ED
CLAIMS ASSASSINS

EDUCATIONAL  |  May 2026

Eliott Dear: Surprise Billing vs Underpayment — Two Different Problems Most People Conflate

By Eliott Dear, Esq.

Most people who read about surprise billing in the press think it is one problem: large unexpected medical bills landing on patients. That is one of the two problems. The other one, structurally related but functionally distinct, is provider underpayment. Eliott Dear separates them because the dispute paths are completely different.

Problem One — Surprise Billing (Patient Liability)

The classic surprise-billing fact pattern: a patient receives emergency care at an in-network hospital. The hospital is in-network with the carrier. The physician providing the emergency service is not. The patient gets a large bill for the difference between what the physician billed and what the carrier’s allowed amount was — the balance bill. The patient had no meaningful choice in the matter; they could not select an in-network physician in an emergency room.

Problem Two — Underpayment (Provider Liability)

Underpayment is the shortfall in what the carrier sends the physician for the same service once balance billing is off the table. The physician billed, say, $1,800 for a complex laceration repair. The carrier sent $400. Before balance-billing protections, the physician could have billed the $1,400 difference to the patient. Where those protections apply, the physician cannot. The $400 is what the physician receives. The $1,400 is the underpayment.

Underpayment is not a "surprise" to the patient. The patient pays nothing beyond their in-network cost-sharing. The patient is largely whole. The physician is not.

Most journalism about surprise billing treats both problems as one. Most physicians describing their cash-flow pain to their billing companies are describing underpayment.

Why the Distinction Matters

If a patient calls a lawyer about a "surprise bill" they actually received in 2025-2026, the answer is usually short: where the balance-billing protections apply, you do not owe the balance; dispute it with the carrier, end of conversation. The patient-side path is mostly self-service through the carrier’s appeals process.

If a physician calls Eliott Dear about a "surprise bill" but the actual story is that they received $400 on a $1,800 procedure, the answer is completely different: state IDR, if the claim is eligible. Attorney-signed submission. FAIR Health UCR data.

The First-Hour Triage

Every Claims Assassins intake starts with the same question: who pays what under the current EOB? If the patient is paying more than their in-network cost-sharing, that is a surprise-billing issue (mostly self-service appeals). If the patient is whole but the physician is shorted, that is an underpayment issue (the Claims Assassins case type).

The two problems travel together in the public conversation. They do not travel together in the law office.

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edear@edrtb.com | 646-387-9133 | Send one EOB. No contract. 10% of the improvement.

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Eliott Dear is the founder and CEO of Claims Assassins (EDRTB LLC). Fordham Law School, Law Review. Formerly Clifford Chance LLP. NY Bar #4329546, active.

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