Qualified Medicare Beneficiary protection
QMB Billing Protection: What Medicare Providers Cannot Charge You
If you have QMB, Medicare providers generally cannot bill you for Medicare-covered Part A or Part B deductibles, copayments or coinsurance—even when the provider does not participate in Medicaid.
A QMB member has no legal obligation to pay Medicare cost sharing
Protected charges
Part A and Part B deductibles, copayments and coinsurance for Medicare-covered items and services.
Original Medicare and Medicare Advantage
The restriction applies in both systems, including Medicare Advantage plan cost sharing for covered Part A and Part B services.
Medicaid participation is not the test
A Medicare provider must follow the QMB billing prohibition even when the office does not accept Medicaid.
A zero state payment changes nothing
If Medicaid pays the provider nothing toward the cost sharing, the provider still cannot transfer that Medicare cost sharing to the QMB member.
What QMB does—and does not—protect
| Charge | May the provider bill the QMB member? | Why |
|---|---|---|
| Medicare Part A or B deductible | Generally no | It is Medicare cost sharing for a covered service. |
| Medicare Part A or B copayment or coinsurance | Generally no | QMB federal billing protection applies. |
| Medicare Advantage medical copayment | Generally no | The protection applies to QMB members in Medicare Advantage. |
| Part D prescription copayment | Yes, within LIS rules | Part D copayments are governed by Extra Help, not the Part A/B QMB billing prohibition. |
| Service Medicare does not cover | Possibly | The QMB rule does not make a non-covered service into a Medicare-covered service. |
| Small Medicaid copayment | Possibly | A nominal Medicaid copayment may apply where state rules permit it. |
What to do if you receive an improper QMB bill
- Do not ignore the document. Confirm that it is an actual provider bill rather than a Medicare Summary Notice or plan Explanation of Benefits.
- Check the service and coverage date. Make sure QMB was active when the Medicare-covered service was provided.
- Tell the billing office you had QMB. Ask the office to verify QMB status and remove the Medicare deductible, copayment or coinsurance.
- Provide proof when useful. A state eligibility notice, Medicaid/QMB card or Medicare Summary Notice may help the office correct its records.
- Ask the provider to recall collections. CMS instructs providers to recall invalid charges sent to a collection agency and refund invalid payments already collected.
- Escalate unresolved Medicare billing. Contact the Medicare plan when enrolled in Medicare Advantage, or call 1-800-MEDICARE when the office will not correct a prohibited charge.
Why an office may still say it cannot bill Medicaid
The office may be describing its inability to receive a Medicaid payment, but that is a different question from whether it may bill the QMB member. CMS states that all Original Medicare and Medicare Advantage providers and suppliers must follow the QMB billing restriction, not only providers that accept Medicaid.
The provider can determine how to submit any allowable claim to the state. The patient is not responsible for solving the provider’s Medicaid enrollment or reimbursement problem.
QMB-only and QMB Plus have the same Medicare billing protection
A QMB-only member receives the Medicare premium and cost-sharing assistance but does not automatically receive the full Medicaid benefit package. A QMB Plus member also qualifies for full Medicaid through another eligibility category. Both have the federal protection against being billed Medicare Part A and Part B cost sharing.
Read full versus partial dual eligibility for the broader benefit differences.
QMB billing FAQ
Can a doctor bill a QMB member if the doctor does not accept Medicaid?
No for Medicare cost sharing on Medicare-covered Part A and Part B services. CMS states that the protection applies to Medicare providers even when they do not accept Medicaid.
Does QMB protection apply to Medicare Advantage copays?
Yes. CMS states that the billing restriction applies to QMB members in Medicare Advantage as well as Original Medicare.
Can a pharmacy collect a Part D copay from someone with QMB?
Yes. The Part A and Part B billing prohibition does not eliminate Part D copayments. Extra Help determines the allowed Part D amount.
What if I already paid an invalid QMB bill?
Ask the provider to verify QMB status and refund the invalid payment. CMS instructs providers to remedy improper billing and refund invalid charges paid by the beneficiary.
Can a debt collector pursue prohibited QMB cost sharing?
The provider should recall prohibited charges sent to collections. Tell both the provider and collector about the QMB protection and escalate an unresolved Medicare billing problem.
Related dual-eligibility and Medicare guides
Get the Medicare side of the problem organized
Benjamin Thompson can help clients identify the plan, claim document and Medicare coverage involved and explain the next appropriate contact. Medicaid agencies, Medicare and providers control eligibility and billing corrections.
This article provides general educational information and does not determine Medicaid, Medicare Savings Program, Extra Help or D-SNP eligibility. Program rules, limits, benefits, networks, formularies and enrollment rights can change. Verify the exact person’s status with Medicare, the applicable state Medicaid agency and the plan before changing coverage. Thompson Medicare Brokerage is not connected with or endorsed by the U.S. government or the federal Medicare program.