Medicare Advantage plans in Jefferson, OR, 2027
Jefferson, Oregon has 3 Medicare Advantage plans open to everyone for 2027 (5 in 2026) and 1 special needs plan, according to the CMS landscape files; 1 of the open plans have a $0 premium. 3 plans that served the county in 2026 end or leave it, with 1,775 members living here in September 2026.
What changes in Jefferson for 2027?
| In the county | 2026 | 2027 | Change |
|---|---|---|---|
| Plans open to everyone | 5 | 3 | ▼down 2 |
| Special needs plans | 1 | 1 | no change |
| Plans with a $0 premium | 1 | 1 | no change |
| Plans that lower the Part B premium | 0 | 0 | no change |
| Median out-of-pocket limit | $5,950 | $7,150 | ▲up $1,200 |
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 Jefferson join?
| Plan | Premium | Out-of-pocket limit | Part B reduction | 2026 stars |
|---|---|---|---|---|
| PacificSource Medicare Oregon BasicH3864-002 · HMO-POS | $0 | $6,250 | none | 3.5 of 5 |
| PacificSource Medicare Cascade Classic RxH3864-046 · HMO-POS | $98 | $9,850 | none | 3.5 of 5 |
| PacificSource Medicare Cascade Premier RxH3864-006 · HMO-POS | $198 | $7,150 | 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 Jefferson 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 |
|---|---|---|
| PacificSource Medicare Essentials Choice Rx 36H3864-036 | 1,417 | Leaves the county |
| PacificSource Medicare Essentials Choice Rx 14H3864-014 | 298 | Not offered |
| PacificSource Medicare Essentials Rx 27H3864-027 | 60 | 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 |
|---|---|---|
| PacificSource Oregon Dual RxH3864-043 | Dual-Eligible | $0 |
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 Jefferson use Medicare Advantage?
2,606 of the county's 6,208 people with Medicare were in a Medicare Advantage plan in September 2026, 42.0%; in Oregon as a whole the share is 53.8%.
Source: CMS Medicare Advantage state and county penetration, September 2026.
What else should you check?
- Medicare Advantage in OregonEvery county of the state
- 8 stand-alone drug plans in OregonIf you keep Original Medicare
- Is your plan ending?Every plan not offered in 2027