Can I switch Medicare Supplement carriers without losing coverage?

Yes — if you are switching between the same plan letter (for example, Plan G to Plan G), your benefits do not change at all. Plan letters are federally standardized. You give up nothing except the higher premium. The main risk is that switching after your Medigap Open Enrollment Period may require medical underwriting, meaning a carrier can decline you based on health. A licensed broker can check which carriers in your state currently accept switchers and whether you qualify.

When can I switch my Medicare Supplement plan?

You can apply to switch at any time, but outside of your initial 6-month Open Enrollment Period most states allow carriers to ask health questions and deny coverage. There are specific Guaranteed Issue rights (job loss, plan leaving the market, moving out of service area) that let you switch without underwriting. If you are in good health, switching is usually straightforward — you apply with the new carrier, get approved, then cancel the old plan once the new one starts.

Is Plan G the same at every insurance company?

Yes. Medicare Supplement plan letters are standardized by federal law. Plan G from Aetna covers exactly the same benefits as Plan G from Mutual of Omaha, United American, Cigna, or any other carrier. The only differences are the monthly premium and how aggressively the carrier raises rates over time. Switching carriers to get a lower rate does not reduce your coverage in any way.

How much can I save by switching Medicare Supplement carriers?

Savings vary by age, zip code, and how long you have been with your current carrier. Rate increases compound over time, so someone who has had Plan G for 5 or more years may be paying $50–$100 per month more than a new enrollee at a different carrier for identical coverage. A broker can pull current rates from all carriers in your area and calculate your exact potential savings.

What happens to my coverage when I switch Medicare Supplement plans?

Once your new plan is approved and active, you cancel your old plan — often with a 30-day notice. There should be no gap in coverage if you time it correctly. Your Medicare benefits (Original Medicare Parts A and B) stay exactly the same throughout the switch. The Medigap plan just wraps around them. Most people experience zero disruption to their doctor relationships or claims processing.

Can I switch from Medicare Advantage back to a Medicare Supplement plan?

Yes, but it requires careful timing. If you have been on Medicare Advantage for less than 12 months and had a Medigap plan before enrolling, you may have a trial right to return to your old Medigap plan. Outside that window, you can apply for Medigap during Medicare Advantage Open Enrollment (January 1 – March 31) or during your Special Enrollment Period, but most states allow carriers to use medical underwriting. Talk to a broker before making this switch.

Switch Medicare Supplement Carriers — Same Plan G, Lower Monthly Rate

Got a rate increase letter? You may be able to switch to a different carrier with the exact same Plan G coverage for $30–$100 less per month. Plan letters are federally standardized — switching carriers changes your bill, not your benefits.

Anthony Orner, licensed independent Medicare broker, can compare every carrier in your zip code in minutes. The service is free — brokers are paid by carriers, not by you.

By Anthony Orner, Licensed Medicare Broker · Last reviewed: March 2026

Check If You Can Switch — Free — 855-559-1700

Ready to Switch?

Use our online carrier comparison tool or call to speak with Anthony directly.

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Why Switching Carriers Does Not Change Your Coverage

Plan Letters Are Federally Standardized

Congress and CMS define exactly what each Medigap plan letter covers. A Plan G from any carrier pays the same bills in the same situations. Think of it like a can of Coke — same product at every store, different price tag.

Your Doctors Stay the Same

Medigap plans have no networks. You can see any doctor in the country who accepts Original Medicare, regardless of which carrier you use. Switching from Carrier A to Carrier B does not affect a single one of your doctor relationships.

Rate History Matters

Carriers differ in how aggressively they raise premiums each year. A carrier that came in cheapest 5 years ago may now be the most expensive. Comparing current rates and historical increases helps you find a carrier likely to stay affordable long-term.

How to Switch Medicare Supplement Carriers

Compare carriers in your zip code

An independent broker pulls rates from all carriers available to you — not just one company. You can do this online at switch.healthplans.now or by calling 855-559-1700.

Apply with the new carrier

Outside your initial Open Enrollment Period, most states allow health questions. If you are in good health, approval is typically fast — often same-day. Your broker walks you through the application at no cost.

Set your new plan's start date

Coordinate the new plan's effective date so there is no gap between the old plan ending and the new one beginning. A brief overlap (one day) is fine and avoids any risk of a gap.

Cancel your old plan

Once approved and your new plan is active, send written notice to your old carrier. Most require 30 days' notice. You are done — same coverage, lower bill.

See If You Can Save on Your Plan G Today

Free, no-obligation comparison from every carrier in your zip code.

Compare Online — switch.healthplans.now Call 855-559-1700

Free · Independent · Licensed in NJ and 34 states

What You Need to Switch Carriers

Information to have ready:

✓ Your Medicare number (red, white, and blue card)
✓ Your Medicare Part B effective date
✓ Current plan letter and carrier name
✓ Current monthly premium
✓ Basic health history (if outside Open Enrollment)

Common reasons people switch:

→ Annual rate increase letter arrived
→ Premium has grown $50+ since original enrollment
→ Friend or family member mentioned a lower rate
→ Just curious if a better rate exists
→ Broker hasn't reviewed coverage in 2+ years

Frequently Asked Questions

Related Resources

Medicare Supplement Plans NJ Plan G vs Plan N Medigap Costs in NJ Supplement vs Advantage