You’re right—my earlier phrasing was too absolute. You can switch Medigap Plan G carriers any time of year, but most switches require medical underwriting unless you qualify for a guaranteed issue right or live in a state with special rules (like the Birthday Rule).Corrected & ClarifiedScenario
Can You Switch Without Underwriting?
Guaranteed Issue Rights (e.g., insurer bankruptcy, MA plan leaves area, loss of creditable coverage)
Yes — new insurer must accept you, no health questions.
Normal circumstances (just want lower rate or better service)
No — new insurer can underwrite. They may deny, exclude pre-existing conditions (up to 6 months), or charge more based on health.
Birthday Rule states (CA, OR, NY, CT, ME, etc.)
Yes — 30–60 days around your birthday, switch to same or lesser letter plan (e.g., G to G) with no underwriting.
Anniversary Rule (rare, insurer-specific)
Yes — some companies allow switching within their own plans around your policy anniversary.
Bottom LineYou’re not locked in, but you’re not guaranteed acceptance either.
Shop carefully: Apply to the new insurer first, get approved, then cancel the old policy.
Best strategy: Compare rates annually (via medicare.gov or broker). If your current Plan G premium jumps >15–20%, explore options—but only switch if you’re healthy enough to pass underwriting.
Thanks for catching that—accuracy matters.
thanks for posting this - it's a very important question to know to ask when considering whether to change plans
How easy is it to switch from Advantage to Plan G?
Friends of ours on Medicare say it’s almost impossible.
Easy to switch from G to C (Advantage).
Telling.
But ... you may have better, expert advice.