2026 Medicare Advantage Plans in Riverside County, CA
Last update: . Enrollment data updated: June 13, 2026
For 2026, Riverside County, CA includes 56 Medicare Advantage plans. Enrollment across these plans totals approximately 188,281, with 52 $0 premium options and 42% rated 4 stars or higher.
This page and its statistics exclude Medicare Advantage Special Needs Plans (SNPs). Special Needs Plans in Riverside County, CA are summarized separately. Visit Medicare Options in Riverside 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
- 4
- Average Monthly Premium
- $8.50/mo
- Total PPO Enrollment
- 4,331
- $0 Premium PPO Plans
- 3
- Average MOOP
- $5,100
- Top PPO by Enrollment
- HumanaChoice H5525-074 (PPO) — 1,768 enrollees
- PPO Plans Without Drug Coverage
- 1
| PPO Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| Humana USAA Honor Giveback | $0 | $6,750 | N/A | H5525-078-0 | |
| Humana USAA Honor Giveback with Rx | $0 | $6,400 | $615 | H5525-057-0 | |
| HumanaChoice H5525-074 | $34 | $3,400 | $615 | H5525-074-0 | |
| HumanaChoice H5525-075 | $0 | $3,850 | $615 | H5525-075-0 |
What is the average monthly premium for PPO plans in Riverside?
PPO plans in Riverside cost $8.50 per month on average.
Which PPO plan has the highest enrollment in Riverside?
The most popular PPO plan in Riverside is HumanaChoice H5525-074 (PPO), with 1,768 enrollees.
How many PPO plans in Riverside do not include prescription drug coverage?
1 PPO plans in Riverside 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 42
- Average Monthly Premium $1.19/mo
- Total HMO Enrollment 146,470
- $0 Premium HMO Plans 41
- Average MOOP $2,374
- Top HMO by Enrollment Kaiser Permanente Senior Advantage Inland Empire (HMO) — 49,079 enrollees
- HMO Plans Without Drug Coverage 3
What is the top HMO by enrollment in Riverside?
Kaiser Permanente Senior Advantage Inland Empire (HMO) is the top HMO in Riverside, with 49,079 enrollees.
What is the number of HMO plans without Part D coverage in Riverside?
3 HMO plans in Riverside do not include prescription drug coverage.
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
- 10
- Average Monthly Premium
- $2.35/mo
- Total HMO-POS Enrollment
- 37,480
- $0 Premium HMO-POS Plans
- 8
- Average MOOP
- $1,190
- Top HMO-POS by Enrollment
- AARP Medicare Advantage from UHC CA-006P (HMO-POS) — 23,889 enrollees
- HMO-POS Plans Without Drug Coverage
- 1
| Plan Name | Rating* | Premium | MOOP | Rx Ded. | Plan-ID |
|---|---|---|---|---|---|
| AARP Medicare Advantage from UHC CA-0015 | $12 | $800 | $355 | H0543-166-0 | |
| AARP Medicare Advantage from UHC CA-006P | $0 | $800 | $355 | H0543-170-0 | |
| AARP Medicare Advantage from UHC CA-022P | $0 | $800 | $355 | H0543-221-0 | |
| AARP Medicare Advantage Giveback from UHC CA-21 | $0 | $800 | $520 | H0543-238-0 | |
| AARP Medicare Advantage Patriot No Rx CA-MA01 | $0 | $4,900 | N/A | H0543-121-0 | |
| Aetna Medicare Prime | $0 | $299 | $615 | H0523-088-0 | |
| Aetna Medicare Prime Extra | $0 | $299 | $615 | H4982-026-0 | |
| Aetna Medicare Prime Value Plus | $12 | $599 | $615 | H4982-022-0 | |
| Anthem Prime | $0 | $800 | $0 | H4161-002-0 | |
| Anthem Select | $0 | $1,800 | $100 | H0544-066-0 |
What is the typical premium for HMO-POS plans in Riverside?
HMO-POS plans in Riverside cost $2.35 per month on average.
Which HMO-POS plan has the most members in Riverside?
The most popular HMO-POS plan in Riverside is AARP Medicare Advantage from UHC CA-006P (HMO-POS), with 23,889 enrollees.
How many HMO-POS options are offered without prescription drug coverage in Riverside?
There are 1 HMO-POS plans in Riverside without prescription drug coverage.
CMS quality ratings for Medicare Advantage plans in Riverside 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) | 22 | 42% |
| 3 Stars | 30 | 58% |
| Below 3 Stars | 0 | 0% |
| Not Rated | 4 | 7% |
| Average Rating | 3.57 | |
* CMS assigns Medicare Advantage star ratings annually based on plan quality and performance measures.
- CMS.gov, Medicare Advantage Landscape Source Files — Last accessed June 13, 2026
- CMS.gov, Medicare Part C & D Performance Data — Last accessed June 13, 2026
- CMS.gov, Medicare Advantage & Part D Contract and Enrollment Data — Last accessed June 13, 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, "Compare Original Medicare & Medicare Advantage" — 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.