Medicare Advantage vs. Original Medicare in 2026: An Honest Comparison

If you’re turning 65 on the First Coast, or you’ve just moved down to Florida and it’s your first fall as a full-time resident, the Medicare mailbox blitz can feel relentless. Glossy Advantage brochures promise $0 premiums, dental, and gym memberships. Quieter voices warn you never to give up Original Medicare. Both sides have a point, and neither is telling you the whole story.

This is the honest version. Roughly 55% of eligible Medicare beneficiaries now choose Medicare Advantage — that’s about 35.2 million people out of 64.2 million, according to KFF’s 2026 enrollment analysis. It’s the most popular option in the country and it’s genuinely a great fit for many people. But “most popular” is not the same as “best for you,” and the trade-offs are real. Here in Jacksonville and across Northeast Florida — where so many households are split between year-round residents and snowbirds who summer up north — the travel and network questions matter more than the marketing ever lets on.

At Mere Benefits, we don’t earn our keep by pushing one path. This guide walks through what each option actually costs in 2026, how networks and prior authorization really work, where the “extra benefits” help and where they don’t, and a simple framework for deciding. This article is educational and not medical, tax, or legal advice — figures are current as of 2026 and change annually.

The one thing both paths have in common: Part B

Before we compare anything, clear up the most common misconception. Everyone on Medicare — Advantage or Original — pays the Part B premium. Medicare Advantage does not replace Part B; it’s a different way to receive your Parts A and B benefits, delivered through a private insurer.

For 2026, CMS set the standard Part B premium at $202.90 per month, a $17.90 jump from $185.00 in 2025. The Part B deductible is $283, and the Part A inpatient hospital deductible is $1,736 per benefit period. Higher earners pay a Part B surcharge (IRMAA) on top of the standard premium, based on your tax return from two years prior.

So when a brochure trumpets a “$0 premium” Advantage plan, read it precisely: the plan charges no additional premium, but you still pay the $202.90 Part B premium every month. That’s true on both paths. What differs is everything that happens after Part B — and that’s where the real decision lives. If you’re still getting oriented, our Medicare basics guide lays out how Parts A, B, C, and D fit together.

2023

$164.90

2024

$174.70

2025

$185.00

2026

$202.90

Source: CMS Parts A & B premium fact sheets, 2023–2026.

How the two paths actually work

Original Medicare is the traditional government program: Part A (hospital) and Part B (doctors and outpatient care). You can see any provider in the country that accepts Medicare — and the overwhelming majority do. Original Medicare pays its share, and you’re responsible for the rest: the 20% Part B coinsurance, deductibles, and hospital costs. Crucially, Original Medicare on its own has no annual cap on what you might owe. To fix that, most people add a Medicare Supplement (Medigap) policy to cover the gaps, plus a standalone Part D drug plan.

Medicare Advantage (Part C) bundles Parts A, B, and usually D into a single private plan — an HMO or PPO run by a company like Humana, UnitedHealthcare, or Florida Blue. In exchange for using the plan’s network and rules, you often get a low or $0 plan premium plus extras Original Medicare doesn’t offer: dental, vision, hearing, fitness, and sometimes over-the-counter allowances. The trade-off is that the insurer manages your care through networks and prior authorization, and there’s an annual out-of-pocket maximum that protects you — but it can be substantial. Our Medicare Advantage overview goes deeper on plan types.

Here’s the growth story in one picture. Advantage has climbed from a minority option to the majority choice in under two decades.

19%

2007

33%

2017

51%

2023

55%

2026

Source: KFF, Medicare Advantage in 2026: Enrollment Update and Key Trends.

That 2026 growth — up about 1.1 million enrollees, or 3%, over 2025 — was driven largely by Special Needs Plans (SNPs), which serve people who are dually eligible for Medicare and Medicaid or who have specific chronic conditions. Nearly 1 in 4 Advantage enrollees is now in an SNP. It’s worth knowing that this isn’t a stampede of healthy 65-year-olds; a big share of the recent growth is among people with complex, subsidized needs.

Cost: month-to-month vs. year-to-year

This is where honesty matters most, because the two paths cost money in almost opposite ways.

Medicare Advantage minimizes your monthly cost. In 2026, 75% of Advantage enrollees with drug coverage pay no premium beyond Part B, and the average supplemental premium across all enrollees is just $15 a month. But you pay as you use care — copays for specialists, hospital stays, imaging, and so on — until you hit the plan’s out-of-pocket maximum. In 2026, the average Advantage out-of-pocket limit is $5,421 for in-network services and $9,825 once out-of-network care is included. A serious health year can get expensive fast, even on a “free” plan.

