Published on December 31, 2025

Washington Medigap Plans: A Complete Guide

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When it comes to Medigap, living in Washington gives you some unique advantages that people in other states don’t have. Our state has special rules, like “community rating,” which means your age won’t cause your premium to increase. We also have the “Birthday Rule,” giving you the flexibility to switch plans each year without answering a lot of health questions. Understanding these consumer protections is the key to finding the best value and maintaining control over your healthcare coverage for years to come. This article will walk you through these powerful, state-specific benefits and explain how you can use them to confidently select from the available Washington Medigap plans.

Key Takeaways

  • Shop Smart by Comparing Premiums: Since Medigap plans with the same letter (like Plan G) offer identical benefits across all companies, your main goal is to find the lowest monthly premium for the plan you want.
  • Prioritize Your Open Enrollment Period: Your one-time, six-month Medigap Open Enrollment window is your golden ticket. It guarantees you can buy any plan without answering health questions, which might not be the case later on.
  • Use Washington’s Unique Rules to Your Advantage: Washington is a “community-rated” state, meaning your age won’t affect your premium. You also get an annual opportunity around your birthday to switch to a plan with similar or fewer benefits without medical underwriting.

What is a Medigap Plan and How Does It Work in Washington?

If you’ve started looking into your Medicare options, you’ve probably realized that Original Medicare (Part A and Part B) doesn’t cover everything. After Medicare pays its share for a hospital stay or doctor’s visit, you’re often left with out-of-pocket costs like deductibles and coinsurance. These expenses can be unpredictable and add up quickly, which is where a Medigap plan can be a huge help.

Think of a Medigap plan as a safety net for your healthcare budget. It’s an extra insurance policy you can buy from a private company that works alongside your Original Medicare. Its job is to pick up many of the costs that Medicare leaves behind, giving you more financial predictability and peace of mind. Understanding how these plans function is the first step toward building a comprehensive healthcare plan that fits your needs and protects your savings.

What is Medicare Supplement Insurance?

Medigap is just another name for Medicare Supplement Insurance. These plans are designed to help pay for some of the remaining healthcare costs, or “gaps,” that Original Medicare doesn’t cover. This can include your Part A hospital deductible, Part B coinsurance for doctor visits, and even costs for skilled nursing facility care.

These policies are sold by private insurance companies, but they are standardized by the federal government. This means that a Medigap plan with a specific letter, like Plan G, must offer the exact same set of basic benefits no matter which company you buy it from in Washington. This makes it much easier to compare plans based on price and company reputation.

How Medigap Works with Original Medicare

To get a Medigap plan, you must first be enrolled in Original Medicare Parts A and B. A Medigap policy doesn’t replace your Medicare; it simply works with it. When you receive medical care, Medicare pays its approved amount first. Then, your Medigap plan steps in to pay its share of the remaining costs, like your coinsurance or deductible, directly to the provider.

This process is usually seamless. You’ll show both your Medicare card and your Medigap plan card at your doctor’s office or hospital. Because Medigap plans are standardized, you can see any doctor or visit any hospital in the U.S. that accepts Original Medicare. This gives you the freedom to choose your healthcare providers without worrying about network restrictions, which is a major advantage for many people.

Which Medigap Plans Can You Get in Washington?

When you start looking at Medigap plans, you’ll notice they’re labeled with letters. This is part of a nationwide system designed to make your life easier. In Washington, you have access to several of these standardized plans, each offering a different level of coverage to fill the gaps left by Original Medicare.

The most important thing to remember is that the benefits for each plan letter are the same, no matter which insurance company sells it. This means a Plan G from one company has the exact same medical coverage as a Plan G from another. The only real difference is the price you’ll pay for it. This standardization lets you shop around and compare costs without having to worry about confusing differences in benefits.

A Look at Standardized Plans A Through N

Medigap plans are labeled with letters, from A through N. This system makes it simple to compare your options because a plan with a specific letter must offer the same set of basic benefits regardless of the insurance company. For example, every Medigap Plan G provides the same coverage for Medicare Part A and B coinsurance and copayments. While the benefits are standardized, the monthly premiums are not. This is why you might see different prices for the same plan from different companies. Understanding this allows you to discover Washington Medigap options and find the best value for the coverage you need, focusing on price and company reputation.

