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UHC Medicare Advantage Denials: Your Rights Under Federal Law

By AppealArmor | March 24, 2026 | 9 min read

UnitedHealthcare operates the largest Medicare Advantage program in the country. If you have a UHC Medicare Advantage plan and your claim was denied, your appeal rights are different from commercial plans. Medicare Advantage appeals are governed by CMS (Centers for Medicare & Medicaid Services), not ERISA, and you have powerful federal protections.

Medicare Advantage Denial Patterns at UHC

A landmark 2022 HHS Office of Inspector General report found that Medicare Advantage plans denied 13% of prior authorization requests that would have been approved under traditional Medicare. Common UHC Medicare Advantage denial categories include:

  • Post-acute care limits: Skilled nursing, home health, and inpatient rehabilitation days cut short based on algorithmic predictions rather than individual clinical assessment
  • Imaging denials: CT, MRI, and PET scans denied as not medically necessary despite physician orders
  • Medication denials: Prescription drugs denied through formulary restrictions not present in traditional Medicare Part D
  • Specialist referral denials: Referrals to out-of-network specialists denied even when no in-network specialist is available

Federal Protection

Medicare Advantage plans are required by federal law to cover everything that traditional Medicare covers. If traditional Medicare would cover a service, your MA plan must cover it too (42 CFR 422.101). This is a powerful argument in appeals: you can reference the corresponding Medicare NCD or LCD to prove coverage is required.

The 5-Level Medicare Advantage Appeal Process

Medicare Advantage has a structured 5-level appeal process with strict timelines:

Level 1Plan Reconsideration: File with UHC within 60 days. UHC has 30 days to respond (72 hours if expedited).
Level 2Independent Review: If Level 1 is denied, it automatically goes to an Independent Review Entity (IRE), currently Maximus Federal Services. Decision within 30 days.
Level 3ALJ Hearing: If the amount in dispute meets the threshold ($180 in 2026), you can request a hearing before an Administrative Law Judge at the Office of Medicare Hearings and Appeals.
Level 4Medicare Appeals Council: Review by the Departmental Appeals Board.
Level 5Federal Court: Judicial review if the amount meets the threshold ($1,840 in 2026).

Key Strategies for UHC Medicare Advantage Appeals

  • Cite traditional Medicare coverage. If the service is covered under traditional Medicare (check the Medicare Coverage Database at cms.gov), the MA plan must cover it.
  • Request expedited review. If delaying treatment could seriously harm your health, you can request an expedited appeal. UHC must respond within 72 hours.
  • Request continuation of benefits. If you are currently receiving a service (like home health or skilled nursing) and UHC wants to terminate it, you can request continuation of benefits during the appeal.
  • File a complaint with CMS. CMS directly regulates Medicare Advantage plans. Filing a complaint at 1-800-MEDICARE or online at medicare.gov can trigger a CMS investigation.
  • Contact your State Health Insurance Assistance Program (SHIP). Every state has a SHIP that provides free counseling to Medicare beneficiaries, including help with appeals.

Automatic Escalation

One significant advantage of Medicare Advantage appeals: if UHC denies your Level 1 reconsideration, the case automatically goes to the independent review entity (Level 2). You do not need to file a separate request. This is different from commercial plans where you must actively file each appeal level.

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