Medicare Advantage Explained: How Part C Works in 2026
Quick answer: Medicare Advantage (Part C) is a Medicare-approved alternative to Original Medicare, sold by private insurance companies. It must cover everything Original Medicare (Parts A and B) covers, and most plans also bundle in prescription drug coverage (Part D) plus extras like dental, vision, hearing, and fitness benefits. In exchange, you typically agree to use a defined network of doctors and hospitals. In 2026, average monthly premiums are around $14 (many plans are $0), with an out-of-pocket maximum that caps your worst-case yearly costs.
What Is Medicare Advantage?
Medicare Advantage is one of two main ways to receive your Medicare benefits (the other being Original Medicare). Instead of the federal government paying your claims directly, Medicare pays a private insurance company a set amount each month to manage your care. That insurer must, at minimum, cover everything Original Medicare covers — but nearly every Medicare Advantage plan goes further, adding prescription drug coverage and supplemental benefits Original Medicare doesn't include at all.
Common question — is Medicare Advantage the same thing as Medicare? Not exactly. Medicare Advantage is a private-insurer alternative for receiving your Medicare benefits — you're still on Medicare, and you still pay your Part B premium, but a private company administers your coverage instead of the government paying claims directly.
How Medicare Advantage Differs From Original Medicare
The core difference comes down to who's administering your benefits and how much flexibility you're trading for lower costs. Medicare Advantage plans are run by private insurance companies, while Original Medicare is administered directly by the federal government. Medicare Advantage usually bundles in prescription drug coverage, while Original Medicare requires a separate Part D plan to get the same protection.
Most Medicare Advantage plans also include extra benefits — dental, vision, and hearing — that Original Medicare doesn't cover at all. In exchange, Medicare Advantage typically limits you to an in-network group of doctors and hospitals, and HMO plans often require referrals to see specialists; Original Medicare, by contrast, lets you see any provider nationwide who accepts Medicare, with no referrals needed. Medicare Advantage plans are also required by law to cap your annual out-of-pocket spending, something Original Medicare doesn't include on its own unless it's paired with a Medigap policy.
Broadly speaking, Medicare Advantage tends to suit people who want lower costs and added benefits and are comfortable with a network, while Original Medicare tends to suit people who prioritize maximum provider flexibility.
Types of Medicare Advantage Plans
Not all Medicare Advantage plans work the same way. The most common structures:
HMO (Health Maintenance Organization): Requires you to use in-network doctors and get referrals to see specialists. Typically the lowest premiums and out-of-pocket costs.
PPO (Preferred Provider Organization): Lets you see out-of-network providers at a higher cost, and generally doesn't require referrals. More flexibility, usually for a somewhat higher premium.
HMO-POS (Point of Service): An HMO with limited out-of-network flexibility for certain services.
PFFS (Private Fee-for-Service): Less common; providers can accept or decline the plan's payment terms on a visit-by-visit basis.
SNP (Special Needs Plan): Designed for people with specific chronic conditions, those dually eligible for Medicare and Medicaid, or those in institutional care.
Common question — should I choose an HMO or PPO Medicare Advantage plan? If keeping costs as low as possible matters most and you're comfortable with a defined network and referrals, an HMO often makes sense. If you split time between locations, have providers across multiple health systems, or want the flexibility to go out-of-network occasionally, a PPO is usually the better fit.
What Does Medicare Advantage Cost in 2026?
Average monthly premium: approximately $14, though many plans — including many available in Colorado — are offered at $0/month. You still pay your standard Part B premium ($202.90/month in 2026) regardless of which Medicare Advantage plan you choose.
Deductibles: Vary by plan; some plans have no deductible at all, others have separate medical and drug deductibles.
Copays vs. coinsurance: Most Medicare Advantage plans use fixed-dollar copays (e.g., $20 for a primary care visit) rather than the 20% coinsurance structure under Original Medicare, which can make costs more predictable.
Maximum out-of-pocket (MOOP): Every Medicare Advantage plan is required to cap your annual out-of-pocket spending on Part A and Part B services. Once you hit that cap, the plan pays 100% of covered costs for the rest of the year — a protection Original Medicare alone doesn't offer.
