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Medicare Supplement (Medigap) vs Medicare Advantage

Choosing between a Medicare Supplement (Medigap) plan and a Medicare Advantage plan is the most important decision you will make after enrolling in Medicare. This guide compares Medigap vs. Medicare Advantage side by side so you can decide which option fits your budget, health needs, and lifestyle.

Updated February 17, 20266 min read
David Haass

Written By

David Haass

CTO & Co-Founder

Ashlee Zareczny

Reviewed By

Ashlee Zareczny

Reviewer

Quick Answer

Original Medicare: Some PlansMedicare Advantage: Some PlansMedigap: Some Plans

Medicare Supplement (Medigap) plans pay secondary to Original Medicare and cover most or all of your out-of-pocket costs in exchange for a higher monthly premium. Medicare Advantage plans replace Original Medicare with a single plan from a private insurer, typically offering lower premiums but requiring copays, networks, and referrals. The right choice depends on your healthcare usage, budget, and preference for flexibility versus extra benefits.

Coverage Comparison by Plan Type

Plan TypeCoverageNotes
Original MedicareVariesCoverage depends on specific services
Medicare AdvantageVariesAdditional benefits may be available
MedigapSupplementsHelps cover out-of-pocket costs

Understanding Your Coverage Options

Overview

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If you are new to Medicare or considering a change during the Annual Enrollment Period, understanding the difference between Medicare Supplement vs. Medicare Advantage is your first priority. These are two fundamentally different approaches to Medicare coverage, and the one you choose affects your costs, provider access, and flexibility for years to come.

What is the Difference between Medicare Supplement vs. Medicare Advantage?

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While Medicare Supplement plans pay secondary to Original Medicare, Medicare Advantage plans become your primary source of coverage when you enroll. Medicare pays a set amount to the private carrier for the Medicare Advantage plan in which you enroll, and that carrier takes on your coverage needs for the calendar year.

Those new to Medicare may notice a considerable amount of Medicare Advantage plan promotion through advertisements and little to no promotion of Medicare Supplement plans. This does not mean one is better than the other. It simply reflects how each plan type is marketed.

Medicare Supplement vs. Medicare Advantage Pros and Cons

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There are several differences between Medigap vs. Medicare Advantage plans. A Medicare Advantage plan (Medicare Part C) is structured as an all-in-one option with low monthly premiums but requires you to use in-network providers and pay copays at each visit.

Medicare Supplement plans offer additional coverage to Original Medicare with low to no out-of-pocket costs. The most popular Medigap plan, Plan G, covers everything except the annual Part B deductible, giving you predictable costs throughout the year.

Which is Better Medicare Advantage vs. Medicare Supplement (Medigap)?

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Medicare does not offer a one-size-fits-all plan. So, the best policy for you is the policy that best meets your healthcare needs.

Medicare Supplement plans are the best option if you want complete reassurance and predictability with your healthcare but are comfortable paying higher premiums in exchange for lower out-of-pocket costs.

In contrast, Medicare Advantage plans are the best option if you hope to save on monthly premiums and receive additional benefits while accepting responsibility for additional out-of-pocket costs at the doctor’s office.

How do I Choose between Medicare Advantage and Medicare Supplement Plans?

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Do you want predictable costs, the freedom to choose any doctor, avoid referrals, and peace of mind while traveling? If you answered yes, you are looking for a Medicare Supplement plan.

Are you comfortable with unpredictable copayments, strict doctor networks, and referrals in exchange for a lower monthly premium and additional benefits? If your answer is yes, Medicare Advantage could work for you.

The best part about working with agents is that no matter which option you choose, we make sure it is the best for you. Perhaps you are already thinking about making the switch from a Medicare Advantage to a Medicare Supplement plan, or the other way around. Either way, you can compare plans in your area to see real pricing.

Frequently Asked Questions

DH

David Haass

CTO & Co-Founder

David Haass is the Chief Technology Officer and Co-Founder of Elite Insurance Partners and MedicareFAQ.com.

AZ

Ashlee Zareczny

Reviewer

Ashlee Zareczny is the Director of Operations for MedicareFAQ. As a licensed Medicare agent in all 50 states, she is dedicated to educating those eligible for Medicare.

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