Billed as a QMB? You Likely Owe $0
If you have both Medicare and Medicaid through the Qualified Medicare Beneficiary (QMB) program, providers are not allowed to bill you for Medicare deductibles, coinsurance, or copays. If you were billed anyway, the charge should be recalled and any payment refunded. Check your bill below.
Were you wrongly billed as a QMB?
Three quick questions. Nothing is saved, and there is no signup.
1. Do you (or the person billed) have both Medicare and Medicaid, or get help paying for Medicare through a Medicare Savings Program (QMB)?
Signs you may be a QMB: you have a Medicaid card, you got a letter about a Medicare Savings Program or QMB, or your Part B premium is paid for you.
2. Did a doctor, hospital, lab, or debt collector bill you for a Medicare deductible, copay, or coinsurance?
What a QMB is, and why you can't be billed
QMB (Qualified Medicare Beneficiary) is a Medicare Savings Program for people with limited income and resources. If you qualify, Medicaid pays your Medicare Part A and Part B premiums and your cost-sharing. Because Medicaid is responsible for that cost-sharing, federal law makes it off-limits for providers to bill you. About 8.7 million people, roughly 1 in 8 people with Medicare, are in the QMB group.
The rule providers break
Federal law (Social Security Act sections 1902(n)(3)(B) and 1866(a)(1)(A)) prohibits all Medicare providers and suppliers from billing a QMB for Medicare cost-sharing. This is true whether you have Original Medicare or a Medicare Advantage plan, and it applies to every provider who takes Medicare, not just those who also accept Medicaid.
- A provider who improperly billed you must recall the charge, including from a collection agency.
- If you already paid, the provider must refund what you paid.
- The protection stands even when Medicaid pays the provider nothing.
Improper QMB billing is common: about 1 in 6 Medicare-related complaints to the Consumer Financial Protection Bureau involve QMB billing, and in 2024 the CFPB and CMS acted together to stop illegal billing of the lowest-income Medicare recipients. Many QMBs do not know the rule, or fear upsetting their provider, and pay money they do not owe.
What to do if you were billed
Tell the provider (and any collector) that you are a QMB and cannot be billed for Medicare cost-sharing. Ask them to recall the bill and refund anything you already paid.
Show proof of your QMB status: your Medicaid card or your Medicare Savings Program approval letter.
If it is not fixed, report improper billing by calling 1-800-MEDICARE (1-800-633-4227).
Don't want to fight it yourself?
CareRoute Bill Defense can handle it for you: we confirm the QMB protection with the provider or collector, demand that the bill be recalled and any payment refunded, and follow it through. It is especially helpful if the bill is already in collections or you are helping an older parent sort it out.
Send us the billFree to submit. You only pay if we save you money.
Frequently asked questions
I have Medicare and Medicaid. Can a provider bill me for a copay, coinsurance, or deductible?
If you are a Qualified Medicare Beneficiary (QMB), no. Federal law prohibits all Medicare providers and suppliers from billing you for Medicare cost-sharing on covered services, even if Medicaid pays the provider nothing. This applies whether you have Original Medicare or a Medicare Advantage plan.
What is a QMB?
QMB (Qualified Medicare Beneficiary) is a Medicare Savings Program for people with limited income and resources. If you qualify, Medicaid pays your Medicare Part A and Part B premiums and your cost-sharing, so providers are not allowed to bill you for it. About 8.7 million people, roughly 1 in 8 people with Medicare, are in the QMB group.
A provider already sent my bill to collections. What can I do?
A provider who improperly billed a QMB must recall the charges, including from a collection agency, and refund any amount you already paid. You can point them to the federal QMB billing rules, call 1-800-MEDICARE to report it, or have CareRoute handle it for you.
How do I prove I am a QMB?
Show the provider your Medicaid card or your Medicare Savings Program approval letter. Providers can also verify your QMB status through Medicare and state systems before billing you.
Does this protection apply to Medicare Advantage plans?
Yes. The prohibition on billing QMBs applies to all Medicare providers and suppliers, including those treating Medicare Advantage members, not only providers who accept Medicaid.
What if Medicare did not cover the service at all?
The QMB protection covers your cost-sharing on services Medicare covers. If Medicare denied a service as not covered, that charge is treated differently, but it is still worth a review, because improper denials, coding mistakes, and other billing errors are common and can often be corrected.
Related
Sources & references
This is general information, not legal advice, and does not create a client relationship. QMB rules and Medicare amounts are set by federal law and can change. Confirm your status with Medicare or your state Medicaid program. Last updated: July 2026.