Medicare Advantage in Santa Cruz County, CA, for 2027.
CMS lists 9 Medicare Advantage plans here for 2027, 1 more than 2026 (8). 15,119 people in the county had an individual Medicare Advantage plan in October 2026.
Sources: CMS CY2027 plan file (October 2026 release), CMS CY2026 plan file (September 2026 release), CMS enrollment by county (CPSC), October 2026, CMS 2027 Plan Crosswalk (October 1, 2026), CMS 2027 Star Ratings Data Tables (October 8, 2026). Member counts are floors because CMS hides counts of 10 or fewer.
The county in numbers
Plans that end here for 2027
5 plans with members in the county end or leave it, plus 85 with 10 or fewer members here. CMS moves 0 members to another plan, and 9,540 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| Kaiser Permanente Sr Adv Enhanced Santa Clara (HMO) | Kaiser Foundation Health Plan | 56 | Plan leaves this county |
| Aspire Health Value (HMO) | Montage Health | 36 | Plan leaves this county |
| Kaiser Permanente Sr Adv Basic Santa Clara (HMO) | Kaiser Foundation Health Plan | 34 | Plan leaves this county |
| Aspire Health Protect (HMO) | Montage Health | 16 | Plan leaves this county |
| DualConnect (HMO D-SNP) | SANTA CLARA COUNTY HEALTH AUTHORITY | 13 | Plan leaves this county |
Who holds the members
- Kaiser Foundation Health Plan5,930
- Alignment Healthcare USA4,251
- UnitedHealth2,735
- Elevance Health592
- California Physicians' Service544
- SANTA CRUZ MONTEREY MERCED SAN BENITO MARIPOSA MAN393
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- Alignment Health My Choice 001 (PPO)Alignment Healthcare USA4.5
- Kaiser Permanente Dual Complete North P21 (HMO D-SNP)Kaiser Foundation Health Plan4.5
- Kaiser Permanente Senior Advantage Santa Cruz (HMO)Kaiser Foundation Health Plan4.5
2027 overall Star Rating, 4.5 or more. Each plan's measure stars are in the county lookup.
See every plan, premium and copay in the free lookup.
Sort all 9 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open Santa Cruz in the lookupWorking this county for AEP?
The AEP 2027 County Kit puts this county and your others in one file: the plans that end, where members land, what is still sold and a crosswalk sheet, with every number tied to its CMS file.
See the AEP 2027 County KitAll California county pages. Facts from public CMS files, prepared by Health and Tech Now. Not plan advice. Check a plan's Summary of Benefits before you enroll.