Boeing retirees 'shocked' by 400% jump in Medicare Advantage health insurance premiums | The Seattle Times
https://www.seattletimes.com/business/boeing-retirees-shocked-by-400-jump-in-health-insurance-premiums/

My backyard neighbor keeps warning me about one-way doors in Medicare decisions. Gem says..

=======

In Medicare, almost no enrollment choice is completely permanent, but several structural decisions function as "one-way doors" because they lock in irreversible financial penalties or create medical situations that are practically impossible to undo. [1] (https://www.youtube.com/shorts/hxG4SMtiC8g)
When people talk about irreversible Medicare decisions, they are usually referring to these three critical pitfalls:

1. Missing the Initial Medigap Window (The 46-State Trap)

When you first enroll in Medicare Part B at age 65 or older, you get a one-time, 6-month Medigap Open Enrollment Period. During this window, you have a guaranteed right to buy any Medicare Supplement (Medigap) plan with no health questions asked. [1] (https://cahealthadvocates.org/medicare-advantage/when-you-have-guaranteed-issue-rights-to-switch-from-a-medicare-advantage-plan-to-a-medigap-policy/), [2] (https://www.healthline.com/health/medicare/switching-from-medicare-advantage-to-medigap), [3] (https://www.youtube.com/watch?v=ixq9Id0w9OA)
• Why it is practically unrevocable: If you bypass Medigap during this window (either by choice or by enrolling in a Medicare Advantage plan for more than a year), you lose your guaranteed issue right in 46 states. If you develop a health condition later and try to buy a Medigap plan, private insurers can use medical underwriting to deny you coverage or charge astronomical premiums. For most seniors, this effectively locks them out of traditional Medigap forever. [1] (https://www.themadisonpartners.com/8-questions-before-switching-to-original-medicare/), [2] (https://www.youtube.com/watch?v=JLMdGi_HZ6s&t=117), [3] (https://www.youtube.com/watch?v=ixq9Id0w9OA)

2. Missing the Part B or Part D Enrollment Deadlines

If you do not sign up for Medicare Part B (medical insurance) or Part D (prescription drugs) when you are first eligible—and you do not have "creditable" coverage from a current employer—you can enroll later, but you face permanent financial penalties.
• The Part B Penalty: Your monthly premium goes up by 10% for each full 12-month period you could have had Part B but didn't. This penalty sticks with you for life.
• The Part D Penalty: You are charged 1% of the national base beneficiary premium per month for every month you went without creditable coverage. Like Part B, this surcharge is permanent and added to your premium every single month you have a drug plan.

3. Choosing Plan F or C (If Eligible After 2020)

Federal law changed the rules for Medigap Plan F and Plan C. Anyone who became newly eligible for Medicare on or after January 1, 2020, is legally prohibited from buying these plans.
• Why it is unrevocable: If you were eligible before 2020 and currently hold a Plan F or Plan C, you are allowed to keep it. However, if you ever drop that specific plan or switch to a newer plan design (like Plan G), you can never get Plan F or C back. The decision to leave those legacy plans is entirely permanent.

4. Overlooking High-Deductible "One-Way Doors"

Enrolling in a high-deductible Medigap option (like High-Deductible Plan G) can sometimes be a one-way street. While you can switch plans during open enrollment windows, moving from a high-deductible plan to a standard, full-coverage plan down the road usually triggers medical underwriting. If you develop a chronic illness while on a high-deductible plan, you may be permanently locked into paying those high out-of-pocket costs because no company will underwrite you to switch to a comprehensive plan. [1] (https://www.youtube.com/watch?v=JLMdGi_HZ6s&t=117), [2] (https://www.youtube.com/shorts/hxG4SMtiC8g)
If you are weighing a specific choice right now, let me know:
• Are you turning 65 soon, or are you already enrolled?
• Which state do you live in? (States like NY, CT, MA, and CA have special rules that alter these traps).
I can map out exactly which choices are safe to test and which ones you'll be locked into.
/>

QuoteMedicare Advantage (originally created as Medicare+Choice in 1997 and renamed in 2003) began to surge in popularity significantly in the late 2000s and 2010s, eventually surpassing half of all eligible Medicare beneficiaries by 2023.

So I probably started researching it around 2013 when I was approaching 65 and having to make decisions about Social Security ^{(work until 70)}. MAdv wasn't all that popular in my rural area, or so it seemed.

>one-way doors

THAT is what I found. Some financial advisor sites were recounting horror tales of cases where retirees had originally opted for MAdv but later decided to switch to the .gov's Medicare. Nope, almost impossible.

BTW, this isn't the first MAdv article I've seen over the last few weeks or months but it was the 400% that made it impossible to ignore.