
Once you’re enrolled in Medicare Parts A and B, you’ll face one of the most important decisions in your Medicare journey: do you add a Medicare Supplement (Medigap) plan, or switch to a Medicare Advantage plan? These two paths cover your healthcare in very different ways — and choosing the right one can significantly impact your costs and flexibility.
How each plan works
Both options exist to fill the gaps that Original Medicare (Parts A and B) leaves behind — things like deductibles, copays, and coinsurance. But they take very different approaches.

Both options require you to remain enrolled in and continue paying your Part B premium. Neither replaces Part B.

A closer look at Medigap
Medigap plans are standardized by the federal government, which means a Plan G from one insurer covers the exact same benefits as a Plan G from another. The difference between insurers is only price and customer service — so it pays to shop around.
The most popular plans today
For people newly eligible for Medicare, Plan G is currently the most comprehensive option available. It covers everything except the Part B deductible. Plan N is a lower-premium alternative with small copays for some office and emergency room visits.
A closer look at Medicare Advantage
Medicare Advantage plans have grown in popularity thanks to their low premiums and added benefits. But they work differently than Original Medicare in some important ways.
Networks and prior authorization
Most Medicare Advantage plans are HMOs or PPOs, which means you’ll typically need to use in-network providers. Some plans also require prior authorization before covering certain procedures or specialist visits. If you have an established relationship with specific doctors or specialists, make sure they participate in any plan you’re considering.
Annual review is important
Medicare Advantage plans can change their premiums, copays, formularies, and networks every year. Each fall, you’ll receive an Annual Notice of Change document that outlines any updates for the coming year. The Annual Election Period (October 15 – December 7) is your opportunity to switch plans if needed.
Which one is right for you?
There’s no universal right answer — it depends on your health, your budget, and your priorities. Here are some general patterns:
Medigap tends to work well for people who see specialists frequently, travel often, want predictable costs, or place a high value on being able to see any Medicare-accepting provider nationwide.
Medicare Advantage can be a strong fit for people who are generally healthy, want lower monthly premiums, value extra benefits like dental and vision, and don’t mind working within a provider network.
The best way to make this decision is to compare the actual plans available in your zip code — premiums, networks, and benefits vary significantly by location.
Not sure which path is right for you?
At Powanda Insurance Agency, we’ll walk you through your local options at no cost to you. We’re independent, so we compare plans across multiple carriers to find what actually fits your situation.
If you’d like help reviewing your Medicare options with provider access in mind, click here to schedule a personal Medicare one-on-one, no-cost strategy session.
We don’t offer every plan available in your area. Any information provided is limited to those plans we do offer. Please contact Medicare.gov, 1-800-MEDICARE, or your State Health Insurance Program to get information on all of your options.