Medicare Advantage replaces Original Medicare with an all-in-one private plan. Here is how Part C works, what it covers, and how to choose the right plan for 2026.
What is Medicare Advantage (Part C)?
Medicare Advantage, also called Part C, is an alternative to Original Medicare offered by private insurers approved by the Centers for Medicare & Medicaid Services (CMS). When you enroll, the plan provides all your Part A (hospital) and Part B (medical) benefits, and most plans add Part D prescription drug coverage plus extras like dental, vision, hearing, and fitness memberships. You still pay your Part B premium, but the plan handles your claims instead of the federal government. Plans use provider networks (HMO or PPO) and set their own copays, coinsurance, and annual out-of-pocket maximums. To compare your local options, call 1-800-MEDIGAP (1-800-633-4427).
How much does Medicare Advantage cost in 2026?
Many Medicare Advantage plans advertise a $0 monthly premium, but $0 premium never means $0 cost. You still pay your Part B premium ($185 per month in 2026 for most people), plus copays, coinsurance, and deductibles when you use care. The trade-off for low premiums is an annual out-of-pocket maximum; in 2026 the federal cap for in-network services is $9,250, though many plans set lower limits. Drug costs follow the plan's Part D formulary. Because pricing and networks vary widely by ZIP code, a licensed advisor at 1-800-MEDIGAP can model your real annual cost based on your doctors and medications.
Medicare Advantage vs. Original Medicare with Medigap
The core choice for new beneficiaries is Medicare Advantage versus Original Medicare paired with a Medigap (Medicare Supplement) policy. Medicare Advantage typically costs less upfront and bundles extras, but limits you to a network and requires prior authorization for many services. Original Medicare plus Medigap costs more in monthly premiums but lets you see any U.S. doctor who accepts Medicare with little to no claim paperwork and predictable bills. Roughly half of beneficiaries choose each path. The right answer depends on your health, budget, travel, and whether you want freedom of provider choice. Call 1-800-MEDIGAP for an unbiased side-by-side comparison.
Pros and cons of Medicare Advantage
Pros: lower or $0 premiums, an all-in-one plan, a built-in out-of-pocket maximum that Original Medicare lacks, and extra benefits like dental, vision, hearing, and over-the-counter allowances. Cons: provider networks restrict which doctors and hospitals you can use, referrals and prior authorization can delay care, coverage is mostly local so travel may not be covered, and plans change benefits and networks every year. According to KFF, prior authorization requirements are the most common complaint. Weighing these trade-offs against your own health needs is exactly what the licensed advisors at 1-800-MEDIGAP do at no cost to you.
When can you enroll in or change a Medicare Advantage plan?
You can first join Medicare Advantage during your seven-month Initial Enrollment Period around your 65th birthday. After that, the Annual Election Period (October 15 to December 7) lets anyone join, switch, or drop a plan for the following year. The Medicare Advantage Open Enrollment Period (January 1 to March 31) lets current Advantage members switch plans once or return to Original Medicare. Special Enrollment Periods apply after moving, losing other coverage, or other qualifying events. Missing these windows can mean waiting a full year, so call 1-800-MEDIGAP (1-800-633-4427) to confirm your eligibility dates.