Medicare contract · plan years 2026 and 2027CMS landscape and crosswalk
Aetna Health of California Inc. (H0523)
H0523Contract
A company of CVS Health Corporation, sold as Aetna Medicare
18 plans in 2027 (13 in 2026) · 9,640 members in September 2026
Aetna Health of California Inc. is the CVS Health Corporation company that holds Medicare contract H0523, sold as Aetna Medicare. In 2027 it offers 18 plans (13 in 2026); 1 of its 2026 plans is not offered in 2027. 9,640 people were in its plans in September 2026.
What plans does H0523 offer for 2027?
| Plan | Type | Monthly premium | Out-of-pocket limit | Area | For 2027 |
|---|---|---|---|---|---|
| Aetna Medicare Signature LegacyH0523-022 | HMO | $10 | $2,000 | 6 counties | renews |
| Aetna Medicare SignatureH0523-065 | HMO | $0 | $2,000 | 3 counties | renews |
| Aetna Medicare Signature ExtraH0523-070 | HMO | $0 | $3,600 | 3 counties | renews |
| Aetna Medicare PrimeH0523-073 | HMO | $0 | $599 | 1 county | renews |
| Aetna Medicare Value PlusH0523-074 | HMO | $0 | $2,000 | 3 counties | renews |
| Aetna Medicare PrimeH0523-075 | HMO | $0 | $3,000 | 1 county | renews |
| Aetna Medicare SignatureH0523-083 | HMO | $102 | $3,900 | 1 county | renews |
| Aetna Medicare PrimeH0523-085 | HMO | $0 | $299 | 1 county | renews |
| Aetna Medicare Signature ExtraH0523-086 | HMO | $0 | $599 | 2 counties | renews |
| Aetna Medicare PrimeH0523-088 | HMO | $0 | $299 | 2 counties | renews |
| Aetna Medicare Signature ExtraH0523-089 | HMO | $0 | $599 | 2 counties | renews |
| Aetna Medicare Signature ExtraH0523-091 | HMO | $0 | $2,000 | 1 county | renews |
| Aetna Medicare Chronic CareH0523-094 | HMO C-SNP | $0 | $2,000 | 2 counties | new plan |
| Aetna Medicare Chronic CareH0523-095 | HMO C-SNP | $0 | $3,600 | 2 counties | new plan |
| Aetna Medicare Chronic CareH0523-096 | HMO C-SNP | $0 | $299 | 2 counties | new plan |
| Aetna Medicare Chronic CareH0523-097 | HMO C-SNP | $0 | $299 | 2 counties | new plan |
| Aetna Medicare Chronic CareH0523-098 | HMO C-SNP | $0 | $1,500 | 1 county | new plan |
| Aetna Medicare EagleH0523-099 | HMO | $0 | $4,450 | 9 counties | new plan |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
Which of its plans end?
| 2026 plan | Members, Sept. 2026 | Counties in 2026 |
|---|---|---|
| Aetna Medicare Signature ExtraH0523-092 | 17 | 1 |
Source: CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026); CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11).
Which employer and union group plans does it hold?
H0523 also holds 2 group plans offered through former employers and unions, with 1,560 members in September 2026 (plans with fewer than 11 not counted). They are not sold to individuals, so the landscape files list no premiums or benefits for them; the employer or union sends their 2027 terms.
| Plan ID | Plan name | Members, Sept. 2026 | 2027 |
|---|---|---|---|
| H0523-801 | Aetna Medicare Plan | 1,401 | renews |
| H0523-805 | Aetna Medicare Plan w/Rx | 159 | renews |
Source: CMS monthly enrollment by plan and by county, September 2026 (CMS hides counts under 11); CMS plan crosswalk from 2026 to 2027 (Oct. 1, 2026).
How did CMS rate it for 2026?
The overall rating is 3 of 5 (health plan 3 of 5, drug plan 3.5 of 5). Of its 40 rated measures, the lowest and the highest:
| Lowest-rated measures | Stars |
|---|---|
| Improving Bladder Control | 1 |
| Getting Needed Care | 1 |
| Customer Service | 1 |
| Rating of Health Plan | 1 |
| Highest-rated measures | Stars |
|---|---|
| MTM Program Completion Rate for CMR | 5 |
| MPF Price Accuracy | 5 |
| Call Center – Foreign Language Interpreter and TTY Availability | 5 |
| Statin Use in Persons with Diabetes (SUPD) | 4 |
Source: CMS Part C and D Star Ratings data tables, 2026 (October 2025).
What else should you check?
- All Aetna Medicare plansEvery contract of the brand
- Star ratings of every contractThe 2026 ratings, and 2027 when CMS publishes them
- Find a plan by its IDFrom the card or a letter