In Original Medicare, the document sent to beneficiaries summarizing the services billed and the amounts Medicare paid is the:

Why A is correct

The Medicare Summary Notice (MSN) is the statement that Original Medicare sends to beneficiaries, generally every three months, after services are billed. It lists each service or supply, the provider's charge, the amount Medicare approved, what Medicare paid, and the amount the beneficiary may still owe. The MSN is the key claims documentation tool in Original Medicare, helping beneficiaries track their utilization, spot billing errors, and identify potential fraud. Option A correctly names the Medicare claims summary document.

Why the other options are wrong

• B) A certificate of creditable coverage is the HIPAA document issued when group health coverage ends, not a Medicare claims summary. The certificate of creditable coverage is a HIPAA portability document, not a claims statement.
• C) An outline of coverage is a consumer disclosure document for Medigap or health insurance policies describing benefits and exclusions, not a claim statement. An outline of coverage describes policy benefits before purchase and is not a billing record.
• D) Evidence of insurability is an underwriting record used to support an application for coverage; it is not a Medicare billing summary. Evidence of insurability supports underwriting and has no role in Medicare claims.

Memory hook

MSN = Medicare's itemized receipt, sent every three months, showing who billed and who paid.