Medicare Supplement Plans: Your Complete Medigap Guide

If you're enrolled in Original Medicare (Parts A and B), you've probably noticed that it doesn't cover everything. Deductibles, copayments, and coinsurance can add up quickly. That's where Medicare Supplement Insurance—commonly called Medigap—comes in. These policies help fill the "gaps" in Original Medicare coverage, giving you more predictable healthcare costs and greater peace of mind.

What Is Medigap and How Does It Work?

Medigap policies are sold by private insurance companies and work alongside Original Medicare. Here's how the process typically works: Medicare pays its share of approved healthcare costs first, then your Medigap policy pays its share according to your plan's benefits. You'll pay a monthly premium to the insurance company in addition to your Medicare Part B premium.

It's important to understand that Medigap only works with Original Medicare—it doesn't work with Medicare Advantage plans. Additionally, Medigap policies don't include prescription drug coverage, so you'll need to enroll in a separate Medicare Part D plan if you want drug coverage.

Understanding Standardized Medigap Plan Letters

Medigap policies are standardized by the federal government, meaning each plan letter offers the same basic benefits regardless of which insurance company sells it. The standardized plans include A, B, C, D, F, G, K, L, M, and N. (Note: Plans C and F are only available to those who became eligible for Medicare before January 1, 2020.)

Each plan letter covers different combinations of benefits:

Plans F and G are among the most comprehensive options. Plan G covers nearly all out-of-pocket costs except the Part B deductible and has become increasingly popular since Plan F was phased out for new enrollees.

Plan N offers solid coverage at typically lower premiums but requires small copayments for doctor visits and emergency room visits.

Plans K and L provide partial coverage for most benefits, requiring you to pay a percentage of costs until you reach an annual out-of-pocket limit.

Plans A, B, D, and M offer varying levels of coverage, with Plan A providing the most basic benefits and other letters adding different combinations of additional coverage.

The key takeaway: the coverage for each plan letter is identical across all insurance companies, but premiums can vary significantly.

Monthly Premium Considerations and Guaranteed Issue Rights

While Medigap plans are standardized, monthly premiums differ based on several factors. Insurance companies may price policies using different methods—some base rates on your age, others use community rating (same price for everyone), and some use issue-age rating (based on your age when you first buy).

Your location also matters. Premiums vary by state and even by ZIP code within states like New Jersey. The insurance company's pricing strategy, administrative costs, and claims experience all influence what you'll pay.

Guaranteed issue rights are critical to understand. During your Medigap Open Enrollment Period—the six-month window starting when you're 65 or older and enrolled in Part B—insurance companies cannot deny you coverage, charge you more, or make you wait for coverage to start due to pre-existing health conditions. This is the best time to purchase a Medigap policy.

Certain situations also trigger guaranteed issue rights, such as losing employer coverage or moving out of a Medicare Advantage plan's service area. Outside these protected periods, you may face medical underwriting.

How to Choose the Right Medigap Plan

Choosing the right Medigap plan involves balancing coverage and cost. Consider these factors:

Your healthcare needs: Do you visit doctors frequently? Do you have ongoing health conditions? More comprehensive plans may save you money if you use healthcare services regularly.

Your budget: Can you afford higher monthly premiums in exchange for lower out-of-pocket costs when you need care? Or would you prefer lower premiums with some cost-sharing?

Your travel habits: If you travel frequently, especially internationally, some Medigap plans offer foreign travel emergency coverage.

Future considerations: Remember that while you can switch Medigap plans later, you may have to go through medical underwriting unless you qualify for guaranteed issue rights.

Get Expert Guidance for Your Medigap Decision

Choosing a Medicare Supplement plan is an important decision that affects both your healthcare coverage and your budget. Every person's situation is unique, and what works well for your neighbor might not be the best fit for you.

The licensed Medicare advisors at New Jersey Medicare Advisory can help you compare plans, understand your options, and find coverage that matches your needs and budget. We're here to answer your questions and guide you through the enrollment process.

Call us today at 856-221-7051 to schedule your free consultation and discover which Medigap plan is right for you.