Original Medicare with Medigap flips that. You pay more every month — a Plan G premium in Florida commonly runs somewhere in the range of roughly $130 to $250+ depending on your age, ZIP code, and the carrier — but then your bills become highly predictable. With Plan G, after the once-a-year $283 Part B deductible, the policy covers essentially all your Medicare-approved costs. You trade a higher, known monthly cost for near-total protection from surprise bills.

There’s a bigger-picture cost worth naming, too. According to MedPAC figures cited by KFF, Medicare pays private Advantage plans about 14% more per person than it would cost to cover those same people in Original Medicare — roughly $76 billion in extra federal spending in 2026. That surplus is what funds the dental, vision, and gym benefits. It’s a real benefit to enrollees today, but it also drives ongoing policy debate that could reshape plans in future years. Figures like these change annually.

One more cost nuance that trips people up: the Part D drug benefit. On the Advantage path, drug coverage is usually baked into your plan at no extra premium. On the Original Medicare path, you buy a standalone Part D plan separately — often $0 to $60+ per month depending on the plan and your medications. When you tally the two paths, count Part D on both sides so you’re comparing apples to apples. And remember the drug protection is identical in one key respect: the $2,100 annual out-of-pocket cap on Part D applies whether your drug coverage comes through an Advantage plan or a standalone Part D policy. That cap, which rose from $2,000 in 2025, is one of the most meaningful protections Medicare has added in years — no more open-ended catastrophic drug spending.

Networks and provider access

Original Medicare’s biggest advantage is simple: freedom. Any doctor, hospital, or specialist nationwide that accepts Medicare will see you, and the vast majority do. No referrals, no network directories, no “in-network vs. out-of-network.” For a Jacksonville retiree who wants to see a specialist at Mayo Clinic, or who splits time between here and a hometown up north, that freedom is the whole ballgame.

Medicare Advantage plans, by contrast, use networks. HMOs — 57% of all Advantage plans in 2026 — generally require you to stay in-network except for emergencies, and often require referrals to see specialists. PPOs (42% of plans) let you go out-of-network but at a higher cost. Networks also change year to year, so the doctor you love today might not be in-network next January. Before enrolling, always confirm your specific doctors and hospitals are contracted with the plan for the coming year.

Prior authorization: the fine print that matters

This is the trade-off Advantage marketing rarely mentions, and it deserves a plain look. Prior authorization means the plan must approve certain services before you receive them. It’s how Advantage plans manage costs — and it’s widespread.

In 2026, 80% of Advantage enrollees are in plans that require prior authorization for at least one Medicare-covered service, and at least 70% are in plans requiring it for durable medical equipment, Part B drugs, skilled nursing facility stays, and inpatient hospital stays. Insurers processed nearly 53 million prior authorization determinations in 2024, denying roughly 8% of requests. Original Medicare, by contrast, uses prior authorization only in narrow, limited circumstances.

For a healthy person, prior authorization may never come up. For someone facing a hospital stay, rehab in a skilled nursing facility, or expensive specialty drugs, it can mean delays, appeals, and paperwork at exactly the wrong moment. This isn’t a reason to reject Advantage — millions get excellent care — but it’s a genuine difference you should weigh honestly.

Extra benefits: real, but read them closely

Medicare Advantage plans deliver perks Original Medicare doesn’t. In 2026, nearly all Advantage enrollees have access to dental (98%), vision (over 99%), and hearing (95%) benefits, and 91% have a fitness benefit. For someone who’d otherwise pay out of pocket for a cleaning or new glasses, that’s tangible value.

The honest caveat: these benefits are usually capped. A dental allowance might cover cleanings and a portion of a crown up to a fixed annual dollar limit, not unlimited care. They’re a nice supplement, not comprehensive coverage. If dental and vision are your deciding factor, price out a standalone dental/vision policy alongside a Medigap plan before assuming Advantage is the cheaper route to those perks.

Travel and the Florida snowbird question

If there’s one topic where Northeast Florida households should slow down, it’s travel. A huge share of our neighbors spend summers up north, take extended RV trips, or keep family ties in another state. Where and how you get care while away is a make-or-break factor.

Original Medicare travels with you. Care in Ohio, Michigan, or anywhere in the country works exactly the same as care in Jacksonville — no network to check. A Medigap policy travels too, and some plans even include limited foreign-travel emergency coverage. For true snowbirds, this is often the single strongest argument for Original Medicare + Medigap.

