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Medicare Supplemental Plans vs. Medicare Advantage Plans: Understanding the Key Differences

Apr 08, 2025

Unquoting Insurance Company

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Elyse Y. RobinsonInsurance Broker
Phone1-888-928-9324
Emailmail@unquoting.com
AddressCleveland, Ohio
Licensed in all 50 states.Nosotros hablamos español.

As individuals approach retirement age, one of the most important decisions they face is how to manage healthcare costs not fully covered by Original Medicare (Part A and Part B). Two of the most common options are Medicare Supplement (Medigap) plans and Medicare Advantage (Part C) plans. While both offer ways to reduce out-of-pocket expenses, they operate very differently. Understanding their distinctions can help you choose the right coverage for your needs and lifestyle.

What Are Medicare Supplement (Medigap) Plans?

Medigap plans are sold by private insurance companies and are designed to help cover costs not paid by Original Medicare, such as:

These plans work alongside Original Medicare—meaning you must remain enrolled in both Part A and Part B. Medigap policies are standardized (Plans A, B, C, D, F, G, K, L, M, and N), and offer consistent benefits regardless of the insurer, though premiums may vary.

Key Features:

What Are Medicare Advantage (Part C) Plans?

Medicare Advantage plans are an alternative to Original Medicare and are offered by private insurers approved by Medicare. These plans bundle coverage, often including:

These plans typically operate within network-based systems such as HMOs or PPOs, and may require referrals for specialist visits.

Key Features:

Comparing the Two Options

FeatureMedicare Supplement (Medigap)Medicare Advantage (Part C)
Provider AccessAny provider accepting MedicareNetwork-based (HMO/PPO)
Drug CoverageNot included (add Part D)Usually included
Out-of-Pocket CostsLower, more predictableCan be higher, varies by plan
PremiumsHigherOften lower or $0
Travel FlexibilityNationwideLimited to service area
Referrals NeededNoOften yes for HMOs

Which One Is Right for You?

Final Thoughts

Both Medicare Supplement and Medicare Advantage plans offer valuable benefits depending on your healthcare needs, financial situation, and lifestyle preferences. It’s important to review the details of each option annually during the Medicare Open Enrollment Period (October 15 – December 7), as plan offerings and your healthcare needs may change.

Consulting with a licensed Insurance Broker or Medicare advisor can help ensure that you make an informed decision that supports both your health and your budget.


- Elyse Y. Robinson

Founded in 2025, Unquoting Insurance Company by an experienced insurance professional licensed, our insurance agency specializes in health, life, property, and casualty insurance in all 50 states. Dedicated to personalized solutions, we pride ourselves on excellent customer service. Need help finding the right insurance policy or want a free quote? Contact us today to explore your options and see how much you could save!