Why Plan G is a Popular Choice

For anyone new to Medicare, Plan G is often the top contender, and for good reason. It’s one of the most comprehensive Washington Medicare Supplement plans available today. Plan G covers nearly all of your out-of-pocket costs, including hospital deductibles and coinsurance for doctor visits. The only major expense it doesn’t cover is the annual Medicare Part B deductible. Once you pay that deductible yourself each year, Plan G kicks in to cover the rest of your approved costs. This straightforward approach provides excellent financial protection against unexpected medical bills. For those looking for a lower premium, there is also a high-deductible version of Plan G available.

Considering Plan N for Lower Premiums

If you’re looking for a solid balance between comprehensive coverage and a more affordable monthly premium, Plan N is an excellent choice. It covers many of the same things as Plan G but asks you to share a small portion of the costs for routine care. With Plan N, you’ll typically pay a copay of up to $20 for some office visits and a $50 copay for emergency room visits that don’t result in a hospital admission. These predictable copays help keep your monthly premium lower than what you’d pay for Plan G. For many people, this trade-off is well worth it, providing peace of mind without the higher price tag.

Who Can Still Enroll in Plan F?

You may have heard about Plan F, which is known for offering the most complete coverage available. It pays for nearly all your out-of-pocket costs, including the Medicare Part B deductible. However, due to a change in federal law, Plan F is no longer available to everyone. You can only enroll in Plan F if you were eligible for Medicare before January 1, 2020. If you became eligible for Medicare on or after that date, you won’t be able to purchase Plan F. For those who do qualify, it remains a popular option for its first-dollar coverage, but for new beneficiaries, Plan G now offers the most similar level of comprehensive benefits.

When and How to Enroll in a Washington Medigap Plan

Timing is everything when it comes to enrolling in a Medigap plan. Signing up at the right time can save you money and ensure you get the coverage you want without any hassle. The process isn’t complicated, but it does have specific rules and windows you need to be aware of. Think of it as a one-time opportunity to lock in your coverage under the best possible conditions. Let’s walk through the key steps for enrolling, from checking your eligibility to understanding your consumer protections. Knowing these details will help you make a confident and informed decision about your health care.

Are You Eligible for Medigap?

Before you can purchase a Medigap plan, you need to have your foundation in place. The main requirement is that you must be enrolled in Original Medicare, which includes both Part A (hospital insurance) and Part B (medical insurance). Medigap plans are specifically designed to work alongside Original Medicare, filling in the financial gaps like deductibles and coinsurance. You can’t buy a Medigap policy if you have a Medicare Advantage Plan. The Washington State Office of the Insurance Commissioner provides helpful resources on Medigap plan coverage and costs that can give you a clearer picture of how these plans function with your primary Medicare benefits.

Your Medigap Open Enrollment Window

The best time to buy a Medigap policy is during your Medigap Open Enrollment Period. This is a six-month window that automatically starts on the first day of the month you are both 65 or older and enrolled in Medicare Part B. During this protected period, an insurance company cannot use medical underwriting. This means they can’t refuse to sell you any Medigap plan they offer, charge you more because of your health status, or make you wait for coverage to start. This is your golden ticket to getting the plan you want, so it’s crucial not to miss it.

Understanding Your Guaranteed Issue Rights

In Washington, you are protected by “guaranteed issue rights,” which are situations that give you the right to buy a Medigap policy. Your Medigap Open Enrollment Period is the most common example of these rights in action. However, you might also qualify for them in other specific circumstances, like if you lose your current health coverage. These rights ensure that insurance companies must offer you certain Medigap plans without considering your health history. Exploring the different Washington Medigap options can help you understand when these special protections apply, giving you peace of mind that you can secure coverage when you need it most.

How Much Do Washington Medigap Plans Cost?

Understanding the cost of a Medigap plan is a top priority for most people, and rightly so. You want to know exactly what to budget for each month. While the price tag can vary, Washington has some unique rules that can work in your favor. The monthly premium you’ll pay depends on the plan you select, the company you choose, and a few personal details.

