How the No Surprises Act Is Affecting Medical Billing Workflows

Sharon Hollander • March 9, 2026

Understanding how the No Surprises Act is reshaping medical billing processes, compliance requirements, and reimbursement workflows across healthcare organizations.

The No Surprises Act (NSA) has fundamentally changed how medical services are billed and reimbursed in the United States. While the law was designed to protect patients from unexpected medical bills, it has also introduced additional complexity into medical billing workflows, especially for physicians and surgeons in small groups and solo practices.

For many providers, the challenge is not the law's intent but the operational reality: new compliance requirements, changes in reimbursement timelines, evolving denial patterns, and increased administrative workload. Medical billing teams must now adapt workflows to remain compliant while protecting revenue.

This guide explains how the No Surprises Act is affecting medical billing workflows today, highlights emerging coding and denial trends, and outlines practical steps physicians can take to reduce risk and stabilize cash flow.


Understanding the No Surprises Act in Plain Terms

The No Surprises Act, which took effect on January 1, 2022, aims to eliminate surprise medical bills for patients in certain situations, including:

  • Emergency services provided by out-of-network clinicians
  • Non-emergency services provided by out-of-network clinicians at in-network facilities
  • Air ambulance services (excluding ground ambulance)

Instead of billing patients for the balance between charges and insurance payments, providers must now work directly with payers through a defined reimbursement process.

For billing teams, this means the patient is no longer the fallback payment source. Accuracy, documentation, and payer negotiation now play a much larger role in revenue recovery.


Why Medical Billing Workflows Are Under Pressure

Before the No Surprises Act, workflows for out-of-network services often followed a familiar pattern: submit the claim, bill the payer, and, if underpaid, balance-bill the patient where allowed.

That workflow no longer applies in many cases. Instead, billing operations must account for:

Each of these steps adds time, complexity, and risk to the billing cycle.


Key Workflow Changes Triggered by the No Surprises Act

1. Claim Classification Is Now Critical

Billing teams must determine early in the process whether a service is subject to the No Surprises Act. This requires accurate identification of:

  • Emergency vs. non-emergency services
  • In-network vs. out-of-network provider status
  • Facility network participation
  • Patient consent and notice exceptions

Errors at this stage can result in improper billing, payer denials, or compliance exposure.

2. Increased Dependence on Accurate Coding

Coding accuracy has always been important, but the NSA has made it essential. Payers rely heavily on claim data to determine whether the law applies and how reimbursement is calculated.

Key coding considerations include:

  • Correct CPT and HCPCS codes
  • Proper use of modifiers such as -26, -TC, or emergency-related modifiers
  • Accurate place-of-service codes
  • Clear documentation supporting medical necessity

Even minor inconsistencies can delay payment or trigger denials.

3. Payment Amounts Are More Payer-Driven

Under the No Surprises Act, insurers often base initial payments on the Qualifying Payment Amount (QPA), generally the payer’s median contracted rate for the service in a given geographic area.

This has shifted leverage toward payers, particularly for out-of-network services. Billing teams must now closely monitor reimbursement trends and identify patterns of underpayment.

4. New Administrative Steps for Underpayments

If a provider disagrees with the payment amount, the workflow now includes:

  1. Initial payment or notice of denial
  2. A 30-day open negotiation period
  3. Possible escalation to the Independent Dispute Resolution process

Each step requires tracking, documentation, and staff time, which small practices often lack internally.


Emerging Denial Trends Under the No Surprises Act

One of the most noticeable impacts of the NSA has been a change in denial behavior by payers. While outright denials may not always increase, partial payments and technical denials have become more common.

Common NSA-Related Denial Reasons


Denial Category Description Workflow Impact
Service Not Qualified Payer claims the service does not fall under NSA protections Requires re-review of documentation
Incorrect Place of Service Mismatch between facility type and claim data Coding correction and resubmission
Modifier Issues Missing or incorrect modifiers Delays payment
QPA Disputes Payer reimbursement based on lower median rates Requires negotiation or IDR
Documentation Insufficient Lack of support for emergency status Additional records submission

These denials often require more follow-up than traditional claim rejections, increasing days in accounts receivable.


New Coding Trends Affecting Medical Billing

The No Surprises Act has also influenced broader coding and billing trends, including:

Greater Scrutiny of Emergency Coding

Payers are closely reviewing claims labeled as emergencies. Billing teams must ensure that emergency services are clearly supported by clinical documentation, not just diagnosis codes.

