Repetitive Ambulance Prior Authorization: The Approval Still Has to Match the Ride

Ambulance prior authorization moves Medicare’s review of recurring nonemergency rides earlier, using the medical evidence already required for payment. If the supplier makes no request before the fourth round trip in a 30-day period, Medicare stops the claims for review before payment. For the crew member, biller or dialysis coordinator, the question behind that process is familiar: does the patient described in the paperwork match the patient making the trip?

What Counts as Repetitive Ambulance Transport?

Repetitive, scheduled non-emergent ambulance transport, commonly called RSNAT, means medically necessary ambulance transportation furnished in three or more round trips during ten days, or at least once a week for at least three weeks. The Centers for Medicare & Medicaid Services set out that definition in its original model announcement.

The definition turns on the recurring service. Dialysis is its central setting because treatment generates repeated trips over a long period. Other medically necessary recurring ambulance trips can meet the definition too. A treatment schedule establishes when someone needs to get there. Their condition establishes why they need an ambulance.

This is Medicare’s ground ambulance review framework. The transport codes are A0426 for advanced life support nonemergency service and A0428 for basic life support nonemergency service. A0425 is the associated ground mileage, rather than a separate transport requiring its own authorization.

The Fourth Round Trip Changes the Review

The prior authorization request is voluntary, but Medicare has another route for examining claims when the supplier skips it. The national expansion notice says claims stop for prepayment review if authorization has not been requested before the fourth round trip within the specified period.

The distinction matters inside a billing office. An advance decision and a claim stopped for medical review put the evidence in front of the reviewer at different points. Both lead back to the same coverage question: what made ambulance transport medically necessary?

RSNAT First Three Round Trips and Medical Necessity Review

The RSNAT first three round trips remain subject to medical necessity review and the ordinary coverage rules. The allowance to bill them without prior authorization concerns the timing of review. Each ride still needs support for the ambulance, the service level and the covered destination.

A recurring schedule can therefore produce unsupported claims before the fourth-trip review starts. The crew’s account of the earlier rides still matters when we examine what the company billed and what it knew about the patient.

The Repetitive Ambulance Authorization Period

The Centers for Medicare & Medicaid Services’ November 2020 notice described repetitive ambulance authorization of up to 40 round trips, or 80 one-way trips, in a 60-day period. A decision could affirm fewer trips or a shorter period. The agency calls that decision a provisional affirmation.

The period and trip count describe the scope of that advance decision. The patient’s condition and the services actually furnished still determine coverage for the ride. An authorization period cannot make an inaccurate clinical description true.

From a State Model to Nationwide Review

The model began on December 1, 2014, in New Jersey, Pennsylvania and South Carolina, selected for high utilization and improper payment rates. The Centers for Medicare & Medicaid Services took the review nationwide by August 2022.

Dialysis Ambulance Payment Cuts

The policy response also reached the price of dialysis trips. Congress reduced qualifying nonemergency basic life support dialysis payments by 10% beginning in October 2013, then by 23% beginning in October 2018. The Medicare payment law carries that later reduction. It reaches both the transport payment and its mileage.

What Is an Ambulance Physician Certification Statement?

An ambulance physician certification statement is a signed and dated statement from the patient’s attending physician certifying medical necessity. The PCS supplies clinical certification. The prior authorization decision records the review of the supporting material. The certification and the review decision do different jobs.

The Medicare coverage regulation expressly says that a signed PCS alone does not demonstrate medical necessity. The patient’s medical record supplies additional support. A signature cannot resolve a contradiction between the certification and what happened during transport.

What Are the Requirements for a CMS Physician Certification Statement?

For scheduled repetitive nonemergency service, the supplier must obtain the physician certification before furnishing the service, and the statement must be dated no earlier than 60 days before the ride. The attending physician signs this certification.

What Is Considered Medically Necessary for an Ambulance?

Medicare requires the patient’s condition to make other transportation unsafe and to require both the ambulance and the level of service billed. The Medicare Benefit Policy Manual puts the comparison directly: another method cannot safely carry the patient. The manual applies that test whether or not another vehicle is actually available.

Bed confinement is one part of the test. A patient may need an ambulance without being confined to bed, and being confined to bed does not settle coverage. The patient’s ability to get out of bed, walk and sit belongs beside the medical reason other transportation would endanger their health. A diagnosis list cannot answer all of those questions.