Let’s break down what you can expect to pay for a Medigap plan in Washington and explore the factors that influence your final premium. We’ll also cover a special state-specific rule that makes Washington one of the most flexible states for Medigap policyholders. This information will help you find a plan that fits both your healthcare needs and your budget without any surprises.

What to Expect for Monthly Premiums

When you start shopping for Medigap plans, you’ll find that monthly premiums in Washington generally fall between $130 and $240. This range gives you a good starting point, but remember that the exact cost will depend on the plan you choose. For example, a comprehensive plan like Plan G will typically have a higher premium than a plan with more cost-sharing, like Plan N.

The insurance company offering the plan also plays a big role in the price. Two different companies can offer the exact same Plan G, but their monthly premiums might be quite different. That’s why it’s so important to compare plans from various carriers to ensure you’re getting the best value.

What Factors Affect Your Premium?

Several key factors determine the premium for your Medigap plan. The most significant is the plan type you select. Each standardized plan (like Plan G or Plan N) offers a different level of coverage, and the more coverage a plan provides, the higher its premium will be. The insurance carrier you buy from also sets its own rates, so shopping around is essential.

Another factor that can impact your cost is tobacco use. Insurance companies are permitted to charge higher premiums for smokers. However, one of the biggest advantages in Washington is that your age and gender do not affect your initial premium. This is because Washington uses a “community-rated” pricing structure, which is different from most other states.

How Washington’s “Community Rating” Can Help You

Washington is one of a few states that uses a community-rated system for Medigap plans, and this is a huge benefit for you. It means that every person who buys the same Medigap plan from the same company pays the same monthly premium, regardless of their age or gender. A 65-year-old will be offered the same price as a 75-year-old. This pricing model prevents your premium from increasing simply because you get older.

This rule also gives you incredible flexibility. In Washington, you have the right to switch from one Medigap plan to another at any time throughout the year without going through medical underwriting. This means you won’t have to answer health questions or worry about being denied coverage based on a pre-existing condition. This freedom to change plans makes it much easier to adapt your coverage as your needs and budget evolve over time.

Clearing Up Common Medigap Myths

When you’re figuring out Medicare, it’s easy to run into information that’s outdated or just plain wrong. Medigap plans, in particular, are surrounded by a lot of confusion. Let’s walk through some of the most common myths so you can separate fact from fiction and feel confident about your coverage choices.

Myth: Medigap Covers Everything

It’s a common assumption that once you have a Medigap plan, you’re 100% covered for any medical expense that comes your way. While these plans are excellent at filling the cost-sharing gaps in Original Medicare—like deductibles and coinsurance—they aren’t designed to cover everything. Think of them as a partner to Medicare Parts A and B, not a replacement for all other types of insurance. For example, Medigap plans typically don’t pay for long-term care, routine dental or vision check-ups, or hearing aids. It’s important to understand these limitations of Medigap coverage to avoid any surprises down the road.

Myth: Medigap is Too Expensive

Seeing the monthly premium for a Medigap plan can sometimes cause a bit of sticker shock, leading people to think it’s an unaffordable luxury. But it’s helpful to look at the bigger picture. That premium buys you peace of mind and predictability, protecting you from potentially thousands of dollars in out-of-pocket costs if you have a serious health issue. The price also varies quite a bit depending on the plan you choose and the insurance company. Instead of focusing only on the premium, consider the overall value. A slightly higher monthly payment could save you a fortune in the long run, which is a key point when debunking myths about Medicare.

Myth: You Can Switch Plans Anytime

This is one of the most critical misunderstandings about Medigap. Many people believe they can hop from one plan to another whenever they find a better price. While that would be nice, it’s not usually the case. Your six-month Medigap Open Enrollment Period, which starts when you’re 65 and enrolled in Part B, is your best opportunity to enroll. During this time, you have a guaranteed right to buy any plan sold in your state. Outside of that window or a few other special situations, insurance companies can generally require medical underwriting. This means they can review your health history and may charge you more—or even deny coverage altogether.

What’s Not Covered by Medigap in Washington?

