Medicare Advantage in San Francisco County, CA, for 2027.
CMS lists 46 Medicare Advantage plans here for 2027, 5 fewer than 2026 (51). 81,554 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
11 plans with members in the county end or leave it, plus 101 with 10 or fewer members here. CMS moves 163 members to another plan, and 55,983 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| Aetna Medicare Signature (PPO) | CVS Health | 727 | Plan terminated |
| Central Health Classic Care Plan IV (HMO) | Molina Healthcare | 337 | Plan terminated |
| CareAdvantage (HMO D-SNP) | Health Plan of San Mateo | 269 | Plan leaves this county |
| Aetna Medicare Enhanced (PPO) | CVS Health | 185 | Plan terminated |
| Aetna Medicare Eagle (PPO) | CVS Health | 83 | Plan terminated |
| Central Health Embrace Care Plan (HMO C-SNP) | Molina Healthcare | 75 | Plan terminated |
| Kaiser Permanente Sr Adv Enhanced Marin San Mateo (HMO) | Kaiser Foundation Health Plan | 50 | Plan leaves this county |
| Central Health Dual Access Plan (HMO D-SNP) | Molina Healthcare | 40 | Plan terminated |
| Central Health Embrace Choice Plan (HMO C-SNP) | Molina Healthcare | 39 | Plan terminated |
| Kaiser Permanente Dual Complete North P2 (HMO D-SNP) | Kaiser Foundation Health Plan | 25 | Plan leaves this county |
Where CMS moves members
| 2026 plan | 2027 plan | Members |
|---|---|---|
| Alignment Health Honor+ Plan (HMO) | Central Health Harmony 031 (HMO) | 68 |
| SCAN MyChoice (HMO) | SCAN Classic (HMO) | 54 |
| SCAN Affirm partnered with Included LGBTQ+ Health (HMO) | SCAN Classic (HMO) | 41 |
Who holds the members
- Kaiser Foundation Health Plan36,699
- Elevance Health12,957
- California Physicians' Service6,663
- SCAN Group5,932
- Chinese Hospital Association5,007
- UnitedHealth4,372
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- Kaiser Permanente Dual Complete North P19 (HMO D-SNP)Kaiser Foundation Health Plan4.5
- Kaiser Permanente Senior Advantage Alam., SF, Napa (HMO)Kaiser Foundation Health Plan4.5
- Kaiser Permanente Senior Advantage Basic SF (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 46 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open San Francisco 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.