2026 Medicare Advantage Plans in Alameda County, CA
Last update: . Enrollment data updated: May 2, 2026
For 2026, Alameda County, CA includes 22 Medicare Advantage plans. Enrollment across these plans totals approximately 83,839, with 15 $0 premium options and 62% rated 4 stars or higher.
Totals on this page exclude Medicare Advantage Special Needs Plans (SNPs). SNP plans for Alameda County, CA are provided separately. Or you can discover all Medicare Options in Alameda County, CA.
Medicare Advantage PPO Plans
Preferred Provider Organization (PPO) plans allow members to choose care from both in-network and out-of-network providers. Out-of-network care usually costs more, but PPOs offer greater flexibility in how members access care.
- Total PPO Plans
- 3
- Average Monthly Premium
- $21.00/mo
- Total PPO Enrollment
- 5,079
- $0 Premium PPO Plans
- 2
- Average MOOP
- $6,467
- Top PPO by Enrollment
- Aetna Medicare Signature (PPO) — 3,467 enrollees
- PPO Plans Without Drug Coverage
- 1
| PPO Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| Aetna Medicare Eagle | $0 | $6,750 | N/A | H5521-369-0 | |
| Aetna Medicare Enhanced | $63 | $5,900 | $615 | H5521-581-0 | |
| Aetna Medicare Signature | $0 | $6,750 | $615 | H5521-425-0 |
What is the typical premium for PPO plans available in Alameda?
PPO plans in Alameda cost $21.00 per month on average.
Which PPO plan do most beneficiaries choose in Alameda?
The most popular PPO plan in Alameda is Aetna Medicare Signature (PPO), with 3,467 enrollees.
How many PPO options are offered without drug coverage in Alameda?
1 PPO plans in Alameda do not include prescription drug coverage.
Medicare Advantage HMO Plans
Health Maintenance Organization (HMO) plans generally require members to use in-network doctors, hospitals, and other providers, except in emergencies. Because of this structure, HMOs often have lower premiums and out-of-pocket costs than other plan types.
- Total HMO Plans 15
- Average Monthly Premium $16.80/mo
- Total HMO Enrollment 73,875
- $0 Premium HMO Plans 10
- Average MOOP $3,610
- Top HMO by Enrollment Kaiser Permanente Senior Advantage Alam., SF, Napa (HMO) — 41,354 enrollees
- HMO Plans Without Drug Coverage 1
| Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| Kaiser Permanente Senior Advantage Alam., SF, Napa | $99 | $3,900 | $0 | H0524-032-0 | |
| Kaiser Permanente Senior Advantage Basic Alameda | $19 | $6,000 | $0 | H0524-059-0 | |
| Alignment Health Harmony | $0 | $3,400 | $0 | H3815-031-0 | |
| Alignment Health Honor+ Plan | $0 | $9,250 | $615 | H3815-052-0 | |
| Alignment Health My Choice CalCare | $0 | $3,499 | $0 | H3815-050-0 | |
| Blue Shield Inspire | $56 | $4,500 | $425 | H0504-041-0 | |
| SCAN Classic | $0 | $1,500 | $250 | H5425-075-0 | |
| SCAN Compass | $49 | $4,500 | $250 | H5425-124-0 | |
| SCAN MyChoice | $0 | $1,999 | $250 | H5425-110-0 | |
| Imperial Courage Plan | $0 | $2,999 | N/A | H5496-016-0 | |
| Imperial Dynamic Plan | $0 | $296 | $0 | H5496-012-0 | |
| Aetna Medicare Signature | $0 | $3,900 | $615 | H4982-007-0 | |
| CCHP Senior Program | $29 | $3,000 | $0 | H0571-010-0 | |
| CCHP Senior Value Program | $0 | $3,500 | $0 | H0571-011-0 | |
| Advantage Care | $0 | $1,900 | $0 | H3274-005-0 |
What is the total number of HMO plans offered in Alameda?
In 2026, Alameda County has 15 HMO plans with 73,875 enrollees.
How much do HMO plans cost in Alameda?
The typical HMO premium in Alameda is $16.80, and 10 plans have no monthly premium.
Medicare Advantage HMO-POS Plans
HMO-POS plans are structured like HMOs, requiring in-network care for the lowest costs, while allowing limited out-of-network access at higher cost. This provides added flexibility compared with standard HMO plans.
- Total HMO-POS Plans
- 4
- Average Monthly Premium
- $17.50/mo
- Total HMO-POS Enrollment
- 4,885
- $0 Premium HMO-POS Plans
- 3
- Average MOOP
- $4,563
- Top HMO-POS by Enrollment
- Aetna Medicare Signature Extra (HMO-POS) — 1,844 enrollees
- HMO-POS Plans Without Drug Coverage
- 0
| Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| AARP Medicare Advantage from UHC CA-7 | $70 | $5,900 | $440 | H0543-188-0 | |
| Aetna Medicare Signature Extra | $0 | $3,600 | $300 | H0523-070-0 | |
| Anthem Prime | $0 | $1,200 | $110 | H4161-005-0 | |
| Anthem Select | $0 | $7,550 | $0 | H0544-098-0 |
- What is the average monthly premium for HMO-POS plans?
- HMO-POS plans in Alameda cost $17.50 per month on average.
- Which HMO-POS plan is most popular in Alameda?
- The most popular HMO-POS plan in Alameda is Aetna Medicare Signature Extra (HMO-POS), with 1,844 enrollees.
- How many HMO-POS plans in Alameda do not include drug coverage?
- There are 0 HMO-POS plans in Alameda without prescription drug coverage.
CMS quality ratings for Medicare Advantage plans in Alameda County, CA (2026) are summarized below.
| Rating Category | Number of Plans | Percent of Plans |
|---|---|---|
| 5 Stars | No 5-star plans available. | 0% |
| 4 Stars (includes 5 Stars) | 13 | 62% |
| 3 Stars | 8 | 38% |
| Below 3 Stars | 0 | 0% |
| Not Rated | 1 | 5% |
| Average Rating | 3.79 | |
* Star ratings are based on CMS quality measures and reflect plan performance for the 2026 rating period.
- CMS.gov, Medicare Advantage Landscape Source Files — Last accessed May 2, 2026
- CMS.gov, Medicare Part C & D Performance Data — Last accessed May 2, 2026
- CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Last accessed May 2, 2026
All plan counts, enrollment totals, averages, and percentage distributions are calculated at the county level using CMS data and include standard Medicare Advantage (MA/MAPD) plans only, based on a consistent aggregation methodology.
Data sources and methodology documentation .
- Medicare.gov, "Understanding Medicare Advantage Plans" — Last accessed 25 May, 2025
- Medicare.gov, "Explore your Medicare coverage options" — Last accessed 25 May, 2025
- NCOA.org, "5 Steps to Choosing the Right Medicare Plan for You" — Last accessed 25 May, 2025
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Data provenance is documented in accordance with the U.S. Core Data for Interoperability (USCDI) Provenance standard .
Page content independently curated and maintained by David W. Bynon, Editorial Steward, using a standardized, data-driven methodology for accurate, non-commercial Medicare plan interpretation and resolution.