Turning 65 on or after September 1, 2026?
Understand Medicare Supplement Insurance with Confidence
Now is the time to get ready. Educational Medicare Supplement resources for residents of Arizona, Florida, North Carolina, Michigan, and Nevada.
Already over 65 and want to learn about Medigap — the coverage that helps with the roughly 20% Original Medicare leaves behind — or thinking about switching? This is for you. Nothing is covered at 100%, so plan accordingly.
The Broker for the People. The People's Broker.
FREE educational reviews · 1-on-1 guidance · Quick application process for Plan G, N, or F if you qualify.





Why Medigap
Why Medicare Supplement insurance?
Original Medicare pays a large share of approved costs, but not all of them. A Medicare Supplement policy is designed to help with the eligible costs that remain.
Works alongside Original Medicare
A Medigap policy pays after Medicare, helping with eligible costs Original Medicare leaves to you.
Any Medicare provider, nationwide
There is no network. Use any provider in the country that accepts Medicare assignment.
Standardized benefits
In most states, the benefits of a plan letter are the same from carrier to carrier.
Timing matters
Your six-month Medigap open enrollment window is the easiest time to obtain coverage.
Plan Letters
Popular Medicare Supplement plans
Benefits are standardized by letter in most states. Learn what each one does before comparing premiums.
Why GSS
Why choose Gilbert Services Southwest
We teach first. If a plan makes sense for your situation afterwards, the application process is quick.
Licensed in five states
Arizona, Florida, North Carolina, Michigan, and Nevada.
Education first
We explain the mechanics before anyone talks about an application.
No-pressure consultations
Ask questions, take notes, and decide on your own timeline.
One-on-one reviews
Free educational reviews by phone, text, or in person.
Responsive communication
Call or text and get a real human, not a call center queue.
Local expertise
Southwest roots with nationwide provider access for our clients.
Watch & Learn
Short visual clips
Just watch — short visual clips, not full explainers. More video coming soon on our YouTube channel.
Timing matters
Your Medigap open enrollment window is only six months long.
Any Medicare provider
No networks — see any provider that accepts Medicare assignment.
Plain-language education
We explain how Plan G, N, and F work before anything else.
Coverage that keeps up
Medigap helps with the eligible costs Medicare leaves behind.
Quick, simple applications
If a plan fits, the application process takes just minutes.
Resource Library
Educational resource library
Start with the fundamentals, then dig into plan comparisons and enrollment timing.
Medicare Supplement
What Is Medicare Supplement Insurance?
How Medigap sits alongside Original Medicare and what standardization actually means.
8 min read
Plan Comparisons
Plan G vs Plan N
Premium trade-offs, copays, and excess charges compared side by side.
7 min read
Medicare Basics
Original Medicare vs Medicare Advantage
Two different structures, two different sets of trade-offs.
9 min read
Enrollment
When Can I Enroll?
Open enrollment, guaranteed issue rights, and the six-month Medigap window.
6 min read
Costs
What Medicare Doesn't Cover
Nothing is covered at 100%. Here is where the gaps show up.
6 min read
Enrollment
The Turning 65 Checklist
A month-by-month timeline for the year before your Medicare start date.
5 min read
State Guides
Licensed in five states
Medigap rules are federal in structure but the details live at the state level. Start with your state.