The request, medical notes and run report need to tell a consistent story about the patient’s condition, the trip and the service. Origin and destination matter too. For a beneficiary with end-stage renal disease, Medicare’s covered routes include home to the nearest dialysis facility and back. The recurring appointment explains the destination. The clinical evidence explains the vehicle and care required.

Why Would Medicare Deny an Ambulance Claim?

Medicare can deny an ambulance claim when the patient’s condition does not support the transport or billed service level, the required certification is missing, or the trip fails the destination or other coverage requirements. Prior review applies those existing requirements earlier. The Centers for Medicare & Medicaid Services said the model would use the information already required for payment rather than create new clinical documentation requirements.

For an insider, the useful comparison is between the medical account and the claim. Which condition did the certification describe? What did the crew observe? What service did the biller claim Medicare should pay for? Those questions connect the authorization packet to the money.

When an Approved Dialysis Patient’s Condition Improves

If dialysis ambulance prior authorization was approved and the patient’s condition improved, Medicare still assesses medical necessity at the time of each later ride. The advance decision cannot establish a patient’s future condition.

A facility’s notes may describe improved mobility while the certification describes an earlier condition. The crew may observe sitting or walking that never reaches the billing narrative. The comparison has to include the reason ambulance care remained necessary on the particular trip, including any clinical needs beyond mobility.

We examine that change with the person who saw it. The relevant evidence connects what the facility knew, what the crew recorded, what reached the authorization reviewer and what the company ultimately billed. Treating an earlier approval as an answer to a later clinical contradiction puts the paperwork ahead of the patient.

Hart to Heart and the Patient the Crew Was Told to Find

The government’s complaint against Hart to Heart Transportation Services alleged that crews had to change how they documented patients who could sit, stand or walk. Its description of company policy shows why a complete-looking packet can tell the wrong story:

The government also alleged that management and billing personnel could alter patient-care narratives when crews refused. We see the absurdity in the alleged policy: the crew had to rearrange the scene until the patient fit the paperwork. Stage the patient. Bill the ride.

The same complaint connected prior authorization to what happened next. It alleged that a patient whom Hart to Heart stopped transporting after the model took effect received 397 subsequent dialysis treatments without ambulance transport. Another received 388 treatments without ambulance transport after the change, and a caretaker reported driving that patient in a car. Those allegations put actual transportation beside the condition described in earlier ambulance claims.

A former employee brought the whistleblower case, and the government later joined it. Hart to Heart paid $1,250,000 to resolve the allegations in the settlement announced in June 2019. The government’s allegations show why the firsthand account matters: who changed the patient’s description and how the company billed on it.

What CMS Measured When Review Moved Earlier

The Centers for Medicare & Medicaid Services reported a sharp reduction in repetitive ambulance use and spending in the model states compared with similar states. Its November 2020 summary of the Mathematica evaluation put the reductions at 63% for use and 72% for expenditures, approximately $550 million over four years. The population studied consisted of beneficiaries with end-stage renal disease, severe pressure ulcers, or both. The evaluation summarized by CMS found no overall effect on its quality measures or adverse events.

A whistleblower case needs the particular account of false claims: the patient’s condition, the documents used to support billing and the decisions inside the business. Hart to Heart’s allegations illustrate what that account can contain.

What the Insider Can Connect

In recurring transport, health care records and healthcare billing tell different parts of the story. A coordinator may know the regular route and the patient’s changing needs. A crew member knows what happened at pickup. A biller sees the descriptions used to support repeated claims. Each can hold a part of the story that an authorization decision alone cannot tell.

We work with that firsthand knowledge to connect the medical account, the request and the paid claims. The most useful detail may be the instruction to leave something out, the clinical description changed after the ride, or the earlier condition carried forward after staff knew it had changed. A whistleblower case under the False Claims Act can pay 15% to 30% of what the government recovers.

When the Approval and the Ride Tell Different Stories

If you know recurring ambulance claims used a patient description that staff knew was wrong, speak to one of our Whistleblower Experts about what the reviewer never saw. We work alongside you to build the case from the clinical facts and the billing decisions, and bring in ambulance fraud whistleblower lawyers who understand repetitive transport. Your knowledge from inside the operation and our judgment give that partnership its strength.