Medigap plans are fantastic for covering many of the out-of-pocket costs that Original Medicare leaves behind, like copayments and deductibles. But they aren’t designed to cover everything. Understanding what’s excluded is just as important as knowing what’s included, as it helps you plan for your total healthcare budget and avoid unexpected bills. Let’s walk through the main services that Medigap plans in Washington do not cover, so you can feel fully prepared.

Prescription Drugs (and Why You Need Part D)

One of the most common questions we get is about prescriptions. It’s a simple answer: Medigap plans don’t include prescription drug coverage. This might seem like a big omission, but there’s a different piece of the Medicare puzzle designed specifically for this: Part D. You’ll need to enroll in a separate Medicare Part D plan to help with the cost of your medications. Think of it as a companion to your Original Medicare and Medigap coverage. Getting a Part D plan when you’re first eligible is the best way to make sure your drug costs are covered and to avoid any potential late enrollment penalties down the road.

Dental, Vision, and Hearing Care

If you’re hoping for coverage for your biannual dental cleaning, new eyeglasses, or hearing aids, you won’t find it in a Medigap plan. Because Original Medicare doesn’t cover routine dental, vision, or hearing services, there are no “gaps” for Medigap to fill. These plans are designed to supplement Medicare Parts A and B only. To get coverage for these essential services, you’ll need to look into purchasing separate, standalone insurance plans. Understanding these Medigap coverage limitations ahead of time helps you budget properly for your total healthcare needs and avoid any surprises when the bill arrives.

Long-Term Care and Other Common Exclusions

Another significant expense not covered by Medigap is long-term care. This refers to custodial care, like assistance with daily activities such as bathing and dressing, whether at home or in a nursing facility. While Medigap can help cover costs for short-term stays in a skilled nursing facility after a hospital visit, it is not a solution for ongoing, long-term care. This is a crucial distinction to understand as you plan for future health needs. Other services that fall outside of Medigap coverage include private-duty nursing and cosmetic procedures. Knowing these exclusions helps you form a complete picture of your healthcare coverage.

How to Choose the Right Medigap Plan for You

Picking the right Medigap plan doesn’t have to be overwhelming. When you break it down, it’s really about matching your personal health needs with a plan that fits your budget. The key is to understand what you’re buying and then shop around for the best price. Think of it as a simple, three-step process to find the coverage that gives you peace of mind. By focusing on benefits, your health, and the monthly premium, you can confidently select a plan that works for you.

Step 1: Compare Plan Benefits and Costs

The great thing about Medigap is that the plans are standardized by the government. Each plan is labeled with a letter, from A through N, and every plan with the same letter must offer the exact same basic benefits, no matter which insurance company sells it. This means a Plan G from one company is identical in coverage to a Plan G from another.

What isn’t identical, however, is the price. The monthly premium for that same Plan G can vary quite a bit between different insurance carriers. Your first step is to get familiar with what each plan letter covers and decide which benefits are most important to you. Once you know that, you can focus on comparing costs.

Step 2: Evaluate Your Personal Health Needs

Now it’s time to think about you. Take a moment to consider your current health and what you might need in the future. Do you visit specialists often? Do you have chronic conditions that require regular care? Or are you generally healthy and only see a doctor for annual check-ups? Your answers will help you choose a plan letter that aligns with your healthcare needs and what you can comfortably afford. For instance, if you prefer predictable costs and fewer out-of-pocket expenses, a more comprehensive plan like G might be a good fit. If you’re comfortable paying some copays in exchange for a lower monthly premium, Plan N could be a better choice.

Step 3: Use Tools to Compare Premiums

Once you’ve narrowed down your choice to a specific plan letter, your final step is to find the best price. Since the coverage is the same for each plan letter, you should always compare prices from different insurance companies to find the best deal. You can use the official Medicare Plan Finder tool to see which companies offer your chosen plan in Washington and what they charge for it. An independent insurance agent can also run these quotes for you. Taking the time to compare premiums is one of the smartest things you can do, as it can save you a substantial amount of money each year without sacrificing the quality of your coverage.

Can You Switch Medigap Plans in Washington?

