Tuesday, July 7, 2026Vol. XII · No. 47

The Health Almanac

Field Reports · Enrollment Wires · Beneficiary Tools

Primer · Medicare Advantage

Medicare Advantage: Private Bundles That Now Cover the Majority

Part C plans replace Original Medicare with a private, network-based bundle. Often $0 premium; the trade-off is prior authorization, narrower networks, and appeal rights that must be exercised to work.

Coverage Desk · Updated this quarter · 11 min read

Medicare Advantage — Part C — is Medicare coverage delivered by a private insurer under contract with the Centers for Medicare & Medicaid Services. Enrollees give up direct fee-for-service Original Medicare in exchange for a bundled plan that pairs hospital, medical, and (usually) drug coverage with extra benefits.

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How the plan is structured

Most Advantage plans are HMOs or PPOs. The carrier receives a fixed monthly capitation payment from CMS for every enrollee and, in return, assumes responsibility for the enrollee's covered care. Because the carrier keeps the difference between capitation and paid claims, plan design and utilization management directly shape profit.

What is different from Original Medicare

  • Networks. Care is generally in-network only (HMO) or steeply cheaper in-network (PPO). Original Medicare has no network.
  • Prior authorization. Advantage plans routinely require approval before advanced imaging, post-acute care, and specialty drugs. Original Medicare does not.
  • Extra benefits. Dental, vision, hearing, fitness, over-the-counter cards, and transportation are common. Original Medicare covers none of these.
  • Out-of-pocket maximum. Advantage plans have an annual cap (federal maximum $9,350 in-network for 2025). Original Medicare has none unless paired with Medigap.
  • Premium. Many plans advertise $0 monthly premium. You still pay the Part B premium ($185/mo standard for 2025).

Star Ratings

CMS scores every plan 1–5 stars annually on quality, member experience, and complaint volume. A 4- or 5-star plan qualifies for a bonus payment and a year-round special enrollment period. Plans below 3 stars for three consecutive years can be terminated.

Prior authorization and appeals

CMS's 2024 rule tightened prior-authorization standards, but denial rates still vary widely by carrier. Nationally, more than 80% of Medicare Advantage prior-authorization denials that are appealed are overturned. Beneficiaries have five levels of appeal, ending in federal district court. Track deadlines closely — most levels have 60-day windows.

When Advantage is the right choice

  • You are comfortable inside a defined network.
  • You want dental, vision, hearing or OTC benefits without buying separate policies.
  • Your preferred physicians and hospitals are in-network and expected to remain so.
  • You cannot afford or medically qualify for a Medigap policy in your state.

When Original Medicare with Medigap is the better fit

  • You travel or split time across states and want nationwide access.
  • You have a chronic condition or planned procedures that could trigger prior authorization.
  • You value predictable out-of-pocket costs over lower premiums.
  • You are still in your 6-month Medigap open enrollment window and can obtain a policy without medical underwriting.