Medicare Advantage vs. Original Medicare: How to Choose During Open Enrollment

There’s a lot to consider when comparing Medicare Advantage vs. Medicare, especially once Medigap policies and prescription drug plans enter the picture. Your doctors, prescriptions, out-of-pocket costs, and even how much you travel can all influence which option makes the most sense for you.

At the most basic level, Original Medicare lets you see any provider in the country who accepts Medicare, but there’s no annual cap on what you might pay out of pocket. Medicare Advantage, also called Part C, does cap your yearly out-of-pocket costs and often includes drug, dental, and vision coverage, but generally limits you to a smaller network of providers.

Medicare's Open Enrollment Period runs October 15 through December 7 each year, and it's the primary window for switching between these two paths for the coming year's coverage. Below, you'll find breakdowns of the differences, the costs, and factors to help you decide.

At a Glance: Medicare Advantage vs. Original Medicare

Here's how Original Medicare vs. Medicare Advantage compare on the factors that matter most. We'll break down each row below.

What Original Medicare Covers

Original Medicare, sometimes called traditional Medicare, is the version run directly by the federal government: Part A covers hospital care and Part B covers doctor visits and outpatient services. Its defining strength is access. Any doctor or hospital in the U.S. that accepts Medicare can treat you, without network lists or referrals. For people who travel often, spend part of the year in another state, or rely on a specialist outside their local area, this flexibility is key.

Original Medicare sets no annual limit on your out-of-pocket costs. After you meet your deductible, you typically owe 20% of the Medicare-approved amount for most services. Many people close the gap by adding a Medigap policy (more details on Medigap below). Prescription drug coverage isn't included either; you'd enroll in a separate Part D plan for that.

If you’re approaching Medicare enrollment for the first time and want more foundational information, our Foundational Medicare Guide offers more details.

What Medicare Advantage Covers and the Trade-Offs

Medicare Advantage is the private alternative. Medicare-approved insurance companies run these plans, which cover everything Parts A and B cover and usually include prescription drug coverage. Most plans also add benefits Original Medicare leaves out, such as dental, vision, and hearing coverage, and three quarters of enrollees in individual plans with drug coverage pay no premium beyond the standard Part B amount.

Every Medicare Advantage plan sets a yearly out-of-pocket maximum on what you pay for in-network care, a protection Original Medicare doesn’t offer. The trade-off is limited access. Most plans use a provider network, so care outside it can cost significantly more or go uncovered entirely, and many services require prior authorization, meaning the plan has to approve them before you receive care, which can add delays. Plans also vary widely from one county and insurer to the next, so it's worth checking a plan's  Centers for Medicare & Medicaid Services (CMS) star rating before enrolling. Our guide to getting the most from your Medicare Advantage coverage covers how to work within those requirements once you're in a plan.

Cost Differences: Premiums, Deductibles, and Out-of-Pocket Caps

These are the confirmed 2026 figures, the most recent full set published as of September 2026.

• Part B premium: $202.90 per month for most people, with income-based surcharges at higher earnings.
• Part B deductible: $283 for the year.
• Part A deductible: $1,736 per benefit period for hospital stays; most people pay no monthly Part A premium.
• Medicare Advantage out-of-pocket cap: Federal rules set the 2026 in-network ceiling at $9,250, and most plans set lower limits; the average enrollee's cap is $5,421.
• Part D drug cap: $2,100 for 2026, whether your coverage comes through a standalone Part D plan or a Medicare Advantage plan. The 2027 cap is already set at $2,400.

The fall enrollment window selects coverage for the upcoming calendar year and CMS typically confirms the coming year's premiums and deductibles in November, partway through Open Enrollment. Because Medicare Advantage costs vary by plan and ZIP code, the only exact answer for your situation is on the specific plan itself, which you can look up through Medicare's Plan Finder.

What Is Medigap and Where Does it Fit?

About 43% of people in traditional Medicare carry a Medigap policy. Medigap, or Medicare Supplement Insurance, is private coverage that works only alongside Original Medicare; it can't be combined with a Medicare Advantage plan. It adds a monthly premium on top of Part B costs, but picks up most of the cost-sharing, including that uncapped 20% coinsurance.

Plan G is the most popular choice, covering 39% of policyholders. It covers nearly everything except the Part B deductible. Plan F covers that deductible too, but it is closed to anyone who became eligible for Medicare in 2020 or later. Our Medicare Plan F vs. Plan G Guide compares the two.