Thinking about changing your Medigap plan can feel like a big decision, and the rules often seem complicated. The good news is that if you live in Washington, you have more flexibility than people in most other states. Washington has specific consumer protections that make it easier to switch from one Medigap plan to another if your needs or budget change over time.

Understanding these rules helps you make confident choices about your health coverage without the fear of being locked into a plan that no longer works for you. Let’s walk through how switching works here, what to look out for, and the best times to make a change.

The “Washington Birthday Rule” and Other Switching Opportunities

Washington offers a unique opportunity known as the “Birthday Rule.” This rule allows you to switch from one Medigap plan to another every year around your birthday, regardless of your health. You can move to a plan with equal or lesser benefits without having to go through medical underwriting. For example, you could switch from a Plan G to a Plan N, but not the other way around, without answering health questions. This is a fantastic protection that gives you the freedom to adjust your coverage as your life changes, ensuring your plan remains a good fit without the risk of being denied.

What is Medical Underwriting (and When Does It Apply)?

Medical underwriting is the process insurance companies use to review your health history. They use this information to decide whether to offer you a policy and how much to charge you. In many states, if you want to switch Medigap plans after your initial enrollment period, you have to go through underwriting, and a pre-existing condition could cause you to be denied. While Washington’s rules help you avoid this when switching between Medigap plans, underwriting can still apply in certain situations. For instance, if you are moving from a different type of health insurance, like a Medicare Advantage plan, to a Medigap plan, you might have to answer health questions.

When is the Best Time to Change Your Plan?

The absolute best time to buy a Medigap policy is during your Medigap Open Enrollment Period. This is a six-month window that starts on the first day of the month you are both 65 or older and enrolled in Medicare Part B. During this time, insurance companies are required to sell you any Medigap plan they offer, and they cannot use medical underwriting to charge you more or deny coverage because of your health history. While Washington’s special rules give you flexibility later on, this initial period is your golden ticket to get any plan you want with no questions asked. It’s the most secure and straightforward time to enroll.

Common Challenges When Choosing a Medigap Plan

Choosing a Medigap plan can feel like a big decision, and it’s completely normal to feel a little stuck. You’re not alone if you find the process confusing. Most people run into a few common hurdles, from figuring out which plan is which to making sure they don’t miss important deadlines. Understanding these challenges ahead of time is the best way to get through them smoothly and find a plan that gives you peace of mind. Let’s walk through the three biggest obstacles you might face and how to handle them.

Too Many Plan Options

When you first look at Medigap, you’ll see a sea of letters: Plan A, Plan G, Plan N, and so on. It’s easy to feel overwhelmed. Here’s a simple fact that makes it all much easier: Medigap plans are standardized. This means that a Plan G from one insurance company offers the exact same basic benefits as a Plan G from another. The only real difference is the price you’ll pay for the monthly premium. Your first step is to decide which plan letter fits your health and budget needs. Once you’ve picked a plan, your job simplifies to finding an insurance company that offers that specific plan at the most competitive price.

Strict Enrollment Deadlines

Timing is everything when it comes to Medigap. The best time to enroll is during your Medigap Open Enrollment Period. This is a six-month window that starts on the first day of the month you are both 65 or older and enrolled in Medicare Part B. This period is a one-time opportunity. During these six months, you have what are called “guaranteed issue rights.” This means an insurance company cannot use your health history to deny you coverage or charge you a higher premium. You can buy any Medigap plan sold in Washington, regardless of any pre-existing conditions. Missing this window can make it much harder and potentially more expensive to get a plan later on.

Answering Health Questions (and Why It Matters)

So, what happens if you miss your Open Enrollment Period or decide you want to switch plans down the road? In most cases, you’ll have to go through medical underwriting. This is just a formal way of saying the insurance company will ask you a series of health questions and review your medical history. You can apply to change Medigap plans at any time, but your eligibility isn’t guaranteed. Based on your health, an insurance company can legally charge you more than the standard rate or even deny your application completely. This is why that initial six-month enrollment period is so valuable—it’s your golden ticket to getting a plan without having to worry about your health status.

