【加州健保】The California Insurance Calendar: Navigating Open Enrollment and Medicare’s Annual Transfer Window | BIEU LAM INSURANCE SERVICE

In the world of insurance, your "guaranteed rights" are often tied to a clock. At Bieu Lam Insurance, we manage the calendars of thousands of families and seniors in the San Gabriel Valley to ensure no one is left with a coverage gap or a "penalty" for missing a deadline. As we navigate the 2026 plan year, three major windows define your ability to secure, change, or save on health coverage.

What are the key health insurance dates for 2026?

The primary window for most Californians is the Covered California Open Enrollment, which runs from November 1 to January 31. To ensure your health insurance is active on January 1, 2026, you must complete your enrollment by December 31, 2025. If you enroll between January 1 and January 31, your coverage will not begin until February 1, leaving you potentially uninsured for the month of January.

When can I change my Medicare plan for 2026?

For seniors, the Medicare Annual Enrollment Period (AEP) is a strict window from October 15 to December 7. This is your once-a-year opportunity to switch between Medicare Advantage and Original Medicare or to change your Part D drug plan. Changes made during this window take effect on January 1, 2026. If you already have a Medicare Advantage plan and realize in January that it doesn't fit your needs, you have a second "safety valve" window from January 1 to March 31 to make one final change.

What is the California Medigap "Birthday Rule"?

California offers a unique consumer protection known as the "Birthday Rule." This allows individuals already enrolled in a Medicare Supplement (Medigap) plan a 60-day window beginning on their birthday to switch to a different Medigap plan of equal or lesser benefits without any medical underwriting. This means you cannot be denied coverage or charged more based on your health history, making it the best time to shop for a lower premium.

Summary of the 2026 California Insurance Deadlines