Medicare Advantage plans in Dewey, SD, 2027
Dewey, South Dakota has 5 Medicare Advantage plans open to everyone for 2027 (11 in 2026) and 2 special needs plans, according to the CMS landscape files; 2 of the open plans have a $0 premium. 10 plans that served the county in 2026 end or leave it, with 24 members living here in September 2026.
What changes in Dewey for 2027?
| In the county | 2026 | 2027 | Change |
|---|---|---|---|
| Plans open to everyone | 11 | 5 | ▼down 6 |
| Special needs plans | 2 | 2 | no change |
| Plans with a $0 premium | 2 | 2 | no change |
| Plans that lower the Part B premium | 1 | 2 | ▲up 1 |
| Median out-of-pocket limit | $5,900 | $7,150 | ▲up $1,250 |
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 benefit package files, 2027 and 2026.
Which plans can anyone in Dewey join?
| Plan | Premium | Out-of-pocket limit | Part B reduction | 2026 stars |
|---|---|---|---|---|
| Medica Advantage SaluteH8889-009 · PPO | $0 | $4,450 | $160 | 3.5 of 5 |
| AARP Medicare Advantage Patriot No Rx SI-MA2H2001-139 · PPO | $0 | $7,150 | $115 | 4.5 of 5 |
| Medica Advantage EssentialH8889-027 · PPO | $34 | $7,150 | none | 3.5 of 5 |
| Medica Advantage SelectH8889-028 · PPO | $80 | $7,150 | none | 3.5 of 5 |
| Medica Advantage PreferredH8889-029 · PPO | $296 | $4,450 | none | 3.5 of 5 |
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 benefit package files, 2027 and 2026. Stars are the contract's 2026 rating. confirm on Medicare Plan Finder.
Which plans leave Dewey in 2027?
Members of these plans here choose a 2027 plan during open enrollment, October 15 to December 7, 2026; choosing by December 31 means no gap; because their plan is leaving the county, they can still join until the end of February 2027, with coverage from the first of the next month. Each plan's page says what happens to its members.
| 2026 plan | Members here, Sept. 2026 | For 2027 |
|---|---|---|
| Medica Prime Solution CoreH2450-034 | 13 | Leaves the county |
| Medica Prime Solution StandardH2450-044 | 11 | Leaves the county |
| Medica Prime Solution Thrift w/RxH2450-007 | fewer than 11 | Leaves the county |
| Medica Prime Solution ThriftH2450-030 | fewer than 11 | Leaves the county |
| Medica Prime Solution Core w/RxH2450-035 | fewer than 11 | Not offered |
| Medica Prime Solution PremierH2450-036 | fewer than 11 | Leaves the county |
| Medica Prime Solution Premier w/RxH2450-037 | fewer than 11 | Not offered |
| Medica Prime Solution Standard w/RxH2450-049 | fewer than 11 | Leaves the county |
| Blue Medicare Advantage Enhanced PPOH5900-004 | fewer than 11 | Not offered |
| Blue Medicare Advantage Valor PPOH5900-007 | fewer than 11 | Not offered |
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); CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
Which special needs plans are sold here?
Open only to people with Medicaid as well as Medicare, with certain chronic conditions, or living in an institution.
| Plan | Who can join | Premium |
|---|---|---|
| UHC Dual Complete SD-Q1H2001-046 | Dual-Eligible | $24.60 |
| UHC Dual Complete SD-S2H2001-077 | Dual-Eligible | $24.60 |
Source: CMS Medicare Advantage and Part D landscape files for 2027 (Sept. 22, 2026, revised Sept. 30) and 2026 (Sept. 2, 2026 revision).
How many people in Dewey use Medicare Advantage?
95 of the county's 886 people with Medicare were in a Medicare Advantage plan in September 2026, 10.7%; in South Dakota as a whole the share is 35.1%.
Source: CMS Medicare Advantage state and county penetration, September 2026.
What else should you check?
- Medicare Advantage in South DakotaEvery county of the state
- 9 stand-alone drug plans in South DakotaIf you keep Original Medicare
- Is your plan ending?Every plan not offered in 2027