Medicare Advantage in Ontario County, NY, for 2027.
CMS lists 29 Medicare Advantage plans here for 2027, 6 fewer than 2026 (35). 21,980 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
6 plans with members in the county end or leave it, plus 33 with 10 or fewer members here. CMS moves 47 members to another plan, and 17,620 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| MVP Medicare WellSelect with Part D (PPO) | MVP Health Care | 216 | Plan terminated |
| Aetna Medicare Enhanced (PPO) | CVS Health | 114 | Plan terminated |
| Aetna Medicare Full Dual (HMO D-SNP) | CVS Health | 55 | Plan terminated |
| Wellcare Advantage Simple (PFFS) | Centene | 16 | Plan terminated |
| HumanaChoice Giveback H5970-030 (PPO) | Humana | 12 | Plan terminated |
| Wellcare Premium Enhanced (PFFS) | Centene | 11 | Plan terminated |
Where CMS moves members
| 2026 plan | 2027 plan | Members |
|---|---|---|
| Wellcare Fidelis Dual Liberty Sync (HMO D-SNP) | Wellcare Fidelis Dual Liberty Sync (HMO D-SNP) | 47 |
| Wellcare Dual Access (HMO D-SNP) | Wellcare Fidelis Dual Liberty Sync (HMO D-SNP) | 10 or fewer |
| Wellcare Simple (HMO-POS) | Wellcare Fidelis Simple (HMO-POS) | 10 or fewer |
Who holds the members
- Lifetime Healthcare15,686
- UnitedHealth2,108
- CVS Health1,757
- Centene1,144
- MVP Health Care1,085
- Elderplan92
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- UHC Dual Complete NY-S001 (PPO D-SNP)UnitedHealth4.5
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 29 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open Ontario 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 New York 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.