The six-month window to buy Medigap starts the month your Part B coverage begins, at age 65 or later (with some exceptions). During those six months, insurers have to sell you any Medigap policy at the standard price, no questions asked. After that, insurers in most states can ask about your health before selling you a policy, and they can charge more or say no based on the answers. Only four states require year-round or annual guaranteed access.

Medigap also doesn't include drug coverage, so you'd still pair it with a separate Part D plan.

How to Decide: 5 Questions to Ask Yourself

The best Medicare plan is the one that fits your circumstances. When you're weighing Medicare Advantage vs. traditional Medicare, these five questions do most of the sorting.

1. Are your doctors in a Medicare Advantage network where you live? If keeping a particular physician or specialist matters to you, find out whether they participate in the plans available in your area.
2. Do you travel often or split time between states? Original Medicare covers you with any participating provider nationwide. Most Medicare Advantage networks are local.
3. Which matters more to you: capping a worst-case year or keeping monthly costs low? Medicare Advantage limits what a serious health event can cost. Original Medicare leaves that open-ended unless you add a Medigap policy, which raises your monthly premium in exchange for the protection.
4. Do you manage an ongoing condition that involves several providers? Some Medicare Advantage plans, including Special Needs Plans, are built around coordinating care for specific chronic conditions.
5. Would you actually use the extra benefits? Dental, vision, and hearing coverage.

Key Dates for the 2026 Open Enrollment Period

• October 15 to December 7, 2026 (Annual Enrollment Period). Anyone with Medicare can switch between Original Medicare and Medicare Advantage, move between Medicare Advantage plans, or make changes to Part D drug coverage. New coverage takes effect January 1, 2027.
• January 1 to March 31, 2027 (Medicare Advantage Open Enrollment Period). This window applies only to people already enrolled in a Medicare Advantage plan. It allows one switch, either to a different Medicare Advantage plan or back to Original Medicare with the option to add a Part D plan.

For related decisions, from Medigap comparisons to drug coverage, our Medicare Guides hub collects everything in one place.

How a Solace Advocate Can Help

The right answer in this comparison is the one that matches your providers, your health, and your budget. If you already have Medicare, whether Original Medicare or a Medicare Advantage plan, a patient advocate can walk through the decision with you.

They’ll look at which of your doctors sit inside a plan's network, how your prescriptions would be covered under each option, and where the fine print differs. Advocates also help patients navigate the messier parts of coverage, like denied claims and confusing bills.

In Medicare Advantage, more than 80% of appealed prior authorization denials were overturned in 2024, yet fewer than 12% of denials were appealed at all. An advocate can help you understand a denial and keep the appeal process moving.

If you don't have Medicare yet, start with the free public resources built for enrollment questions: your State Health Insurance Assistance Program (SHIP), Medicare.gov's Plan Finder, or 1-800-MEDICARE. Once you're enrolled, a Solace advocate can help you get the most from whichever path you choose.

FAQ

What is the biggest disadvantage of Medicare Advantage?

Network limits are the most significant trade-off. On average, Medicare Advantage enrollees have access to about half of the physicians available to Original Medicare beneficiaries in their area, since each plan negotiates its own provider network. Many plans also require prior authorization, meaning the plan must approve certain services before you receive them, which can delay care.

Can I drop my Medicare Advantage plan and go back to Original Medicare?

Yes. You can switch during the Annual Enrollment Period (October 15 to December 7) or, if you're already in a Medicare Advantage plan, during the Medicare Advantage Open Enrollment Period (January 1 to March 31).

Why do doctors not accept Medicare Advantage?

Most physicians do accept Medicare Advantage. When a practice opts out, the reasons usually involve administrative workload and payment: Medicare Advantage insurers made nearly 53 million prior authorization determinations in 2024, and reimbursement from private plans can run lower or slower than Original Medicare's standardized rates.

Why would anyone want a Medicare Advantage plan?

The annual out-of-pocket cap is the biggest benefit. It puts a ceiling on your costs in a serious health year, which Original Medicare can't do without a separate Medigap policy. Bundled dental, vision, and hearing benefits are typically included, and most enrollees pay no premium beyond the standard Part B amount.

What are the pros and cons of Medicare Advantage plans vs. Original Medicare?

Medicare Advantage offers an annual cap on out-of-pocket costs, extra benefits like dental and vision, and often no added premium; its main drawbacks are smaller provider networks and frequent prior authorization requirements. Original Medicare offers open access to any provider nationwide who accepts Medicare; its main drawback is the absence of a yearly spending cap, which most people address by adding a Medigap policy and a separate Part D drug plan.