Medicare Supplement
Can You Switch Your Medigap Policy Right Now?
BURBANK, Calif. — If you have a Medicare Supplement (Medigap) policy and you have been wondering whether you can move to a different one, the honest answer is: it depends on when you try, why you are trying, and what state you live in when you apply. Federal law protects you at certain moments. Outside those moments, an insurer in most states can look at your health before saying yes. That single fact — whether medical underwriting applies — is what usually decides if a switch is easy, expensive, or off the table.
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Click to call 855-729-3240Key takeaways
- Outside of protected windows, most states let Medigap insurers use medical underwriting, which means your health can affect whether you are approved or what you pay.
- Federal guaranteed-issue rights apply in specific situations, such as losing other coverage through no fault of your own, and they let you buy certain Medigap policies without health questions.
- Some states add extra protections — a birthday rule, an anniversary rule, or continuous open enrollment — so California residents should confirm current rules with their SHIP (HICAP) or the California Department of Insurance.
- Before switching, compare the new policy carefully and do not cancel your current Medigap until the new one is approved and in force.
Here is a plain-language guide to how the timing works, what "guaranteed issue" actually means, and what to verify with California resources before you make a move.
What "switching Medigap" really means
A Medigap policy is private insurance that works alongside Original Medicare (Part A and Part B). It helps with some of the out-of-pocket costs Medicare does not cover, like coinsurance. Standardized Medigap plan letters (A, B, D, G, K, L, M, N, and — for those eligible before 2020 — C and F) offer the same basic benefits from company to company, but premiums vary.
"Switching" usually means one of three things:
- Changing from one Medigap plan letter to another (say, Plan N to Plan G).
- Staying with the same plan letter but moving to a different insurance company.
- Leaving Medicare Advantage and buying a Medigap policy to go with Original Medicare.
Each of these can trigger medical underwriting, unless a federal or state rule protects you.
Your first Medigap window: the six-month open enrollment
The strongest protection is the one-time, six-month Medigap Open Enrollment Period. It starts the month you are both 65 or older and enrolled in Part B. During this window, you can buy any Medigap policy sold in your state without answering health questions. Insurers cannot turn you down or charge you more because of a pre-existing condition.
This window does not repeat. Once it ends, your options depend on federal guaranteed-issue rights, state rules, or an insurer's willingness to accept you after reviewing your health.
Federal guaranteed-issue rights
Federal law gives you the right to buy certain Medigap policies without underwriting in specific situations, according to CMS. Common examples include:
- Your Medicare Advantage plan leaves your area or stops serving Medicare, or you move out of its service area.
- You joined Medicare Advantage when you first became eligible for Medicare and you want to switch back to Original Medicare within the first 12 months (a "trial right").
- Your employer or union coverage that pays after Medicare ends.
- Your Medigap insurer goes bankrupt or misleads you.
These rights usually last 63 days from the qualifying event. They typically limit you to certain plan letters, not the entire menu. Medicare.gov has the full list, and it is worth reading carefully before you assume you qualify.
State rules that can add more chances to switch
Some states have added their own protections on top of the federal rules. Depending on the state, these can look like:
- A birthday rule that opens a short window each year around your birthday to switch to certain Medigap plans without underwriting.
- An anniversary rule tied to your policy's start date.
- Continuous or year-round open enrollment for Medigap.
Rules, plan-letter limits, and windows differ, and they can change. Because this article cannot confirm every current detail for California, the safest step is to check with California's SHIP — known here as HICAP (Health Insurance Counseling and Advocacy Program) — or the California Department of Insurance. Burbank residents can also call 1-800-MEDICARE or visit medicare.gov.
What medical underwriting looks like
If no federal or state protection applies, most insurers can ask about your health. That may include questions about medications, recent hospital stays, or specific conditions. Based on your answers, the insurer might:
- Approve you at their standard rate.
- Approve you at a higher rate.
- Decline your application.
Underwriting is why many people who are healthy shop their Medigap coverage from time to time — and why people managing serious conditions often stay put unless a guaranteed-issue right opens up.
A few practical tips before you switch
- Do not cancel your current Medigap policy until the new one is approved and in effect. Most states, including California, give you a 30-day "free look" period on the new policy.
- Compare the plan letter benefits, not just the premium. A lower price on a different plan letter may mean different cost-sharing.
- Ask how each insurer prices its policy (by age at issue, by attained age, or community rated). This affects how the premium may change over time.
- Keep in mind that Medigap does not include Part D prescription drug coverage. That is a separate decision, with its own rules and its own enrollment periods (Annual Enrollment runs Oct. 15 – Dec. 7).
Burbank in context
Burbank is in Los Angeles County. Medicare plan availability — including Medicare Advantage — is set at the county level, so the menu of options is the same across Los Angeles County communities. Medigap, by contrast, is regulated at the state level, so California rules govern when and how you can switch.
By the numbers
Medicare Part B premium, 2006–2026
The standard monthly Part B premium has climbed from $88.50 in 2006 to $202.90 in 2026. Hover any point for that year’s premium.
Source: CMS. Standard premium shown; in some hold-harmless years many existing enrollees paid less. Confirm at Medicare.gov.
By the numbers
How people get Medicare in Los Angeles County
(MA penetration in Los Angeles County)
MA penetration from CMS enrollment data; Medigap share is an estimate. U.S. average is about 54% Medicare Advantage. These are area-level figures, not plan-specific.
Key dates
Medicare enrollment periods at a glance
- Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
- October 15 – December 7Annual Enrollment PeriodAnyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
- January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
- January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
- VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.
Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.
Explore
The parts of Medicare
Explore
When can you enroll? An interactive year
Enrollment windows are federal and the same nationwide. Confirm your personal dates at Medicare.gov or 1-800-MEDICARE.
Good to know
Frequently asked questions
Can I switch Medigap policies any time I want?
Does leaving Medicare Advantage guarantee I can get a Medigap policy?
Does California have a birthday rule or year-round Medigap open enrollment?
What happens if I am denied after applying to switch?
- CMS — Medicare Supplement Insurance (Medigap) rules (medicare.gov)
For personalized answers, contact Medicare.gov, 1-800-MEDICARE, or your local SHIP.
Also for Burbank
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This page was last updated: September 2026.