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How to Read a Medicare Supplement Comparison Chart

Medigap charts pack a lot into a small grid. What each column means, and how to spot the differences that actually change what you pay.

Published on May 13, 2025

Agent showing a Medicare Supplement comparison chart to a couple
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What the columns mean

Every Medigap chart lists the plan letters across the top and the benefits down the side: Part A coinsurance and hospital costs, Part B coinsurance, blood, hospice care, skilled nursing coinsurance, the Part A deductible, the Part B deductible, Part B excess charges, and foreign travel emergency cover. A tick means the plan pays that item in full; a percentage means it pays that share.

Because the benefits are standardised by law, Plan G from one insurer covers exactly what Plan G from another covers. The chart tells you what is covered, never who to buy it from.

What to compare instead

  • Premium for the same plan letter, between carriers in your ZIP code
  • Rating method — attained-age, issue-age or community-rated changes how the premium moves as you get older
  • Rate-increase history for that carrier in your state
  • Household or non-smoker discounts

See how the standardised plans compare →

Questions about your own coverage?

A licensed Everstone advisor will talk it through with you — at no cost, with no obligation.