Alameda County, California: 27 Medicare Advantage plans changing or leaving for 2027
Alameda County had 37 Medicare Advantage plans in 2026. For 2027, 10 are leaving the county and 17 are changing.
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Medicare Advantage plans in your area are changing or leaving for 2027.
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Alameda County in context
Alameda County goes from 37 Medicare Advantage plans to 32 for 2027: 5 fewer plans on the menu, before any plan-by-plan detail.
About 277,800 people in the county have Medicare, and roughly 53% of them are in a Medicare Advantage plan today, offered by 12 organizations.
The plans by name in Alameda County
From the same CMS Landscape files: every Medicare Advantage plan offered in the county, by carrier, with its 2027 status, then the plans not offered for 2027, the plans new to the county and the plans continuing under a new name. No plan is ranked or recommended; your plan's Annual Notice of Change has its own details.
Plan availability
Medicare Advantage plans available in Alameda County for 2026
CMS lists 37 Medicare Advantage plans from 12 carriers there for 2026, shown alphabetically by carrier. This is availability, not a comparison: premiums, benefits, networks and star ratings are not shown. Plan details come from the Medicare Plan Finder at medicare.gov or the plan itself.
| Plan | Type | Drug coverage | Status |
|---|---|---|---|
| Aetna (CVS Health) 5 plans | |||
| Aetna Medicare Eagle (PPO) | PPO | No | Not offered for 2027 |
| Aetna Medicare Enhanced (PPO) | PPO | Yes | Not offered for 2027 |
| Aetna Medicare Signature (HMO) | HMO | Yes | Offered |
| Aetna Medicare Signature (PPO) | PPO | Yes | Not offered for 2027 |
| Aetna Medicare Signature Extra (HMO) | HMO-POS | Yes | Renamed for 2027 |
| Alameda Alliance for Health 1 plan | |||
| Alameda Alliance Wellness (HMO D-SNP) | HMO D-SNP | Yes | Offered |
| Align Senior Care 3 plans | |||
| Advantage Care (HMO) | HMO | Yes | Not offered for 2027 |
| Premier Care (HMO I-SNP) | HMO I-SNP | Yes | Offered |
| Senior Care (HMO I-SNP) | HMO I-SNP | Yes | Offered |
| Alignment Health Plan 9 plans | |||
| Alignment Health BreathEasy Plus 041 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Clarity Plus 042 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Heart & Diabetes 010 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Heart & Diabetes 048 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Heart & Diabetes 051 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Heart & Diabetes Plus 039 (HMO C-SNP) | HMO C-SNP | Yes | Renamed for 2027 |
| Alignment Health Honor+ Plan (HMO) | HMO | Yes | Not offered for 2027 |
| Alignment Health My Choice 050 (HMO) | HMO | Yes | Renamed for 2027 |
| Central Health Harmony 031 (HMO) | HMO | Yes | Renamed for 2027 |
| Blue Shield of California 1 plan | |||
| Blue Shield Inspire (HMO) | HMO | Yes | Offered |
| CCHP (Chinese Community Health Plan) 2 plans | |||
| CCHP Senior Program (HMO) | HMO | Yes | Not offered for 2027 |
| CCHP Senior Value Program (HMO) | HMO | Yes | Offered |
| Central Health Medicare Plan 1 plan | |||
| Central Health Dual Access Plan (HMO D-SNP) | HMO D-SNP | Yes | Not offered for 2027 |
| Elevance Health (Anthem) 2 plans | |||
| Anthem Prime (HMO-POS) | HMO-POS | Yes | Not offered for 2027 |
| Anthem Select (HMO-POS) | HMO-POS | Yes | Not offered for 2027 |
| Imperial Health Plan of California, Inc. 3 plans | |||
| Imperial Courage Plan (HMO) | HMO | No | Offered |
| Imperial Dynamic Plan (HMO) | HMO | Yes | Offered |
| Imperial Senior Value (HMO C-SNP) | HMO C-SNP | Yes | Offered |
| Kaiser Permanente 3 plans | |||
| Kaiser Permanente Dual Complete North P16 (HMO D-SNP) | HMO D-SNP | Yes | Offered |
| Kaiser Permanente Senior Advantage Alam., SF, Napa (HMO) | HMO | Yes | Offered |
| Kaiser Permanente Senior Advantage Basic Alameda (HMO) | HMO | Yes | Offered |
| SCAN Health Plan 5 plans | |||
| SCAN Balance (HMO C-SNP) | HMO C-SNP | Yes | Offered |
| SCAN Classic (HMO) | HMO | Yes | Offered |
| SCAN MyChoice (HMO) | HMO | Yes | Not offered for 2027 |
| SCAN Strive (HMO C-SNP) | HMO C-SNP | Yes | Offered |
| Sutter Senior Advantage, a SCAN Medicare Plan (HMO) | HMO | Yes | Renamed for 2027 |
| UnitedHealthcare 2 plans | |||
| AARP Medicare Advantage from UHC CA-7 (HMO-POS) | HMO-POS | Yes | Offered |
| UHC Complete Care Support CA-8AP (HMO-POS C-SNP) | HMO-POS C-SNP | Yes | Offered |
New for 2027 (not offered for 2026)
| Plan | Carrier | Type | Drug coverage |
|---|---|---|---|
| Aetna Medicare Chronic Care (HMO C-SNP) | Aetna (CVS Health) | HMO C-SNP | Yes |
| Aetna Medicare Eagle (HMO) | Aetna (CVS Health) | HMO | No |
| Alignment Health Honor Plus 060 (HMO) | Alignment Health Plan | HMO | Yes |
| Imperial Flex (HMO C-SNP) | Imperial Health Plan of California, Inc. | HMO C-SNP | Yes |
| SCAN Costco Medicare Advantage (HMO) | SCAN Health Plan | HMO | Yes |
Source: CMS Medicare Advantage Landscape Source File, plan year 2026 and 2027. Plan availability is set at the county level.
