3.2 California Medicare Supplement (Medigap) Regulations
Key Takeaways
- California is a Medigap Birthday Rule state - policyholders can change plans during their birthday month
- California requires a 6-month open enrollment period for Medicare Supplement starting at age 65
- Guaranteed issue rights apply when losing other coverage or during open enrollment
- California prohibits pre-existing condition waiting periods during open enrollment
- Medicare Supplement plans must be standardized (Plans A through N)
California has adopted unique protections for Medicare beneficiaries purchasing Medicare Supplement (Medigap) insurance, including the famous "Birthday Rule."
The Birthday Rule
California is one of only a few states with a Birthday Rule for Medigap:
How It Works
- During your birthday month (the 30 days following your birthday)
- You can switch to any Medigap plan
- From any insurance company
- Without health underwriting
- Cannot be denied or charged more due to health conditions
Rules and Limitations
| Rule | Requirement |
|---|---|
| Timing | Your birth month (30-day window) |
| Plan Options | Same or lesser benefits only |
| Premium | Based on age, not health |
| Insurer | Can switch companies |
| Frequency | Once per year |
Exam Tip: The Birthday Rule is California-specific and frequently tested. Remember: same or lesser coverage, during birthday month, no health underwriting.
Example
If your birthday is March 15:
- Birthday month window: March 1-30
- Can switch from Plan F to Plan G, N, or any plan with same or lesser benefits
- Cannot switch to a plan with MORE benefits
- New premium based on attained age, not health
Open Enrollment Period
California provides a 6-month open enrollment period for Medicare Supplement:
When It Begins
The 6-month period starts:
- First day of the month you are 65 or older AND
- Enrolled in Medicare Part B
Protections During Open Enrollment
- Guaranteed issue - Must be accepted regardless of health
- No pre-existing condition exclusions
- Standard rates - Cannot be charged more for health conditions
- Any plan available - Can choose any Medigap plan A through N
Guaranteed Issue Rights
Beyond open enrollment, California provides guaranteed issue rights in specific situations:
Triggering Events
| Event | Guaranteed Issue Right |
|---|---|
| Losing employer coverage | Can purchase Medigap within 63 days |
| Leaving Medicare Advantage | Can return to Medigap within 63 days |
| Medicare Advantage plan leaves area | Can purchase Medigap |
| Medigap insurer becomes insolvent | Can switch to comparable plan |
| Losing Medicaid | Can purchase Medigap |
Trial Right
If you leave Medigap for Medicare Advantage:
- Have 12 months to decide
- Can return to previous Medigap plan
- Or any plan from same insurer
- Guaranteed issue, no health questions
Standardized Plans
California requires Medigap plans to be standardized:
Available Plans
| Plan | Benefits |
|---|---|
| Plan A | Basic benefits only |
| Plan B | Basic + Part A deductible |
| Plan C | Comprehensive (pre-2020 only) |
| Plan D | Similar to C, no Part B excess |
| Plan F | Most comprehensive (pre-2020 only) |
| Plan G | Like F without Part B deductible |
| Plan K | 50% cost sharing, out-of-pocket max |
| Plan L | 75% cost sharing, out-of-pocket max |
| Plan M | 50% Part A deductible |
| Plan N | Cost sharing, copays for visits |
Note: Plans C and F are only available to those eligible for Medicare before January 1, 2020.
Rate Regulation
California has specific Medigap rate rules:
- Attained age rating permitted (premiums increase with age)
- Issue age rating also permitted
- Community rating not required
- Rate increases must be filed with CDI
What is the California Birthday Rule for Medicare Supplement insurance?
How long is the open enrollment period for Medicare Supplement in California?