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Best Medicare Supplement Companies 2027: Top 6 Insurers Compared

 

Reviewed by Russell Noga, Licensed Medicare Insurance Broker (all 50 states) — Last updated October 20, 2026

Key Takeaway

Every Medicare Supplement company sells the same standardized benefits for each plan letter. The best company is the one with the lowest price in your ZIP code, solid rate history and the discounts you qualify for.

Choosing a Medicare Supplement company, also called a Medigap insurer, matters more than most people expect. The coverage is identical by plan letter, but the price, discounts and future rate increases are not. Here are six of the top Medicare Supplement companies for 2027 and how to pick the right one for you.

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Top Medicare Supplement Companies for 2027

Top 6 Medicare Supplement companies for 2027: Mutual of Omaha, HealthSpring, Aetna, Medico, Allstate Health Solutions and UnitedHealthcare

These six companies are some of the most widely sold Medicare Supplement insurers in the country. Availability, plan letters and discounts vary by state.

Mutual of Omaha

✔One of the largest Medicare Supplement insurers
✔Plan G, Plan N and High-Deductible G in many states
✔Household discounts in many states

HealthSpring (formerly Cigna)

✔Now part of Health Care Service Corporation
✔Sold in 48 states and Washington, D.C.
✔Online application discount in some states

Aetna

✔Part of CVS Health
✔Plan G, Plan N and other popular plans
✔Household discounts in many states

Medico (now Wellabe)

✔Sold in about 28 states
✔Plans A, F, G and N
✔Strong household discount and small extras

Allstate Health Solutions

✔Backed by a well-known national brand
✔Plan G and Plan N in select states
✔Simple application process

UnitedHealthcare

✔One of the largest Medicare Supplement insurers
✔Available in every state
✔Wide range of plan letters

Availability, plan letters, discounts and extras vary by state and can change. A licensed insurance agent can confirm what each company offers in your ZIP code.

How to Compare Medicare Supplement Companies

Because the benefits are the same, compare companies on what actually changes from one to the next.

✔
Price today: the monthly premium for your plan letter in your ZIP code
✔
Rate increase history: how much the company has raised premiums in past years
✔
Pricing method: community-rated, issue-age or attained-age, which decides how age affects your price
✔
Discounts: household, online application or annual payment discounts
✔
Service and claims: how easy the company is to reach and how claims are paid
✔
Extras: some companies add small perks like hearing or fitness discounts

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Same Plan, Different Price

Medicare Supplement Plan G benefits are the same with every company, but monthly premiums differ from one insurance company to another

A Plan G policy covers the same costs whether it comes from Mutual of Omaha, Aetna or any other company. The only differences are the price you pay and how that price changes over time. See how two of the biggest compare in our Aetna vs Mutual of Omaha Medicare Supplement guide.

Good to know: The same plan letter can cost $100 or more a month less with one company than another in the same ZIP code. See what Medicare Supplement plans cost for average premiums by age.

Look past the starting price: A company with the lowest premium at 65 is not always the cheapest at 75. Ask about rate increase history and pricing method before you buy.

Can You Switch Medicare Supplement Companies?

Yes. You can apply with a new company at any time, for the same plan letter or a different one. What changes is whether the company can ask about your health. See how Medicare Supplement open enrollment and guaranteed issue rights work.

During Open Enrollment

✔Your first 6 months with Part B at 65+
✔No health questions
✔Any company, any plan

Guaranteed Issue Rights

✔Losing other coverage or a plan leaving your area
✔No health questions for certain plans
✔Limited time window

Any Other Time

✔You may need to answer health questions
✔The company can decline or charge more
✔Some states have special yearly switching rules

Before you switch: Never cancel your current plan until the new company approves your application in writing.

How to Choose the Best Medicare Supplement Company

1
Pick your plan letter first. Compare all 10 Medicare Supplement plans and choose the coverage that fits your health and budget.
2
Get quotes from several companies. Prices for the same plan vary widely in the same ZIP code.
3
Check rate increase history. A slightly higher price today can cost less over 10 years.
4
Ask about discounts. Household and online discounts can lower your premium.
5
Apply during your open enrollment window. That guarantees approval without health questions.

The Bottom Line

The best Medicare Supplement company is the one that gives you the lowest long-term price for the plan you want. A licensed insurance agent at MedigapWise can compare Mutual of Omaha, HealthSpring, Aetna, Medico and more side by side at no cost.

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Best Medicare Supplement Companies — Frequently Asked Questions

➤ What are the best Medicare Supplement companies for 2027?

Mutual of Omaha, HealthSpring (formerly Cigna), Aetna, Medico (now Wellabe), Allstate Health Solutions and UnitedHealthcare are among the most widely used Medicare Supplement companies. The best one for you depends on the price in your ZIP code, discounts and the company’s rate increase history.

➤ Do all Medicare Supplement companies offer the same benefits?

Yes. Every plan with the same letter has the same standardized benefits, no matter which company sells it. Plan G from one company covers exactly what Plan G covers from any other company.

➤ Why do Medicare Supplement companies charge different prices for the same plan?

Each company sets its own premiums based on its pricing method, the claims experience of its members and its costs in your state. That is why the same plan letter can cost $100 or more a month less with one company than another.

➤ Which Medicare Supplement company is cheapest?

There is no single cheapest company everywhere. Prices change by ZIP code, age, gender and tobacco use, so the lowest-priced company in one area may be one of the highest in another. Comparing quotes is the only way to know.

➤ What is a household discount on a Medicare Supplement plan?

Many companies take money off your premium when another adult in your household also has a policy. Depending on the company and state, it can apply to a spouse or another adult you live with.

➤ Is it better to choose a large Medicare Supplement company?

Size alone does not decide the best company. Look at the premium today, how much rates have gone up in past years, available discounts and how the company handles claims and customer service.

➤ Can I switch Medicare Supplement companies?

Yes. You can apply for the same or a different plan letter with another company at any time. Outside your open enrollment window or a guaranteed issue right, you may have to answer health questions to be approved.

➤ Do Medicare Supplement companies use networks?

No. Medicare Supplement plans let you see any doctor or hospital in the U.S. that accepts Medicare, no matter which company you choose.

➤ Is HealthSpring the same as Cigna for Medicare Supplement?

Yes. Cigna sold its Medicare business to Health Care Service Corporation, and its Medicare Supplement plans are now branded HealthSpring.

➤ Does it cost anything to compare Medicare Supplement companies with MedigapWise?

No. Comparing companies with our licensed insurance agents is free, your premium is the same as buying directly from the insurance company, and you are never required to enroll.

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