Written By

Greg Wohl

Licensed Medicare Specialist

When you become eligible for Medicare, you face a fundamental choice: stay with Original Medicare (Parts A and B) and add supplemental coverage, or enroll in a Medicare Advantage plan (Part C) that replaces Original Medicare with a private insurance plan.

In Florida, approximately 60% of Medicare beneficiaries are now enrolled in Medicare Advantage plans. But that does not mean Medicare Advantage is the right choice for everyone. The best option depends on your health status, your preferred doctors, your prescription drug needs, and how much financial risk you are willing to accept.

This guide compares both options across every dimension that matters so you can make an informed decision.

Key Takeaways

Original Medicare gives you unrestricted provider access: With Original Medicare, you can see any doctor or hospital in the United States that accepts Medicare, with no network restrictions and no referrals required. This is a significant advantage for people who travel, have complex medical needs, or see multiple specialists.
Original Medicare has no out-of-pocket maximum without Medigap: Original Medicare covers 80% of most costs after your deductible, but there is no annual cap on your 20% share. A serious illness can result in tens of thousands of dollars in cost-sharing. A Medigap supplement plan eliminates most of this risk but adds a monthly premium.
Medicare Advantage typically has lower premiums but more restrictions: Many Medicare Advantage plans have $0 monthly premiums (you still pay your Part B premium). But they restrict you to a provider network, may require referrals, and have cost-sharing for every service you use. The out-of-pocket maximum in 2026 can be up to $9,350.
Medicare Advantage includes extra benefits Original Medicare does not cover: Dental, vision, hearing, fitness memberships, OTC allowances, and transportation are commonly included in Medicare Advantage plans. Original Medicare covers none of these. However, the value of these benefits varies widely by plan.
Switching from Medicare Advantage back to Original Medicare has risks: If you enroll in Medicare Advantage and later want to switch back to Original Medicare with a Medigap supplement, you may not be able to get Medigap coverage if you have pre-existing conditions. Florida Medigap insurers can use medical underwriting outside of your initial Open Enrollment Period.
The right choice depends on your specific situation: There is no universally correct answer. People with complex medical needs and preferred specialists often do better with Original Medicare plus Medigap. People who are generally healthy and want low premiums and extra benefits often do well with Medicare Advantage.

Side-by-Side Comparison: Original Medicare vs. Medicare Advantage

The table below summarizes the key differences between the two approaches.

Factor	Original Medicare + Medigap	Medicare Advantage
Monthly premium	Part B ($185) + Medigap ($120-$220)	Part B ($185) + plan premium ($0-$100+)
Provider access	Any Medicare-accepting provider nationwide	In-network providers (HMO) or any with higher cost (PPO)
Referrals needed	No	Yes (HMO) / No (PPO)
Out-of-pocket maximum	Effectively $0 with Plan G (Medigap covers most costs)	Up to $9,350 in-network (2026)
Drug coverage	Separate Part D plan required	Usually included (MAPD)
Dental/vision/hearing	Not covered	Often included (varies by plan)
Prior authorization	Rarely required	Commonly required for procedures
Travel coverage	Nationwide + foreign emergency (Medigap)	In-network area only (emergency nationwide)

The Case for Original Medicare with Medigap

Original Medicare plus a Medigap supplement is the more predictable and flexible option. Here is when it tends to be the better choice.

You have complex medical needs or see multiple specialists. Original Medicare allows you to see any Medicare-accepting specialist in the country without a referral. If you have cancer, heart disease, or another serious condition and want access to major academic medical centers or out-of-state specialists, Original Medicare is the better choice.

You travel frequently or split time between states. Medicare Advantage plans have service areas. If you spend part of the year in another state, your HMO plan may not cover non-emergency care there. Original Medicare covers you anywhere in the country.

You want predictable costs. With Medigap Plan G, your only predictable out-of-pocket cost is the Part B deductible ($257 in 2026). Everything else is covered. There are no copays, no coinsurance surprises, and no network restrictions.

