Plan year 2027 · Aetna · Alameda County, CA
Aetna plans ending in Alameda County for 2027
Aetna is ending 3 plans here for 2027 but still offers 4 other plans in Alameda County.
Step 1 · Check your plan
Is your Aetna plan affected?
Tap your plan to see its 2027 status in Alameda County, or type its name.
Is your plan one of these?
Aetna has notified CMS that 3 plans in Alameda County will no longer be offered starting January 1, 2027. Members will need to choose new coverage during the Annual Enrollment Period (October 15 – December 7, 2026). An estimated 5,006 Aetna members in Alameda County are affected.
Affected Aetna plans
| Plan | What's changing | Effective | What members must do |
|---|---|---|---|
Aetna Medicare Enhanced (PPO) H5521-581 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
Aetna Medicare Signature (PPO) H5521-425 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
Aetna Medicare Eagle (PPO) H5521-369 · PPO | Termination | January 1, 2027 | Choose a new plan before the deadline. |
What this means for you
If your plan is being terminated
The plan will not exist in 2027. If you do nothing, you return to Original Medicare on January 1 with no drug coverage. You get a Special Enrollment Period from December 8 through the end of February, and guaranteed-issue rights to buy a Medigap policy for 63 days after your coverage ends.
Can you stay with Aetna in Alameda County?
Yes. Aetna offers 4 other Medicare Advantage plans in Alameda County for 2027, so switching plans doesn't have to mean switching carriers. Check that your doctors and prescriptions carry over before you choose.
| Plan | Type | Monthly premium |
|---|---|---|
| Aetna Medicare Chronic Care (HMO C-SNP)Aetna Medicare$0/moHMO C-SNP | HMO C-SNP | $0 |
| Aetna Medicare Eagle (HMO)Aetna Medicare$0/moHMO | HMO | $0 |
| Aetna Medicare Signature Extra (HMO)Aetna Medicare$0/moHMO | HMO | $0 |
Showing the 3 lowest-premium of 4 Aetna plans.
Plans available in Alameda County for 2027
Losing a plan does not mean losing options. 30 Medicare Advantage plans from 9 carriers are offered in Alameda County, California for 2027. 18 have a $0 monthly premium, and 2 are D-SNP plans for people with both Medicare and Medicaid.
| Plan | Type | Monthly premium |
|---|---|---|
| Aetna Medicare Chronic Care (HMO C-SNP)Aetna Medicare$0/moHMO C-SNP | HMO C-SNP | $0 |
| Aetna Medicare Eagle (HMO)Aetna Medicare$0/moHMO | HMO | $0 |
| Aetna Medicare Signature Extra (HMO)Aetna Medicare$0/moHMO | HMO | $0 |
| Alignment Health BreathEasy Plus 041 (HMO C-SNP)Alignment Health Plan$0/moHMO C-SNP | HMO C-SNP | $0 |
| Alignment Health Heart & Diabetes 010 (HMO C-SNP)Alignment Health Plan$0/moHMO C-SNP | HMO C-SNP | $0 |
Showing the 5 lowest-premium of 30 available plans. 2027 star ratings are published by CMS in early October 2026. Premiums shown are the consolidated Part C + D monthly premium.
Dates that matter
Your ANOC letter arrives
Carriers must mail the Annual Notice of Change — and non-renewal notices — before enrollment opens.
Annual Enrollment Period
Pick your 2027 plan. Coverage you choose starts January 1, 2027.
How it works →Special Enrollment Period
Members of terminated plans get extra time to choose a new Medicare Advantage or Part D plan.
How it works →Guaranteed-issue Medigap window
Losing your plan gives you the right to buy select Medigap policies with no health questions.
Medicare Advantage Open Enrollment
Already in a Medicare Advantage plan on January 1? You can make one change: switch plans or go back to Original Medicare.
How it works →
Other carriers changing plans in Alameda County
Other California counties Aetna is leaving
Step 2 · Tell us where to send your options
Losing your Aetna plan? Here are your options
Step 3 · Choose your path
You're all set.
Both options are free. Either way, your information stays with our office.