Medicare Part C, explained — without the marketing pitch.

What is Medicare Part C?

Medicare Part C is the formal name for Medicare Advantage. It's an alternative to Original Medicare (Parts A and B) offered by private insurance carriers approved by Medicare. When you enroll in a Part C plan, you're choosing to receive your Medicare benefits through that private carrier instead of directly through the federal government.

Part C plans bundle Parts A and B together, almost always include Part D drug coverage, and frequently add benefits Original Medicare doesn't cover — dental, vision, hearing, fitness benefits, and more. Many North Carolina Part C plans have $0 monthly premiums beyond your Part B premium, which is why they're so popular.

How Part C works

You keep paying your Part B premium to Medicare. The Medicare Advantage carrier receives a fixed monthly amount from CMS for each enrollee, then provides your benefits according to the plan's terms. Most Part C plans use HMO or PPO networks, which is the trade-off for their lower premiums and bonus benefits.

Part C plan types

• HMO (Health Maintenance Organization) — You pick a primary care physician who coordinates your care and provides referrals. Lowest costs but tightest network.
• PPO (Preferred Provider Organization) — More flexibility — see specialists without referrals, and out-of-network care is covered at higher cost.
• HMO-POS (Point of Service) — HMO with limited out-of-network access for certain services.
• PFFS (Private Fee-for-Service) — Less common; pays providers per service. You can see any provider that accepts the plan's terms.
• SNP (Special Needs Plans) — Designed for specific populations: chronic conditions (C-SNP), institutional (I-SNP), or dual-eligible Medicare + Medicaid (D-SNP).
• MSA (Medicare Savings Account) — Rare. High-deductible plan paired with a savings account. Drug coverage isn't included.

What Part C usually covers beyond Parts A and B

• Prescription drug coverage (Part D bundled)
• Routine dental: cleanings, exams, x-rays, sometimes major work
• Vision: annual eye exam, allowance for glasses or contacts
• Hearing: hearing exams, hearing aid allowance ($500–$2,500 typical)
• Fitness: SilverSneakers or similar gym memberships
• Over-the-counter (OTC) allowance for everyday health items
• Telehealth visits with low or no copay
• Worldwide emergency coverage
• Some plans: meal delivery after hospital stays, transportation to doctor visits, in-home support

Who Part C is a good fit for

• People who want low monthly premiums — many Part C plans cost $0/month
• People who don't travel extensively outside their state
• People who use a few doctors and want their network to be in-network
• People who'd benefit from extras (dental, vision, fitness)
• People comfortable with prior authorizations and referrals

Who should consider Original Medicare + Medigap instead

• People with significant healthcare needs who want predictable out-of-pocket costs
• People who travel extensively or live in two states
• People who see specialists at academic medical centers (Duke, UNC, MD Anderson, Mayo) and want full access
• People who don't want to deal with referrals or prior authorizations
• People whose doctors don't take many Medicare Advantage plans

The choice isn't permanent — you can switch between Medicare Advantage and Original Medicare during Annual Enrollment (Oct 15 – Dec 7) or Medicare Advantage Open Enrollment (Jan 1 – Mar 31). Caveat: if you switch from Medicare Advantage back to Original Medicare and want to add a Medigap policy, you may need to medically qualify for the Medigap. Always discuss this before switching.

Want to see specific Medicare Advantage plans in your NC ZIP? See plan options →