The Medical Bill
Detective
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EOB meaning: what an Explanation of Benefits is

EOB stands for Explanation of Benefits. It's the summary your health insurer sends after it processes a claim. Here's what it tells you and how to use it.

Your EOB is generally not a bill

An EOB comes from your insurance company, not the provider. It explains how a claim was processed: what was charged, what your plan allowed, what the plan paid, and what it says is left for you.

Because it is a summary and not a request for payment, an EOB usually says something like 'this is not a bill' somewhere on the page.

The words on your EOB

What to do with your EOB

The most useful thing you can do with an EOB is compare its 'patient responsibility' with the balance on the provider's statement. When the two differ, that is a good reason to call both.

Keep every statement. Balances change as insurance processes the claim, and having the earlier version makes questions much easier to ask.

If you appeal, use the instructions, addresses and timeframes printed on your own documents. Attach the EOB, the bill and the denial letter, and keep copies of everything you send.

Have a bill and an EOB that don't match?

Upload both and the Detective will compare them line by line and explain any potential discrepancies in plain English.

Compare my bill and EOB

Important: The Medical Bill Detective provides informational assistance based on the documents you provide. It does not provide medical, legal, insurance, or financial advice and does not determine whether a bill is legally valid, fraudulent, or incorrect. Potential discrepancies should be verified with your healthcare provider and/or insurance company.

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