Medicare Advantage in St. Mary's County, MD, for 2027.
CMS lists 8 Medicare Advantage plans here for 2027, 4 fewer than 2026 (12). 3,369 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 29 with 10 or fewer members here. CMS moves 0 members to another plan, and 1,369 stay in the same plan.
| Plan | Insurer | Members | Why |
|---|---|---|---|
| CareFirst BlueCross BlueShield Advantage Essential (PPO) | CareFirst | 561 | Plan leaves this county |
| CareFirst BlueCross BlueShield Advantage Complete (PPO) | CareFirst | 190 | Plan leaves this county |
| HumanaChoice SNP-DE H5216-459 (PPO D-SNP) | Humana | 116 | Plan terminated |
| HumanaChoice SNP-DE H5216-377 (PPO D-SNP) | Humana | 72 | Plan terminated |
| Humana USAA Honor Giveback (PPO) | Humana | 24 | Plan leaves this county |
Who holds the members
- Humana1,306
- CareFirst1,296
- UnitedHealth524
- CVS Health231
- Elevance Health12
Individual Medicare Advantage members by parent company, October 2026.
Top rated plans sold here
- HumanaChoice H7617-044 (PPO)Humana4.5
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 8 plans, open each plan's benefits and star measures, and see what each insurer paid agents in 2026.
Open St. Mary's 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 Maryland 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.