
People pay hospitals from an EOB because the patient-responsibility column looks like an invoice. It is not. The EOB can be wrong on the code, the network status, the deductible, or the claim that was never filed. The provider bill can be wrong on the same visit. Until those two pages agree, the number you are being asked to send is a guess. Cerapex reads them as a pair: what the plan processed, what the facility billed, and which office actually owns the next letter.
You upload every EOB for the visit and every provider statement that arrived after it. We match dates of service, procedure codes, and the claim number. Then we mark what belongs in a plan appeal, what belongs in a provider dispute, and what is simply a timing issue while a claim is still processing. You get that map before anyone asks you to pay. If a denial code is the whole story, we translate it into the next form, not into a shrug.
A denied claim and an unpaid bill are easy to confuse. If the plan never received the claim, the hospital may still be billing you as if you were uninsured. If the plan processed the claim as out of network, the next question is whether surprise-billing rules apply to that visit, that state, and that provider type. Those rules are not automatic on every statement. We tell you when they may apply and when they clearly do not, instead of treating every gap as a federal case.
If the EOB and the statement disagree, you should not pay either number until the mismatch is written down.
Appeals have clocks. Provider disputes have different clocks. Paying the patient-responsibility line while an appeal is open can make it harder to unwind. We note those windows on the file. If the EOB says you owe a copay that the contract should have bundled, that is a plan fight. If the hospital billed a code the EOB never saw, that is a provider fight. Sending one angry letter to both desks usually helps neither.
We look for codes that do not match across the two documents, duplicate claims for one visit, network status that flipped between the authorization and the EOB, deductibles that were applied twice, and denials that cite missing information the provider already had. We also look for assistant-surgeon, anesthesia, and lab pages that never produced an EOB at all. Those silent pages are often where the surprise balance lives.
This work is for people holding an EOB in one hand and a larger hospital bill in the other, people told a claim is still processing while collections have started, and people who received care they thought was in network until the EOB arrived. It is also for anyone who paid the EOB amount and then received a second statement from a physician group that never billed the plan. Bring both sides. The mismatch is the case.
Questions about this EOB