Best Medicare Supplement Plans for 2023

Written by: 
Matt Kiggins

The best Medicare Supplement plan in 2023 depends on your finances, how frequently you access healthcare and how much help you’d like to cover out-of-pocket fees.

Medicare Supplement insurance, also known as Medigap, covers expenses that Medicare enrollees incur after the federal government pays its share of health insurance benefits. The lettered plans are standardized from state to state. However, Wisconsin, Massachusetts, and Minnesota do not sell these standardized plans.

Traditionally, the most popular Medicare Supplement insurance plans were Plans C and F because of the broad coverage. But Plans C and F are no longer available for Medicare enrollees whose eligibility began on Jan. 1, 2020.

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1. Best comprehensive coverage: Medigap Plan G

Medicare Supplement insurance Plan G offers the most comprehensive coverage but is also the most expensive Medigap insurance policy for policyholders newer to Medicare.

Plan G offers almost identical health insurance benefits as Plan F. However, it does not pay for your Part B deductible. Federal guidelines now prohibit Medigap plans from covering the Part B deductible of $226 in 2023.

Here’s the overview of Plan G:

  • Medicare Part A coinsurance and hospital costs up to an additional 365 days after Medicare benefits are used (100 percent)
  • Medicare Part B coinsurance and copayment (100 percent)
  • Blood (first three pints) (100 percent)
  • Part A hospice care coinsurance or copayment (100 percent)
  • Skilled nursing facility care coinsurance (100 percent)
  • Part A deductible (100 percent)
  • Part B excess charges, what you owe over Medicare allowable amount (100 percent)
  • Foreign travel emergency (80 percent)

Because of its broad coverage, Plan G has one of the most expensive monthly premiums.

Here is a snapshot:

65-Year Old Female non-smoker

Plan G $126.48 -$219.67

2. Best value: Medigap Plan N

Medigap Plan N offers similar health insurance coverage to Plan G. Plan N does not include Part B excess charge coverage. This means the Medicare beneficiary would be responsible for covering fees healthcare providers charge above the Medicare allowable amount.

Also, Plan N pays 100 percent of the Part B coinsurance, except for a copayment of up to $20 for some office visits and up to a $50 copayment for emergency room visits that don’t result in inpatient admission.

65-Year Old Female non-smoker

Plan N $76.22 to $167.76

3. Best for cheapest premiums: High Deductible Plan G

High deductible Medigap plan G requires Medicare beneficiaries to pay hefty upfront costs before Medicare kicks in to pay for services. The perk is a lower monthly premium.

However, once enrollees meet the deductible of $2,700, they would not have to pay any more Medicare allowable expenses except for the monthly premium.

High deductible Plan G has the same benefits as a traditional Plan G. With a high-deductible Plan G, an enrollee will pay all deductibles, copays, and coinsurance until costs reach the amount of the high deductible.

Here are the average high deductible Plan G premiums for a nonsmoking, 65-year-old woman. 

  • $42.99 in the 28205 zip code in Charlotte, NC, with a range of $34.76 to $60.61 per month 
  • $83.59 in the 80231 zip code in Denver with a range of $49.03 to 69.13 per month

4. Best overall Medicare Supplement pre-2020: Medigap Plan F

For Medicare beneficiaries who became eligible for the program before Jan. 1, 2020, Medigap Plan F offers the broadest coverage. Plans F and C are the only plans that cover the Part B deductible, which is $226 in 2023.

The monthly Plan F premium average for a 65-year-old female nonsmoker:

  • $173.09 in the 28205 zip code in Charlotte, NC, with a range of $122.03 to $240.95 per month 
  • $218.06 in the 80231 zip code in Denver with a range of $181.14 -$259.85 per month

Frequently Asked Questions:

Who is the largest Medicare Supplement provider in 2023?

United Health Group has the most significant number of Medicare Supplemental insurance policyholders in the U.S, covering 43 million people in all 50 states and most U.S. territories.

AARP does not sell Medigap plans, but it licenses its name to UnitedHealthcare. You must be an AARP member to purchase these Medicare Supplemental insurance plans.

Here are some reasons AARP/UnitedHealthcare Medigap plans are popular health insurance plans

  • A+ rating from the Better Business Bureau
  • 24/7 nurse line
  • Discounts on hearing aids and screenings
  • Gym memberships
  • Wellness Coaching

UnitedHealthcare has an A- or “Excellent” financial strength rating from insurance credit rating agency AM Best and satisfactory quality ratings from the National Committee for Quality Assurance (NCQA).

Can I change Medigap plans at any time of the year?

Yes, but you will have to pay more if you don’t purchase a Medicare Supplement plan as soon as your Medicare eligibility begins.

The best time to purchase a Medicare Supplement insurance plan is during your six-month Medigap open enrollment period. This period starts the first month you have Medicare Part B (Medical Insurance), and you’re 65 or older.

You will get better prices and more choices among Medicare Supplement insurance plans because guaranteed issue laws apply. Insurance companies can’t consider your health history when pricing or issuing a Medigap policy during open enrollment.

If you would like to change your Medigap plan in the future, you can do so, but insurance companies can consider your health history when determining your plan options and costs.

Can I be denied Medigap coverage?

You can’t be denied Medigap coverage if you sign up during your Medigap open enrollment period. This period starts the first month you have Medicare Part B (medical insurance) and you’re 65 or older.

After that, guaranteed issues laws do not apply, and you could be denied a policy based on the state of your health.

Do Medigap plans cover foreign emergency travel?

Yes. Several Medigap plans cover foreign travel emergencies.

If you have Medigap Plans C, D, E, F, G, H, I, J, M, or N, your plan covers:

  • Foreign travel emergency care if it begins during the first 60 days of your trip and if Medicare doesn’t otherwise cover the care.
  • Eighty percent of billed charges for medically necessary emergency care outside the U.S. after you meet a $250 deductible for the year.

Medicare usually doesn’t cover healthcare while you’re traveling outside the U.S. However, Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands are considered part of the U.S.

Foreign travel emergency coverage with Medigap policies has a lifetime limit of $50,000.

Ready to learn more?

We help educate Medicare beneficiaries on their Medigap options and help them go through the process of reviewing and comparing plans. We work with most of the nation’s top-rated Medigap carriers, such as Aetna, Cigna, Mutual of Omaha, and Florida Blue Medicare plans. So give us today, or request a quote online to learn more about Aetna Medicare Supplement plan G and Mutual of Omaha Medicare Supplement plan G in your state. We educate you on the best Medicare Plans for your situation, then let you decide.


Matt Kiggins
Matt Kiggins
Senior Editor

For over 15 years, Matt Kiggins has been the senior editor at Senior Life Insurance Plans, giving detailed advice on Medicare, life insurance, and dental coverage to thousands of clients in more than forty states. His demonstrated expertise in assisting people with their health plan selection is remarkable — it’s evident that he stands out among competitors as the go-to source for knowledge and support.

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