Repricing, reference-based pricing, out-of-network negotiation, and payment integrity vendors all sell the same headline: a savings percentage. Investors diligencing these companies tend to take the number as a product metric. It is a contract term. I ran a claims repricing and direct provider contracting organization, and I have sat on the TPA side receiving the invoices. The number is real, but it means something narrower than the deck implies.
Savings against what?
A hospital bills $100,000. The vendor reprices it to $30,000 and reports $70,000 in savings, or 70 percent. The plan sponsor reads that as $70,000 it would otherwise have spent. It would not have. Through a network it might have paid $45,000. Under a strong reference-based pricing methodology it might have paid $28,000. The savings that matter are measured against the realistic alternative, and the alternative is almost never billed charges.
Ask the company to restate its savings against what the plan would otherwise have paid, and separately against a Medicare multiple. If it cannot produce either, the reported figure is a function of how aggressively the provider bills, which the vendor does not control and the investor cannot underwrite.
Who calculates the number?
In most arrangements the vendor calculates its own savings and invoices on that figure. The TPA loads the repriced amount, pays the claim, and pays the vendor. Nobody in that chain is paid to check the math. When a TPA does reconcile, the common findings are savings claimed on claims that were later reversed, savings claimed on claims where the plan's own contract would have produced a lower rate, and duplicate savings where two vendors touched the same claim.
For diligence, the verification source is the TPA's paid-claims data for a sample of the vendor's clients. It shows the billed amount, the allowed amount, what the plan paid, and any subsequent adjustments. Compare that to the vendor's savings report for the same claims. The gap is the audit finding, and it is also the churn risk, because a sophisticated TPA or plan sponsor will eventually run the same comparison.
What is the fee charged on?
Contingency fees, typically a percentage of reported savings, are the norm in this segment and the reason the definitions above matter. A fee on billed-charge savings rewards the vendor for the size of the provider's chargemaster. A fee on savings below a network rate rewards the vendor for beating a benchmark it did not set. A flat per-employee-per-month fee removes the incentive to inflate, and also removes the story about aligned interests that sells the product.
Read the fee terms for the denominator, the cap if any, and what happens on reversal. A vendor that keeps its fee when the claim is later paid in full has revenue that its clients will eventually dispute. Then look at how much of the company's revenue comes from a handful of TPA relationships. In this segment, the TPA is usually the real customer, and the TPA can switch vendors without the plan sponsor noticing.
What happens after the reprice?
Reported savings are booked when the vendor returns the repriced claim. The provider has not yet responded. What follows is where the value is either proven or lost: the provider accepts the amount, appeals it, balance bills the member, or takes the claim into a dispute process. Every one of those paths costs somebody money, and most of it does not appear in the vendor's report.
For out-of-network emergency and certain facility-based claims, the No Surprises Act moved that dispute into federal independent dispute resolution, with its own fees and its own track record on outcomes. I worked on that rulemaking, and the practical effect for investors is that a vendor's savings on those claim types are provisional until the IDR process finishes. For claims outside the Act, balance billing remains the pressure point. A reference-based pricing vendor with strong reported savings and a weak member advocacy function is exporting its cost to the plan sponsor's HR department, and that is what drives the termination.
Ask for provider acceptance rates by claim type, appeal volume and outcomes, balance-bill volume, reversal rates, and the average time from reprice to final settlement. A vendor that tracks these will hand them over. A vendor that does not track them is reporting a number it cannot defend.
What should be in the data room?
Savings restated three ways: against billed charges, against the realistic alternative rate, and against a Medicare multiple.
A paid-claims sample from a client TPA, reconciled against the vendor's savings report for the same claims.
Fee terms by client, including the denominator, any cap, and the treatment of reversals.
Provider acceptance, appeal, balance-bill, and reversal rates by claim type, with time to final settlement.
IDR volume and outcomes on claims subject to the No Surprises Act, including fees paid.
Revenue concentration by TPA relationship, and every TPA or plan sponsor that terminated in three years with the reason.
The companies in this segment that hold up are the ones whose savings survive the reconciliation. That is a smaller number than the headline, and it is the one worth paying for.