Where to Find Help with Your Medigap Plan

Figuring out Medigap plans can feel like a lot, but you don’t have to do it alone. Washington provides several excellent resources to help you understand your options and make a choice you feel confident about. Whether you prefer impartial government advice, online comparison tools, or personalized support from an expert, there’s a path forward for you. Using these resources can help you sort through the details and find a plan that truly fits your life.

Washington’s Statewide Health Insurance Benefits Advisors (SHIBA)

If you’re looking for free, unbiased guidance, Washington’s Statewide Health Insurance Benefits Advisors (SHIBA) program is an incredible resource. Trained volunteers can offer confidential help, answer your Medicare questions, and explain how different Medigap plans work. Because they aren’t affiliated with any insurance companies, you can trust that their advice is completely impartial. Think of them as your neutral, knowledgeable guides to the world of Medicare. To speak with a SHIBA advisor and get your questions answered, you can call their statewide helpline at 800-562-6900.

Official Medicare Plan Finder Tool

For those who like to do their own research online, the official Medicare Plan Finder Tool is a great place to start. This government website allows you to see and compare the Medigap policies available in your area. You can enter your information to get a general idea of the plans and their costs. While the tool is very helpful for getting a broad overview, it may not show every single plan on the market. For a complete list, you can always call 1-800-MEDICARE (1-800-633-4227) to get more detailed information directly from the source.

How The Big 65 Can Help

While state resources and online tools are valuable, sometimes you need someone to help you connect the dots for your specific situation. That’s where we come in. At The Big 65, we provide personalized assistance to help you sort through the complexities of Medigap. We take the time to understand your healthcare needs and financial picture. Our goal is to help you find a Medigap plan that offers the right coverage for you, so you can feel secure in your healthcare choices. We’re here to answer your questions and provide clarity every step of the way.

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Frequently Asked Questions

What’s the real difference between Medigap Plan G and Plan N? Think of it as a trade-off between your monthly premium and your out-of-pocket costs. Plan G is very comprehensive; after you pay your annual Part B deductible, it covers nearly everything else. This results in a higher monthly premium but very predictable costs. Plan N offers a lower monthly premium in exchange for you sharing some minor costs, like a small copay for doctor visits and emergency room trips. It’s a great option if you want solid protection but are comfortable with a few small, predictable payments for services.

Why is my six-month Medigap Open Enrollment Period so important? This six-month window is your one-time golden ticket to get any Medigap plan you want, no questions asked. It starts when you’re 65 or older and have Medicare Part B. During this period, insurance companies are legally required to sell you any plan they offer, and they cannot charge you more or deny you coverage because of your health history. If you miss this window, you may have to answer health questions to get a plan later, which could lead to higher rates or even a denial.

If I live in Washington, can I change my Medigap plan later on? Yes, Washington state has special rules that give you more flexibility than most other states. The “Birthday Rule” allows you to switch to a different Medigap plan with equal or lesser benefits each year around your birthday without having to answer health questions. This means you aren’t locked into your first choice forever and can adjust your coverage if your budget or needs change over time.

Will my Medigap premium go up every year as I get older? In Washington, your premium will not increase simply because you have a birthday. Our state uses a “community-rated” system, which means everyone in a specific area pays the same premium for the same plan, regardless of their age or gender. While premiums can still increase due to other factors like inflation, you are protected from age-based price hikes.

Do I still need to buy a separate plan for my prescriptions if I have Medigap? Yes, you absolutely do. Medigap plans are designed to fill the gaps in Original Medicare Parts A and B, and they do not include coverage for prescription drugs. To get help with the cost of your medications, you will need to enroll in a separate Medicare Part D prescription drug plan. It’s important to sign up for a Part D plan when you first become eligible to avoid a life-long late enrollment penalty.

About the Author

Karl Bruns-Kyler is a licensed independent Medicare insurance broker with over 20 years of experience helping clients make confident, informed healthcare decisions. Based in Highlands Ranch, Colorado, Karl works with Medicare recipients across more than 30 states, offering personalized guidance to help them avoid costly mistakes, find the right coverage, and maximize their benefits. Connect on LinkedIn