Questions & answers · Health insurance
How can I find out if Medicare denied a claim?
Health insuranceSlow or stuckChecked Nov 6, 2026
From K.Actuary, founded by Sangmin Kwon, ASA · sources checked 2026-11-06 · Source: Medicare.gov · Filing a claim View original ↗
In short
- Check your Medicare Summary Notice or your online Medicare account.
- Claims must be filed within 12 months.
- If your provider has not filed, ask them to.
What this means
Medicare.gov says to check the Medicare Summary Notice you get in the mail. You can also log into your Medicare account or check your plan's claim statements [1]. This shows whether claims are filed on time.
A claim must be filed within 12 months of the date of service, unless an exception applies [1]. If your provider has not filed it, ask them to file it [1]. If you disagree with a decision by Medicare or your plan, you can file an appeal [1].
Your next step
Open your Medicare account or your latest Medicare Summary Notice and look up the date of service. Write down the date you asked the provider to file. The deadline these sources give is 12 months from the date of service [1].
Check it yourself
Your Medicare account and Medicare Summary Notice show the claim. The sources do not say how long Medicare takes to process a filed claim — "Don't know yet".
Where this comes from (1)
[1] Medicare.gov · Filing a claim · checked 2026-11-06
Medicare claims must be filed no later than 12 months (or 1 full calendar year) after the date when the services were provided unless an exception applies. If a claim isn't filed within this time, Medicare won't pay its share … (MSN) you get in the mail, log into your secure Medicare account , or check your plan's claims statements … contact your doctor, provider, or supplier, and ask them to file a claim for the ser…
How we found this
We matched your question to 1 official source, quoted the exact lines, and re-checked each quote against its source on 2026-11-06.
What we don’t know yet
Your own plan or notice may say something different. If your letter cites another rule, send it and we will look again.
Every answer is checked against the official rule it quotes.
Information only — not legal advice. Your plan, insurer or agency decides.
This answer quotes the official sources listed above, with the date we checked them. Your own policy, notice and state rules control. We are not your lawyer or your insurer. We don’t file, argue or negotiate claims for you — you send any letter or form yourself.
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Answer id CQ4606. Spotted an error? Tell us.