Extra benefits: Many plans include dental, vision, hearing, over-the-counter allowances, fitness program memberships, and in some cases transportation or meal benefits after a hospital stay. Specific extras vary significantly by plan and by county, so it's worth comparing carefully rather than assuming all plans include the same perks.
Medicare Advantage Star Ratings: What They Mean
Every Medicare Advantage plan is scored annually by CMS on a 1-to-5 star scale, based on measures like member satisfaction, preventive care, chronic condition management, and customer service. In 2026, CMS tightened its scoring standards and added new equity-focused measures, so ratings shifted for a number of plans compared to prior years.
Why star ratings matter to you:
Plans with 4 stars or more often qualify for federal quality bonus payments, which many insurers reinvest into richer benefits or lower costs.
Star ratings can change every year — a plan that was highly rated last year isn't guaranteed to hold that rating going forward, which is one reason it's worth reviewing your plan annually rather than assuming it's still your best option.
When Can You Enroll in Medicare Advantage?
Initial Enrollment Period (IEP): The 7-month window around your 65th birthday (3 months before, your birthday month, 3 months after).
Annual Enrollment Period (AEP): October 15 – December 7 each year. Switch into, out of, or between Medicare Advantage plans, effective the following January 1.
Medicare Advantage Open Enrollment Period (MA OEP): January 1 – March 31. If you're already enrolled in a Medicare Advantage plan, you can make one additional change — switch to a different Medicare Advantage plan, or drop it and return to Original Medicare (with the option to add a Part D plan).
Special Enrollment Periods (SEP): Triggered by qualifying events such as moving out of your plan's service area, losing employer coverage, or a plan losing its 5-star rating.
Common question — can I switch Medicare Advantage plans every year? Yes. Medicare Advantage plans, provider networks, drug formularies, and extra benefits can all change annually, so it's worth reviewing your coverage each fall during the Annual Enrollment Period even if you've been happy with your current plan.
Is Medicare Advantage Right for You?
Medicare Advantage tends to be a strong fit if you:
Want predictable copays and an annual out-of-pocket cap
Would benefit from bundled dental, vision, hearing, or fitness benefits
Are comfortable using a defined network of doctors and getting referrals when needed
Don't split time extensively between multiple states or regions
It may be worth comparing against Original Medicare plus a Medigap policy if you:
Want the flexibility to see any provider who accepts Medicare, nationwide
Travel frequently or split time seasonally between locations
Prefer more predictable costs over the course of the year, even with a higher fixed premium
Because plan availability, networks, and benefits vary by county — and can change every year — the only way to know what actually fits your situation is to compare your real, current options rather than relying on national averages.
Frequently Asked Questions
What is Medicare Advantage? Medicare Advantage (Part C) is a Medicare-approved alternative offered by private insurers that covers everything Original Medicare covers, and usually bundles in prescription drug coverage and extra benefits like dental and vision.
Is Medicare Advantage better than Original Medicare? Neither is universally "better" — Medicare Advantage often costs less and includes more extra benefits, while Original Medicare (especially paired with a Medigap policy) offers more provider flexibility. The right choice depends on your doctors, health needs, budget, and travel habits.
Do I still pay my Part B premium if I have Medicare Advantage? Yes. Medicare Advantage replaces how your Part A and Part B benefits are delivered, but you still pay your standard Part B premium in addition to any Medicare Advantage plan premium.
Can I have both Medicare Advantage and a Medicare Supplement? No. Medigap policies are designed to work alongside Original Medicare and generally cannot be used with a Medicare Advantage plan.
How much does Medicare Advantage cost per month in 2026? The national average premium is around $14/month, though many plans — including many in Colorado — are available at $0/month. You'll still owe your Part B premium regardless of which path you choose.
Can I switch out of Medicare Advantage if I don't like it? Yes. You can change plans during the Annual Enrollment Period each fall, make one change during the Medicare Advantage Open Enrollment Period (January–March), or switch back to Original Medicare, subject to Medigap underwriting if you add a supplement later.
Compare Your Medicare Advantage Options in Grand Junction
Plan availability, networks, and benefits are different in every county — and they change every year. If you'd like help comparing the actual Medicare Advantage plans available where you live, schedule a free, no-obligation consultation today.
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This page is for educational purposes and does not constitute a recommendation of any specific plan or carrier. We are not connected with or endorsed by the U.S. government or the federal Medicare program.