Medical billing
Medicare and Medicaid billing limits, the QMB prohibition and the appeals ladder
United States (federal)
- Rule id
- medical.us-medicare-medicaid
- Version
- 1.0.0
- In force from
- January 1, 1993
- Last read against its sources
- August 5, 2026
- Countries bound
- United States
In plain language
What this regime says.
Medicare and Medicaid cap what a provider may collect from a beneficiary, and the caps are much tighter than commercial ones. A provider accepting assignment may collect only the deductible and coinsurance; one that does not may not exceed the limiting charge of 115 per cent of the non-participating fee schedule amount; a Qualified Medicare Beneficiary may not be billed for Medicare cost sharing at all; and a Medicaid provider takes the programme payment as payment in full.
Who is covered
Medicare beneficiaries, Medicaid recipients, and people enrolled in both. Medicare Advantage enrollees are covered by the plan's own rules and a different appeals process under 42 CFR Part 422 Subpart M.
What you get
A bill limited to the statutory amount, a refund of anything charged above it, no liability for a denied service where no valid advance notice was given, and a five-level appeal that is free and has no minimum amount at its first two levels.
Where claims go wrong
- Paying the difference between the provider's charge and Medicare's approved amount. For a participating provider there is no such difference to pay.
- Not knowing about QMB status, or not mentioning it. The prohibition is absolute and one sentence usually resolves the bill.
- Treating a denial as the end. Redetermination and reconsideration are free, have no minimum amount, and change a large share of decisions.
- Accepting an Advance Beneficiary Notice at face value. Routine, vague or late notices do not shift liability.
- Missing the 120 days for a redetermination. The clock runs from the Medicare Summary Notice, and good cause can extend it — but only if you ask.
Authority
Every citation,
with its pinpoint.
- 42 U.S.C. § 1395u(b)(3)(B)(ii)Social Security Act § 1842, Medicare Part BURL verified 2026-08-05§ 1842(b)(3)(B)(ii) — a provider who accepts assignment agrees to accept the reasonable charge determined by the carrier as the full charge, and may collect from the beneficiary only the deductible and coinsurance
- 42 U.S.C. § 1395w-4(a)(3)Social Security Act § 1848 (Payment for physicians' services)URL verified 2026-08-05§ 1848(a)(3) — the fee schedule amount for services furnished by a non-participating physician who does not accept assignment is 95 per cent of the amount for a participating physician
- 42 U.S.C. § 1395w-4(g)(2)(C); 42 CFR § 414.48Social Security Act § 1848(g); Medicare Program regulations, 42 CFR Part 414URL verified 2026-08-05§ 1848(g)(2)(C) — the limiting charge is 115 per cent of the recognised payment amount for a non-participating physician; 42 CFR § 414.48 — limits on the actual charges of non-participating suppliers, and the obligation to refund a charge that exceeds the limit
- 42 U.S.C. § 1396a(n)(3)Social Security Act § 1902(n)(3), Medicaid State plan requirementsURL verified 2026-08-05§ 1902(n)(3)(A)-(B) — the Medicaid payment for Medicare cost sharing is payment in full, and the provider may not bill a qualified Medicare beneficiary for the balance of any Medicare deductible, coinsurance or copayment
- 42 CFR § 447.15Medicaid Program regulations, 42 CFR Part 447 (Payments for services)URL verified 2026-08-05§ 447.15 — a State plan must provide that the agency limits participation to providers who accept, as payment in full, the amounts paid by the agency plus any deductible, coinsurance or copayment required by the plan
- 42 CFR §§ 405.942 and 405.950Medicare Program regulations, 42 CFR Part 405 Subpart IURL verified 2026-08-05§ 405.942(a) — a request for redetermination must be filed within 120 calendar days of the date of receipt of the notice of initial determination; § 405.942(b) — extension of the time limit for good cause; § 405.950 — the contractor must issue its redetermination within 60 days
Sources
Where a figure is indexed, converted or published by a regulator rather than fixed in the instrument, the provenance is recorded separately. Anything marked as a modelled estimate is exactly that — a model, not a statutory number.
- Medicare appeals — the five levels, the forms and the current amounts in controversyCenters for Medicare & Medicaid Servicesretrieved 2026-08-05
- Prohibition on billing dually eligible individuals enrolled in the QMB programmeCenters for Medicare & Medicaid Services, Medicare-Medicaid Coordination Officeretrieved 2026-08-05
- Advance Beneficiary Notice of Noncoverage (form CMS-R-131) and the instructions governing when it may and may not be issuedCenters for Medicare & Medicaid Servicesretrieved 2026-08-05
What it imposes
Clocks, defences and the ladder.
Documents
What this regime can produce.
The same claim type elsewhere
Other rights in the same countries
Does this one reach your facts?
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Not a law firm. Not legal advice. You send it yourself. This page describes a law; it is not advice about your situation and no outcome is promised.