- Entity
- county:california-contra-costa-06013
- Digest
- 2027-county-ma-aggregate
- Population Scope
- Standard Medicare Advantage plans only; Special Needs Plans (SNPs) excluded
- Source URL
- https://www.medicareplans.com/medicare-advantage/california/contra-costa/
- Glossary Scope
- cms_landscape
- Fragment Scope
- semantic-digest
- Method
- https://webmem.com/protocol/serialization/html/
- fragment-county-plan-index
- Total Standard Medicare Advantage Plans
- 5
- PPO Plans
- 1
- HMO Plans
- 4
- HMO-POS Plans
- 0
- PFFS Plans
- 0
- Average Monthly Premium
- 44
- Average MOOP
- 3988.8
- Average Part D Deductible
- 175
- $0 Premium Plans
- 2
- Plans Without Part D Coverage
- 1
- Average CMS Star Rating
- 0
- $0 Premium Plan Share
- 40
- 5-Star Plan Share
- 0
- 4+ Star Plan Share
- 0
- 3-Star Plan Share
- 0
- Below 3-Star Plan Share
- 0
- Not-Rated Plan Share
- 0
- PPO Average Monthly Premium
- 93
- PPO Average MOOP
- 6750
- PPO Enrollment
- 8642
- PPO $0 Premium Plans
- 0
- PPO Plans Without Part D Coverage
- 0
- HMO Average Monthly Premium
- 31.75
- HMO Average MOOP
- 3298.5
- HMO Enrollment
- 55969
- HMO $0 Premium Plans
- 2
- HMO Plans Without Part D Coverage
- 1
- Entity
- county:california-contra-costa-06013
- Digest
- 2027-county-ma-aggregate
- Population Scope
- Standard Medicare Advantage plans only; Special Needs Plans (SNPs) excluded
- Source URL
- https://www.medicareplans.com/medicare-advantage/california/contra-costa/
- Glossary Scope
- cms_landscape
- Fragment Scope
- semantic-digest
- Method
- https://webmem.com/protocol/serialization/html/
- fragment-california-contra-costa-06013-landscape-stats
- Plans Indexed
- 5
- Standard Medicare Advantage Plans
-
-
HumanaChoice H5525-084
H5525-084-0 -
Imperial Courage Plan
H5496-016-0 -
Imperial Dynamic Plan
H5496-012-0 -
Kaiser Permanente Sr Adv Basic Contra Costa
H0524-061-0 -
Kaiser Permanente Sr Adv Enhanced Contra Costa
H0524-033-0
-
HumanaChoice H5525-084
- Total Standard Medicare Advantage Enrollment
- 64611
2027 Medicare Advantage Plans in Contra Costa County, CA
Last update: .
For 2027, Contra Costa County, CA includes 5 Medicare Advantage plans. Enrollment across these plans totals approximately 64,611, with 2 $0 premium options and (2027 Star Ratings Coming Soon) rated 4 stars or higher.
This page and its statistics exclude Medicare Advantage Special Needs Plans (SNPs). Special Needs Plans in Contra Costa County, CA are summarized separately. Visit Medicare Options in Contra Costa County, CA to see more options.
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
- 1
- Average Monthly Premium
- $93.00/mo
- Total PPO Enrollment
- 8,642
- $0 Premium PPO Plans
- 0
- Average MOOP
- $6,750
- Top PPO by Enrollment
- HumanaChoice H5525-084 (PPO) — 8,642 enrollees
- PPO Plans Without Drug Coverage
- 0
| Plan Name | CMS Stars* | Premium/Mo | MOOP | Rx Ded. | CMS ID |
|---|---|---|---|---|---|
| HumanaChoice H5525-084 | $93 | $6,750 | $700 | H5525-084-0 |
- What is the average monthly premium for PPO plans in Contra Costa?
- PPO plans in Contra Costa cost $93.00 per month on average.
- Which PPO plan has the highest enrollment in Contra Costa?
- The most popular PPO plan in Contra Costa is HumanaChoice H5525-084 (PPO), with 8,642 enrollees.
- How many PPO plans in Contra Costa do not include prescription drug coverage?
- 0 PPO plans in Contra Costa do not include prescription drug coverage.
Medicare Advantage HMO Plans
Health Maintenance Organization (HMO) plans are built around a defined network of doctors and hospitals. Care is generally covered only within the network, except in emergencies, but this structure often results in lower premiums and out-of-pocket costs.
| Plan Name | CMS Stars* | Premium/Mo | MOOP | Rx Ded. | CMS ID |
|---|---|---|---|---|---|
| Imperial Courage Plan | $0 | $2,999 | N/A | H5496-016-0 | |
| Imperial Dynamic Plan | $0 | $295 | $0 | H5496-012-0 | |
| Kaiser Permanente Sr Adv Basic Contra Costa | $29 | $6,000 | $0 | H0524-061-0 | |
| Kaiser Permanente Sr Adv Enhanced Contra Costa | $98 | $3,900 | $0 | H0524-033-0 |
What is the total number of HMO plans offered in Contra Costa?
There are 4 HMO plans in 2027, covering 55,969 enrollees.
How much do HMO plans cost in Contra Costa?
The average HMO premium in Contra Costa is $31.75 per month, with 2 plans offering $0 premiums.
What is the top HMO by enrollment in Contra Costa?
Kaiser Permanente Sr Adv Enhanced Contra Costa (HMO) is the top HMO in Contra Costa, with 35,172 enrollees.
What is the number of HMO plans without Part D coverage in Contra Costa?
1 HMO plans in Contra Costa do not include prescription drug coverage.
CMS quality ratings for Medicare Advantage plans in Contra Costa County, CA (2027) are summarized below.
| Rating Category | Number of Plans | Percent of Plans |
|---|---|---|
| 5 Stars | (2027 Star Ratings Coming Soon) | (2027 Star Ratings Coming Soon) |
| 4 Stars (includes 5 Stars) | (2027 Star Ratings Coming Soon) | (2027 Star Ratings Coming Soon) |
| 3 Stars | (2027 Star Ratings Coming Soon) | (2027 Star Ratings Coming Soon) |
| Below 3 Stars | (2027 Star Ratings Coming Soon) | (2027 Star Ratings Coming Soon) |
| Not Rated | (2027 Star Ratings Coming Soon) | (2027 Star Ratings Coming Soon) |
| Average Rating | (2027 Star Ratings Coming Soon) | |
* CMS assigns Medicare Advantage star ratings annually based on plan quality and performance measures.
| Data Source | Publisher | CMS Version |
|---|---|---|
| Landscape Source Files | Centers for Medicare & Medicaid Services | CY2027 Landscape (202609.1) |
| Medicare Part C & D Performance | Centers for Medicare & Medicaid Services | 2027 Star Ratings Data Tables |
| Plan Benefits Package | Centers for Medicare & Medicaid Services | PBP Benefits-2027 |
| Monthly Enrollment by Contract/Plan/State/County | Centers for Medicare & Medicaid Services | 2026-09 |
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.
| Publisher | Reference | Last Accessed |
|---|---|---|
| Medicare.gov | Understanding Medicare Advantage Plans | 25 May, 2025 |
| Medicare.gov | Compare Original Medicare & Medicare Advantage | 25 May, 2025 |
| NCOA.org | 5 Steps to Choosing the Right Medicare Plan for You | 25 May, 2025 |
MedicarePlans.com is an independent informational resource and has no affiliation with, or endorsement from, the U.S. Government or the federal Medicare program.
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.