Make money work for you!

  • Home
  • Personal Finance
  • Budgeting
  • Shopping
  • Taxes

An Introduction to Medicare: Parts A, B, C, and D Explained

August 24, 2025 · Personal Finance

Photo-realistic, senior-friendly scene that visually introduces the section titled 'What About Medigap? (Medicare Supplement Insurance)'.

What About Medigap? (Medicare Supplement Insurance)

If you decide to stick with Original Medicare (Parts A and B), you are still left with potential out-of-pocket costs like deductibles and the 20% coinsurance. To help cover these gaps, you can buy a Medicare Supplement Insurance policy, also known as Medigap.

Medigap policies are sold by private insurance companies. Their job is simple: to pay for some or all of the costs that Original Medicare does not cover. For example, a Medigap policy might pay your Part B coinsurance, so instead of you being responsible for 20% of a doctor’s bill, your Medigap policy pays it for you.

An illustration showing a golden puzzle piece labeled 'Medigap' filling a gap in a wall representing Medicare coverage.
A glowing Medigap puzzle piece descends to perfectly fill the gap in an Original Medicare brick wall.

How Medigap Works

It is important to understand that Medigap works *with* Original Medicare. It does not replace it. You will present both your red, white, and blue Medicare card and your Medigap policy card when you receive medical care. Medicare will pay its share first, and then your Medigap policy will pay its share.

Medigap plans are standardized. In most states, they are identified by letters (Plan A, B, C, D, F, G, K, L, M, N). Each plan with the same letter must offer the same basic benefits, regardless of which insurance company sells it. This makes it easier to compare plans. The only difference between a Plan G from one company and a Plan G from another will be the price (the premium) and the company’s customer service.

It is crucial to know that Medigap policies do not cover prescription drugs. If you choose Original Medicare and a Medigap plan, you will still need to purchase a separate Part D plan for your medications.

A close-up photo of a hand circling the months around a 65th birthday on a calendar, representing the Medigap enrollment period.
A hand marks a sixty-fifth birthday on a calendar to track important Medigap enrollment deadlines.

When to Buy a Medigap Policy

The best time to buy a Medigap policy is during your 6-month Medigap Open Enrollment Period. This period starts on the first day of the month in which you are both 65 or older and enrolled in Medicare Part B. During this window, an insurance company cannot refuse to sell you any Medigap policy it offers, regardless of your health status. They also cannot charge you more because of pre-existing health conditions.

If you miss this window and try to buy a policy later, you may have to go through medical underwriting, and companies could deny you coverage or charge you a higher premium based on your health. This makes the Medigap Open Enrollment Period one of the most important deadlines to watch when you are new to Medicare.

Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Share this article

Facebook Twitter Pinterest LinkedIn Email

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Search

Latest Posts

  • Smiling senior man in a plaid shirt and apron tending to potted plants outside a greenhouse. 10 Jobs That Require Zero Prior Experience and Hire Retirees on the Spot
  • An older man wearing a denim apron and gloves tends to potted plants on wooden shelves inside a greenhouse. 12 Low-Stress Part-Time Jobs Perfect for Retirees
  • A senior man wearing glasses sits at a wooden kitchen table reviewing a financial statement beside an open notebook. Can I Stop My Social Security and Restart Later?
  • Illustration of a Social Security card featuring a heavy gold bank vault door in the center. 10 Riskiest Places to Give Your Social Security Number
  • A woman in a sunroom looks at her phone next to a Social Security statement with the age 62 circled in yellow. Social Security COLAs at Risk for Millions — Here's Who the New Proposal Protects (and Who It Doesn't)
  • Mature couple sitting at a wooden kitchen table reviewing retirement planning documents and budget folders. 6 Key Risks That Could Drain Your Retirement Savings
  • A woman and an elderly man sitting at a wooden dining table reviewing a medical care and budget binder together. Can You Actually Get Paid to Care for an Aging Parent?
  • An older woman sits at a kitchen table writing in a ledger surrounded by receipts and a steaming mug. Latest Inflation Data Drives Down 2027 Social Security COLA Forecast
  • Donald Trump Money Secrets tax plans tariff Social Security Now Poised For Big 'Trump Bump' in 2027
  • 8 Signs You Need a Trust, Not Just a Will 8 Signs You Need a Trust, Not Just a Will

Newsletter

Get money-saving tips and personal finance advice delivered to your inbox.

Related Articles

A retired man sits at a kitchen table surrounded by financial statements and a calculator, looking concerned as he reviews his budget.

8 Signs You’re Spending Too Much In Retirement Without Realizing It

Learn the 8 hidden warning signs that you are spending too much in retirement and…

Read More →
money 2023 buffett income

9 Financial Lessons From Warren Buffett and Charlie Munger

Index funds are a great invention Even if markets might go crazy, it’s still very…

Read More →
credit score

9 FAST Ways To Improve Your Credit Score in 2023

A green credit card sits alongside a laptop and notebook, providing the essential tools to…

Read More →
social security

Social Security Could Slash Benefits by 2035 If No Action is Taken!

A pensive man gazes out a window, holding a mug while contemplating the future safety…

Read More →
Illustration of a Social Security card featuring a heavy gold bank vault door in the center.

10 Riskiest Places to Give Your Social Security Number

Discover the 10 riskiest places to share your Social Security number, when you can legally…

Read More →
An ink and watercolor illustration of a magnifying glass over a contract revealing hidden red exclamation marks and caution signs.

9 Signs a Financial Advisor Isn’t the Right Fit

Spot the 9 critical red flags that indicate your financial advisor isn't the right fit,…

Read More →
Close-up of house keys on a wooden table with moving boxes and a sold sign in the blurred background.

7 Signs It Might Be Time to Downsize

Discover the seven undeniable signs that it is time to downsize your home, cut monthly…

Read More →
halloween on a budget tariffs

Canada and Mexico Tariffs Provoke Ripple Effects on Our Prices

Tariffs on Canada and Mexico recently took effect, and they “promise” to raise prices for…

Read More →
A mature couple looking at a tablet together on a sunny patio, appearing confident about their financial future.

Married or Divorced? Don’t Miss This Social Security Tip That Could Increase Your Checks

Married, divorced, or widowed? You could be missing out on thousands in Social Security. Learn…

Read More →
The Money Place

Make money work for you!

Inedit Agency S.R.L.
Bucharest, Romania

contact@ineditagency.com

Trust & Legal

  • Contact
  • Editorial Policy
  • Advertiser Disclosure
  • FAQ
  • Subscribe
  • Unsubscribe
  • Privacy Policy
  • Terms and Conditions
  • Disclaimer
  • Do not sell my personal information
  • Request to Know
  • Request to Delete
  • CA Private Policy

Categories

  • Budgeting
  • Personal Finance
  • Shopping
  • Taxes

© 2026 The Money Place. All rights reserved.