The Top 10 Medicare Supplement (Medigap) Companies

Medicare Supplement Insurance plans (also called Medigap) are sold by dozens of private insurance companies all over the U.S. When shopping for coverage, it’s important to find the right plan for your unique needs and also to find the right insurance company. 

Different companies may sell Medigap plans that have different prices and terms, and each insurance company has an individual reputation you may want to consider.

Learn about Medigap plans in your area

Visit MedicareSupplement.com

Below is a guide to 10 Medicare Supplement Insurance companies to help you choose the best one for your needs. 

Comparing Medicare Supplement Insurance Companies

The list below includes some of the companies that sell Medicare Supplement Insurance plans in select states across the U.S.

Please note that our guide is meant to be informational and to help you as you start finding the right plan and plan carrier for your needs. Some of the companies listed below may not offer Medigap plans in your area, and you may find a Medicare Supplement carrier in your area that fits your need and isn’t on this list.

This list identifies several of the top 10 insurance companies in no particular order. 

  • UnitedHealthcare
  • Humana
  • Cigna
  • Blue Cross Blue Shield
  • Aetna
  • ManhattanLife
  • Mutual of Omaha
  • AARP Medicare Supplement Plans from UnitedHealthcare
  • Medico Insurance Company
  • WellCare

It’s important to keep in mind that although each company’s plan selection and pricing may differ, the coverage included in each type of Medigap plan remains the same, no matter where you purchase it.

In other words, Medigap Plan A sold by one company will include the same essential benefits as Medigap Plan A sold by any other insurance company. Their costs and the availability of the types of plans, however, may vary.

Medigap plans in Massachusetts, Minnesota and Wisconsin are standardized differently than they are in every other state. Learn more about Medigap plans in your state.

You can use the chart below to compare each type of 2020 standardized Medicare Supplement plan.

Medicare Supplement Insurance Plans 2020
Medicare Supplement Benefits A B C D F G K L M N
Part A co-insurance and hospital costs
Part B co-insurance or co-payment 50% 75%
First 3 pints of blood 50% 75%
Part A hospice care co-insurance or co-payment 50% 75%
Co-insurance for skilled nursing facility     50% 75%
Medicare Part A deductible   50% 75% 50%
Medicare Part B deductible                
Medicare Part B excess charges                
Foreign travel emergency     80% 80% 80% 80%     80% 80%
1. Plans C and F are not available to new beneficiaries who become eligible for Medicare on or after January 1, 2020.
2. Plans F and G also offer a high deductible plan which has an annual deductible of $2,340 in 2020. Once the annual deductible is met, the plan pays 100% of covered services for the rest of the year. The high deductible Plan F is not available to new beneficiaries who become eligible for Medicare on or after January 1, 2020.
3. Plan K has an out-of-pocket yearly limit of $5,880 in 2020. Plan L has an out-of-pocket yearly limit of $2,940 in 2020.
4. Plan N pays 100% of the Part B coinsurance, except for a copayment of up to $20 for some office visits and up to $50 for emergency room visits that don’t result in an inpatient admission.
View an image version of this table.

UnitedHealthcare

UnitedHealthcare offers 9 of the 10 standardized Medigap plans from which to choose, though plan availability may vary where you live. UnitedHealthcare offers a number of Medigap plans in partnership with AARP.

Learn more about AARP Medicare Supplement plans from UnitedHealthcare by visiting MedicareSupplement.com.

Some of the UnitedHealthcare Medigap plans that may be available near you may include:

  • Plan A
  • Plan B
  • Plan D
  • Plan G
  • Plan K
  • Plan L
  • Plan M
  • Plan N
  • Plan F and Plan C (both of which are not available to new Medicare beneficiaries who became eligible for Medicare on or after January 1, 2020. If you were eligible for Medicare before this date, or if you already have Plan C or Plan F, you may still be able to apply for a new Plan F or Plan C if either is available near you.)

Starting in 2020, some Medicare Supplement plans insured by UnitedHealthcare may offer benefits such as health and wellness resources, a 24/7 Nurse line, hearing care and vision discounts. The availability of these benefits may vary by area.

UnitedHealthcare is part of the UnitedHealth Group, which ranked number 1 overall in the insurance and managed care sector on the 2019 “World’s Most Admired Companies” list from Fortune.1 

Humana

Humana was awarded Best in Customer Service 2020 among health insurance companies by Newsweek. 2

Humana offers the following Medigap plans (plan availability may vary by location):

  • Plan A
  • Plan B
  • Plan C
  • Plan F
  • Plan G
  • Plan K

As mentioned above, Plan F and Plan C are not available for sale to Medicare beneficiaries who become eligible for Medicare on or after Jan. 1, 2020.

Cigna

Cigna is ranked number 65 on the Fortune 500 list in 2020.3

Depending on your location, the Medicare Supplement Insurance plans you may be able to apply for from Cigna* may include:

  • Plan G
  • Plan N
  • Plan A
  • Plan F
  • High Deductible Plan F

*Insured by Cigna Health and Life Insurance Company, American Retirement Life Insurance Company or Loyal American Life Insurance Company.

