denial management. We work denials within 48 hours, and day-to-day communication on NSA cases is by email, so there is a written record. Older claims that cannot enter federal IDR can still be worked through appeals, prompt-pay laws or state processes where those apply. See our denial management service for the billing-side detail.

What is onboarding like, and how far back can you go on older claims?

Why it matters: onboarding time decides when the first claim is protected, and the backlog is often where the money is. The limit on older claims is set by two things: each payer's filing limits, and the federal IDR windows. Federal IDR has fixed windows, so a claim that is past the open negotiation and initiation dates cannot enter federal IDR. Other routes, such as a state process or prompt-pay rights, may still exist depending on the plan and the state. Texas, for example, has its own request windows for mediation and arbitration.

How Nucleus Align handles it: onboarding for an NSA client takes up to one week, and we agree the exact plan on the call, because it depends on the client's volume, systems and the people who will submit in the portal. We go back as far as each payer's filing limits allow, within the federal IDR windows. In the federal portal, an authorized user located in the US submits, as the portal's rules require. CMS technical guidance says a user must be both lawfully present and physically located in the United States or its territories. That authorized user is usually a person on the client's team, set up during onboarding. Our team prepares every notice and dispute package and tracks every deadline, and the client's authorized user makes the submission.

What can we see on a dashboard, and how often do you report?

Why it matters: you cannot manage a pipeline you cannot see. At a minimum, a finance leader needs to know how many claims are in negotiation, how many are in IDR, which decisions have come back and how much has been collected. Without that, a partner's results cannot be tested against your own cash.

How Nucleus Align handles it: clients get monthly reports today, customized to what the client needs. A client dashboard for NSA cases is being built, and we do not describe its features here. We do not publish sample reports on this page, so we show what a report covers on a call.

What is the buyer's checklist for choosing an NSA and IDR partner?

Use the downloadable checklist at the end of this guide in a vendor call. The table below turns the answers into red flags and green flags you can score.

If you want to test these answers with us, book a call. This guide is general information, not legal advice. Have counsel review contract and compliance questions.