The trade-off: You pay higher monthly premiums (Part B plus Medigap plus a separate Part D plan). You also do not get the extra benefits (dental, vision, OTC) that Medicare Advantage plans offer.

For a detailed look at Medigap options in Florida, see our guide on pros and cons of Florida Medicare Supplement plans.

The Case for Medicare Advantage

Medicare Advantage is the right choice for many beneficiaries, particularly those who are generally healthy and want lower out-of-pocket costs in a typical year.

You want a lower monthly premium. Many Medicare Advantage plans in Florida have $0 monthly premiums (you still pay the Part B premium). For beneficiaries on a fixed income, this can be a significant financial advantage.

You want extra benefits. If you need dental work, hearing aids, or vision care, Medicare Advantage plans often include these benefits. The value varies by plan, but for some beneficiaries the extra benefits alone justify the choice.

You are generally healthy. If you rarely use healthcare services, the network restrictions and copays of a Medicare Advantage plan are unlikely to cause problems. You benefit from the lower premium and extra benefits without incurring significant cost-sharing.

The trade-off: You accept network restrictions, potential prior authorization requirements, and an out-of-pocket maximum of up to $9,350. If you develop a serious illness, your costs could be significantly higher than with Medigap.

For details on the best Medicare Advantage plans available in Florida, see our guide on best Medicare Advantage plans in Florida.

The Medigap Underwriting Risk: Why Timing Matters

One of the most important and least understood aspects of this decision is the Medigap underwriting risk.

When you first become eligible for Medicare, you have a 6-month Medigap Open Enrollment Period during which Florida Medigap insurers cannot deny you coverage or charge you more based on your health. This is the best and often the only time to get Medigap coverage at standard rates.

If you choose Medicare Advantage first and later want to switch to Original Medicare with Medigap, you may not be able to get Medigap coverage. Florida Medigap insurers can use medical underwriting outside of the OEP and guaranteed issue situations. If you have developed health conditions in the intervening years, you could be denied or charged significantly higher premiums.

The first-year trial right is an exception: if you are new to Medicare and enroll in Medicare Advantage for the first time, you have a one-time right to switch back to Original Medicare and get Medigap coverage without underwriting within the first 12 months.

For more on switching from Medicare Advantage back to Original Medicare, see our guide on dropping Medicare Advantage and returning to Original Medicare.

How to Decide: A Framework

Use this framework to guide your decision.

Choose Original Medicare + Medigap if:

You have ongoing complex medical needs or see multiple specialists
You travel frequently or live in multiple states
Your preferred doctors are not in any Medicare Advantage network in your area
You want the most predictable out-of-pocket costs
You are willing to pay higher monthly premiums for broader access

Choose Medicare Advantage if:

You are generally healthy and rarely use healthcare services
Your preferred doctors are in-network with a plan you are considering
You want lower monthly premiums
You would benefit from extra benefits like dental, vision, or OTC allowances
You are comfortable with a network and potential prior authorization requirements

For personalized guidance based on your specific health situation and the plans available in your county, schedule a free consultation with our licensed specialists.

The Bottom Line on Original Medicare vs. Medicare Advantage

Both options have real advantages. The right choice depends on your health needs, your preferred providers, and your financial priorities.

Original Medicare + Medigap offers unrestricted provider access, predictable costs, and nationwide coverage, at the cost of higher monthly premiums
Medicare Advantage offers lower premiums, extra benefits, and bundled drug coverage, with the trade-off of network restrictions and potential prior authorization
The Medigap underwriting risk is the most important timing factor: your initial enrollment period is the best and often only time to get Medigap at standard rates
There is no universally correct answer: match the option to your specific situation

Our licensed specialists can compare both options side by side for your specific situation and the plans available in your Florida county. Schedule a free consultation to get started.