Plans not offered in Alameda County for 2027
| Plan | Carrier | Type |
|---|---|---|
| Aetna Medicare Eagle (PPO) | Aetna (CVS Health) | PPO |
| Aetna Medicare Enhanced (PPO) | Aetna (CVS Health) | PPO |
| Aetna Medicare Signature (PPO) | Aetna (CVS Health) | PPO |
| Advantage Care (HMO) | Align Senior Care | HMO |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | HMO |
| CCHP Senior Program (HMO) | CCHP (Chinese Community Health Plan) | HMO |
| Central Health Dual Access Plan (HMO D-SNP) | Central Health Medicare Plan | HMO D-SNP |
| Anthem Prime (HMO-POS) | Elevance Health (Anthem) | HMO-POS |
| Anthem Select (HMO-POS) | Elevance Health (Anthem) | HMO-POS |
| SCAN MyChoice (HMO) | SCAN Health Plan | HMO |
Plans new to Alameda County for 2027
| Plan | Carrier | Type |
|---|---|---|
| Aetna Medicare Chronic Care (HMO C-SNP) | Aetna (CVS Health) | HMO C-SNP |
| Aetna Medicare Eagle (HMO) | Aetna (CVS Health) | HMO |
| Alignment Health Honor Plus 060 (HMO) | Alignment Health Plan | HMO |
| Imperial Flex (HMO C-SNP) | Imperial Health Plan of California, Inc. | HMO C-SNP |
| SCAN Costco Medicare Advantage (HMO) | SCAN Health Plan | HMO |
Plans continuing under a new name
| Plan | Carrier | Type |
|---|---|---|
| Aetna Medicare Signature Extra (HMO) (was Aetna Medicare Signature Extra (HMO-POS)) | Aetna (CVS Health) | HMO-POS |
| Alignment Health BreathEasy Plus 041 (HMO C-SNP) (was Alignment Health BreathEasy (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health Clarity Plus 042 (HMO C-SNP) (was Alignment Health Clarity (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health Heart & Diabetes 010 (HMO C-SNP) (was Alignment Health Heart & Diabetes (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health Heart & Diabetes 048 (HMO C-SNP) (was Alignment Health Heart & Diabetes Care (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health Heart & Diabetes 051 (HMO C-SNP) (was Alignment Health Heart & Diabetes Choice (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health Heart & Diabetes Plus 039 (HMO C-SNP) (was Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)) | Alignment Health Plan | HMO C-SNP |
| Alignment Health My Choice 050 (HMO) (was Alignment Health My Choice CalCare (HMO)) | Alignment Health Plan | HMO |
| Central Health Harmony 031 (HMO) (was Alignment Health Harmony (HMO)) | Alignment Health Plan | HMO |
| Sutter Senior Advantage, a SCAN Medicare Plan (HMO) (was SCAN Compass (HMO)) | SCAN Health Plan | HMO |
Carriers with no plans in Alameda County for 2027: Central Health Medicare Plan, Elevance Health (Anthem)
What to do before December 7
If you are in a Medicare Advantage plan today, your plan must send you an Annual Notice of Change by September 30 that spells out exactly what is different for 2027. Read it before the Annual Enrollment Period (Open Enrollment), which runs October 15 through December 7.
If your plan is leaving your county, you will get a separate notice and a Special Enrollment Period to choose new coverage. If you do nothing, you may be returned to Original Medicare without drug coverage, so it is worth acting during the window.
A licensed agent can check your doctors and prescriptions against the plans that will actually operate in your county next year. For unbiased help, contact Medicare.gov or 1-800-MEDICARE.
Cities in Alameda County
These counts apply to every city in the county, including:
Key dates
Medicare enrollment periods at a glance
- Around your 65thInitial Enrollment PeriodA 7-month window around the month you turn 65 — your first chance to sign up.
- October 15 – December 7Annual Enrollment Period (Open Enrollment)Anyone with Medicare can join, switch, or drop a Medicare Advantage or Part D plan.
- January 1 – March 31Medicare Advantage Open EnrollmentIf you're already in a Medicare Advantage plan, you can make one change.
- January 1 – March 31General Enrollment PeriodFor people who missed their first chance to sign up for Part B.
- VariesSpecial Enrollment PeriodTriggered by life events like moving or losing other coverage.
Dates are set by Medicare and apply nationwide. Confirm your personal windows at Medicare.gov or 1-800-MEDICARE.
Good to know
Frequently asked questions
What does it mean that a plan is “changing” for 2027?
Does a plan leaving my county mean I lose Medicare?
Which plans are leaving or changing?
When can I switch?
- CMS — MA/Part D Landscape & Plan Finder data
For personalized answers, contact Medicare.gov or 1-800-MEDICARE.