Increased Importance of Facility-Based Coding Accuracy

Services performed in hospitals, ambulatory surgical centers, or emergency departments are more likely to trigger NSA protections. Accurate facility identifiers and place-of-service codes are essential.

Documentation Alignment With Coding

Discrepancies between operative reports, clinical notes, and codes are more likely to result in payment delays under NSA rules. Consistency across documentation is now a workflow priority.


How the No Surprises Act Affects Small and Solo Practices

Large health systems often have dedicated compliance and legal teams to manage NSA-related processes. Small groups and solo practitioners, however, face unique challenges:

  • Limited staff to manage disputes and negotiations
  • Less leverage when challenging payer payment amounts
  • Higher relative administrative costs per claim
  • Greater risk of cash flow disruption

Without optimized billing workflows, these practices may experience slower payments and increased write-offs.


Adjusting Medical Billing Workflows for Compliance and Efficiency

To adapt to the No Surprises Act, medical billing workflows must be more structured and proactive.

Step 1: Front-End Eligibility and Network Review

Before services are rendered, billing teams should confirm:

  • Network status of the provider and facility
  • Patient insurance details
  • Potential NSA applicability

While not always possible in emergencies, front-end checks reduce downstream issues.

Step 2: Standardized Claim Review Processes

Implement internal checks to ensure:

  • Correct coding and modifiers
  • Accurate place-of-service reporting
  • Supporting documentation attached where needed

Standardization reduces errors that can trigger NSA-related denials.

Step 3: Centralized Tracking of NSA Claims

NSA-eligible claims should be flagged and tracked separately. This allows billing teams to:

  • Monitor payment timelines
  • Identify underpayment patterns
  • Escalate disputes efficiently

Without tracking, opportunities for negotiation are often missed.

Step 4: Structured Denial and Dispute Management

Rather than handling denials reactively, practices should follow a defined process for:

  • Reviewing payer payment methodologies
  • Responding during open negotiation periods
  • Determining when escalation is financially justified

This ensures staff time is focused where recovery potential is highest.


The Role of Medical Billing Services in the NSA Era

For many physicians and surgeons, outsourcing medical billing has become less about convenience and more about risk management.

Professional medical billing services can help by:

  • Staying current on regulatory updates
  • Applying consistent coding and documentation standards
  • Managing payer communications and disputes
  • Reducing administrative burden on clinical staff

This is particularly valuable for practices that cannot justify hiring in-house compliance specialists.


Evidence and Industry Insight

According to the Centers for Medicare & Medicaid Services (CMS), the No Surprises Act significantly altered payment-dispute volumes, with thousands of IDR cases filed in the first year of implementation. Industry analyses have also shown that administrative costs associated with NSA compliance disproportionately affect smaller practices compared with large health systems.

These findings reinforce the need for efficient, compliant billing workflows that minimize manual intervention while maximizing reimbursement accuracy.


What Physicians and Surgeons Should Watch Going Forward

The No Surprises Act is still evolving. Court rulings, regulatory updates, and payer policy changes continue to shape how the law is applied.

Key areas to monitor include:

  • Updates to QPA calculation methodologies
  • Changes in dispute resolution timelines
  • Payer-specific interpretations of NSA rules
  • Emerging denial trends tied to new coding guidance

Staying informed is no longer optional; it is part of protecting practice revenue.


Turning Compliance Into a Competitive Advantage

While the No Surprises Act has increased complexity, it has also highlighted the value of disciplined billing operations. Practices with strong workflows, accurate coding, and proactive follow-up are better positioned to maintain financial stability.

For physicians and surgeons, the goal is not just compliance but building a billing process that supports predictable cash flow and reduces administrative stress.

Simplify Your Billing Workflow With Expert Support

The No Surprises Act has permanently changed medical billing. For physicians and surgeons, adapting workflows is essential to avoid denials, reduce delays, and protect revenue.

STAT Medical Consulting Inc specializes in medical billing and physician billing services for small groups and solo practitioners across the United States. Our team helps practices navigate regulatory changes, improve workflow efficiency, and focus on patient care instead of paperwork.

If your practice is experiencing operational impacts from the No Surprises Act, now is the time to reassess your billing strategy.

Learn how expert billing support can help your practice adapt. Visit www.statmedical.net to get started.


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