Blue Cross Blue Shield

Blue Cross Blue Shield (BCBS) is among the leading health insurance carriers in the U.S., and BCBS companies were the very first to work in conjunction with Medicare.

There are now 36 different locally operated BCBS companies administering coverage in all 50 states.

Blue Cross Blue Shield offers several Medigap plans, including Plan F, Plan G and Plan N.

Plan availability may vary, depending on where you live.

Learn more about Blue Cross Blue Shield Medicare Supplement plans by visiting MedicareSupplement.com.

Aetna

Aetna offers a diverse portfolio of insurance products that includes Medigap plans. Over 842,000 people trust Aetna for their Medicare Supplement Insurance.4

Aetna offers several different types of Medigap plans. Plan availability may vary based on your location. Some of the Medicare Supplement plans that Aetna may offer in your area include:

  • Plan A
  • Plan B
  • Plan F
  • Plan G
  • Plan N

Learn more about Aetna Medicare Supplement plans at MedicareSupplement.com.

ManhattanLife

With roots dating back to 1850, ManhattanLife is one of the oldest continuously operating insurance companies in the world.

Medicare Supplement plan options available from ManhattanLife include Plan A, Plan C, Plan F, Plan G and Plan N. Plan availability may vary by location.

Learn more about ManhattanLife Medicare Supplement plans at MedicareSupplement.com.

Mutual of Omaha

Mutual of Omaha Medicare Supplement Insurance plans come with an Additional Benefit Rider that may include services such as discounts on fitness programs, hearing care and vision care. 

Mutual of Omaha offers several types of Medigap plans. Depending on where you live, you may be able to apply for Mutual of Omaha Medicare Supplement Insurance policies such as Plan F, Plan G and Plan N. 

Medico Insurance Company

Medico sells Medicare Supplement Insurance in 25 states and offers several popular Medigap plans, such as Plan A, Plan F, Plan G and Plan N.

Medico offers a number of plan discounts for things like automatic premium withdrawal, being a non-smoker or living with another person over the age of 18.

Learn more about Medico Insurance Company by visiting MedicareSupplement.com.

WellCare

In 2020, WellCare was named one of Fortune Magazine’s “Most Admired Companies,” and the company boasts a number of community-based programs designed to help members navigate their local social support network and connect to community resources.5

Learn more about WellCare and Medicare Supplement plans by visiting MedicareSupplement.com.

Smiling couple on a sail boat

Other Medicare Supplement Insurance Companies

The list above only includes 10 of the best Medicare Supplement Insurance companies. But these are not the only companies that may offer Medigap coverage where you live.

Some other notable Medicare Supplement Insurance companies you may be able to consider include:

The chart below highlights the largest sellers of Medicare Supplement Insurance in 2019, as reported by the National Association of Insurance Commissioners (NAIC). While some of these companies offer Medicare Supplement Insurance nationwide, others may only be available for purchase on a more regional basis.   

Top 20 Medicare Supplement Companies by Direct Premiums Earned (Individual and Group Policies)

Name of company

Direct premiums earned

Market share

Number of lives covered

UnitedHealthcare Insurance Company

3,300,829,731

14.4%

1,348,238

Health Care Service Corporation, A Mutual Legal Reserve Company

1,597,753,683

7%

635,527

United of Omaha Life Insurance Company

943,150,225

4.1%

334,781

Mutual of Omaha Insurance Company

762,138,169

3.3%

339,555

Omaha Insurance Company

653,798,506

2.9%

412,257

Colonial Penn Life Insurance Company

475,877,566

2.1%

221,914

Continental Life Insurance Company of Brentwood

457,008,531

2%

222,573

American Continental Insurance Company

455,068,518

2%

201,405

BCBS of Massachusetts

 446,361,796

2%

203,249

BCBS of Florida

444,543,565

1.9%

182,703

BCBS of Michigan Mutual Insurance Company

439,539,502

1.9%

143,544

United World Life Insurance Company

434,609,185

1.9%

 260,451

Humana Insurance Company

426,178,821

1.9%

201,493

Wellmark Incorporated

420,781,140

1.8%

174,420

American Retirement Life Insurance Company

400,914,963

1.7%

211,667

BCBS of North Carolina Incorporated

382,057,438

1.7%

161,424

Aetna Health & Life Insurance Company

354,356,816

1.5%

214,404

USAA Life Insurance Company

347,290,958

1.5%

148,983

Cigna Health & Life Insurance Company

304,378,490

1.3%

230,066

Anthem Health Plans of Virginia Incorporated

 301,487,323

1.3%

129,741

Source: NAIC 2018 Medicare Supplement Loss Ratios Report (Issued 2019)

Find the best Medicare Supplement company for your needs

Learn more about Medigap plans by visiting MedicareSupplement.com, and find the best 2020 Medicare Supplement Insurance company and plan for your individual needs. 

Learn about Medigap plans in your area

Visit MedicareSupplement.com