Medicare Advantage is built around a local service area. Away from home, you’re generally covered only for emergency and urgent care; routine care, specialists, and follow-ups may not be covered out-of-area. Some PPO and national plans offer broader travel benefits, but the details vary widely. If you’re on the road half the year, scrutinize this before enrolling. Our Medicare and travel guide breaks down the scenarios in detail.

The timing trap: Medigap medical underwriting

Here’s the detail that quietly locks in many people’s decision. When you first enroll in Part B at 65 (or lose employer coverage), you get a one-time, six-month Medigap Open Enrollment period. During that window, you have a guaranteed-issue right: any Medigap carrier must sell you any policy at the best available rate, regardless of your health history.

Miss that window, and in most states — Florida included — Medigap carriers can medically underwrite you. That means if you develop a health condition and later want to switch from Advantage back to Original Medicare + Medigap, a carrier can charge you more or deny coverage entirely. In practice, this makes the choice you make at 65 stickier than it looks. You can switch Advantage plans every year during Open Enrollment, but returning to Medigap later is not guaranteed.

This is precisely why “just try Advantage and switch later if you don’t like it” is riskier advice than it sounds. The door back to guaranteed Medigap coverage may not be open when you want it.

The two most popular Medigap options are worth knowing by name:

Plan F is no longer available to people newly eligible for Medicare, so Plan G has become the go-to for those who want the most complete coverage. Learn more on our Medicare Supplement page.

One thing to understand about Medigap pricing: because all Plan G policies cover the exact same standardized benefits by law, a Plan G from one carrier is identical in coverage to a Plan G from another — the only real differences are the monthly premium and the company’s track record on rate increases. That’s genuinely good news, because it means shopping Medigap is mostly a matter of comparing price and stability, not deciphering wildly different coverage. An independent agent who represents multiple carriers can line those up for you side by side. Premiums also vary by the pricing method a carrier uses (some rise with your age, some don’t), so two policies with similar premiums today can diverge significantly a decade from now.

Common mistakes we see on the First Coast

After walking many Jacksonville-area families through this decision, a few avoidable missteps come up again and again. First, choosing a plan on premium alone. A $0 Advantage plan is not “free” — it simply moves the cost from your monthly bill to the moment you need care. Look at the total picture, including the out-of-pocket maximum you’d face in a bad year.

Second, forgetting to check drug coverage. People pick a plan they like, then discover their specific medication isn’t on the formulary or sits on an expensive tier. Always run your actual prescriptions through the plan’s drug list before enrolling — on either path.

Third, assuming the choice is permanent — or assuming it’s freely reversible. Neither is quite true. You can change Advantage plans each year during Open Enrollment (October 15 to December 7), and there’s also a Medicare Advantage Open Enrollment period each January 1 to March 31 for people already in an Advantage plan. But as covered above, moving back to Original Medicare with a guaranteed Medigap policy may require passing medical underwriting in Florida. Know which doors stay open and which may close.

A simple framework for deciding

There’s no universally “right” answer — only the right answer for your health, budget, and lifestyle. Ask yourself:

• Do you travel or split the year between states? Heavy travel leans strongly toward Original Medicare + Medigap.
• How’s your health, and your family history? If you anticipate significant care, Medigap’s predictability and freedom often pays off. If you’re healthy and cost-focused, Advantage’s low premiums shine.
• Which risk worries you more? A higher fixed monthly premium (Medigap) or unpredictable pay-as-you-go bills in a bad year (Advantage)?
• Do you have specific doctors you won’t give up? Confirm they’re in-network before choosing Advantage, or keep your freedom with Original Medicare.
• How much do the dental/vision/gym extras matter? Real value — but price the standalone alternatives before letting them decide.

Drug coverage matters on both paths. Whichever route you choose, the $2,100 Part D out-of-pocket cap now protects you in 2026, and comparing formularies for your specific medications is essential — see our Part D guide.

Let’s figure out your best fit — no pressure

There’s a lot here, and the “best” plan is genuinely different for the healthy Jacksonville retiree who never leaves the First Coast than it is for the snowbird who summers in Michigan or the person managing a chronic condition. The good news: you don’t have to sort it alone.

Kate Spilsbury (RSSA®, CMIP®) at Mere Benefits is an independent agent based in Jacksonville, licensed in multiple states and serving Northeast Florida and Camden County, Georgia. An honest, unhurried conversation — one that starts with your doctors, your medications, and your travel plans, not a sales pitch — is the fastest way to clarity. Schedule a free, no-pressure review with Kate and we’ll compare your real options side by side.

This article is educational and not medical, tax, or legal advice. All figures are current as of 2026 and change annually. Mere Benefits is not connected with or endorsed by the U.S. government or the federal Medicare program. We don’t offer every plan available in your area.