Start with the three amounts

Find the amount the provider charged, the amount the plan allows, and the amount listed as your responsibility. Those numbers describe different things and should not be treated as interchangeable.

Then compare the service date, provider, and procedure description with the care you received.

Read the processing notes

Look for reason or adjustment codes beside any denied, reduced, or patient-responsibility amount. The short description may not tell the whole story, so note the code before you call.

  • Was the provider processed in or out of network?
  • Was an authorization or referral expected?
  • Is the claim final, denied, or waiting for information?

Reconcile before paying

Match the EOB to an itemized provider bill. If the balances differ, ask which claim or line item produced the provider’s amount and whether either party needs to correct its record.

Use this to prepare—not to replace the plan.

Your plan documents, written notices, and applicable law govern your situation. If a deadline or benefit is unclear, ask the insurer to identify the controlling document in writing.