Free tool
Safely check a Medicare letter with AI
Paste a confusing letter and this finds and removes your Medicare number, Social Security number, date of birth and address, then hands you a safe version plus the prompt to use.
What this can't do: No pattern catches everything, and names are left in. Read the result yourself before you paste it anywhere.
Why bother removing anything?
A chatbot is genuinely good at turning a confusing letter into plain English. The catch is that what you paste may be stored, and may be used to train the service. That's fine for a recipe. It is not fine for a document with your Medicare number on it.
Your Medicare number is worth money to the people who steal them. It's the key to billing Medicare in your name, and unlike a credit card, it isn't easy to swap for a new one. So get the explanation without handing over the number.
This tool knows what a Medicare number looks like (11 characters in a fixed pattern that deliberately never uses the letters S, L, O, I, B or Z), so it can find one even when it's printed without dashes. It also looks for Social Security numbers, old-style claim numbers, phone numbers, street addresses, ZIP codes and account numbers.
It will not catch everything, and it doesn't try to remove names. Read the cleaned version before you paste it. The full routine, including which settings to change first, is in How to use AI to make sense of a Medicare letter.
Nothing you type here leaves your device
This tool runs entirely inside your own browser. What you enter is never sent to us, never stored, and never shared. You can disconnect from the internet after the page loads and it will still work. That is deliberate: we tell people never to hand their Medicare number to a website, so this site had better not be one that asks.
Where these numbers come from
- CMS — the Medicare Beneficiary Identifier (MBI) format
- Medicare.gov — protecting yourself from Medicare fraud
These are the 2026 amounts. CMS usually publishes the next year's figures in mid-November and SSA in October; after that, check the source links before relying on a result.
Free, official help with your own decision
This tool does arithmetic on published rules. For a decision about your own coverage, use the official sources. They're free and they don't sell anything.
- Medicare.gov The official government site to compare plans and check coverage yourself.
- SHIP: free local counseling Your State Health Insurance Assistance Program: free, unbiased Medicare help.