Medicare plans
Jefferson County, MT
12 Medicare Advantage plans and 9 drug-only plans are offered in Jefferson County, MT for 2027. 6 of the Advantage plans have a $0 monthly premium.
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Plans by type
| Type | Plans |
|---|---|
| Advantage | 4 |
| Advantage with drugs | 8 |
| Drug only | 9 |
| All plans | 21 |
3 of these are Special Needs Plans, open only to people who qualify. The 9 drug-only plans are listed for all of Montana.
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Premiums and out-of-pocket limits
| Measure | 2027 |
|---|---|
| Advantage monthly premium | $0 to $169 |
| Advantage plans at $0 | 6 |
| Advantage out-of-pocket maximum (in network) | $5,000 to $9,850 |
| Drug-only monthly premium | $5.30 to $222.90 |
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Star Ratings
| Overall rating | Advantage plans |
|---|---|
| 4 stars | 8 |
| 4.5 stars | 2 |
| Too new to rate | 2 |
10 Advantage plans in Jefferson County, MT have an overall rating of 4 stars or more.
Source: CMS 2027 Medicare Part C and D Star Ratings, as of October 8, 2026. Publisher page
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Change from 2026
Jefferson County, MT has 12 Advantage plans in 2027, the same count as 2026 (12). 2 plans are new to the county and 2 plans offered here in 2026 are gone. $0 plans go from 4 to 6.
| Advantage plans | 2026 | 2027 |
|---|---|---|
| Offered in the county | 12 | 12 |
| At a $0 premium | 4 | 6 |
| New for 2027 | 2 | |
| Offered in 2026, gone in 2027 | 2 |
Offered here in 2026, not in 2027
- Blue Cross Medicare Advantage Classic (PPO) (H0107-003, Health Care Service Corporation)
- Blue Cross Medicare Advantage Optimum (PPO) (H0107-004, Health Care Service Corporation)
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Plans by parent organization
| Parent organization | Advantage | Drug only | Total |
|---|---|---|---|
| BCBS MN, MT, NE, ND, WY, Wellmark IA and SD | 0 | 1 | 1 |
| Centene Corporation | 0 | 2 | 2 |
| Gemstone Holdings, Inc. | 2 | 0 | 2 |
| Health Care Service Corporation | 0 | 1 | 1 |
| Humana Inc. | 10 | 3 | 13 |
| UnitedHealth Group, Inc. | 0 | 2 | 2 |
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Every 2027 plan in Jefferson County, MT
21 plans, by plan name. Select a column to sort.
| Plan ↑ | Type | Premium | Out-of-pocket max | Drug deductible | Stars |
|---|---|---|---|---|---|
| AARP Medicare Rx Preferred from UHC (PDP)S5921-406-0 · UnitedHealth Group, Inc. | Drug onlyPDP | $222.90 | n/a | $300 | 3 |
| AARP Medicare Rx Saver from UHC (PDP)S5921-370-0 · UnitedHealth Group, Inc. | Drug onlyPDP | $10.30 | n/a | $700 | 3 |
| HealthSpring Assurance Rx (PDP)S5715-043-0 · Health Care Service Corporation | Drug onlyPDP | $117.10 | n/a | $700 | 2.5 |
| Humana Basic Rx Plan (PDP)S5884-145-0 · Humana Inc. | Drug onlyPDP | $18.30 | n/a | $700 | 4.5 |
| Humana Dual QMB Only (PPO D-SNP)H7617-037-0 · Humana Inc. | Advantage with drugsPPO D-SNP | $0 | $9,850 | $250 | 4.5 |
| Humana Gold Plus H6622-007 (HMO)H6622-007-0 · Humana Inc. | Advantage with drugsHMO | $21 | $5,850 | $700 | 4 |
| Humana Gold Plus SNP-DE H6622-008 (HMO D-SNP)H6622-008-0 · Humana Inc. | Advantage with drugsHMO D-SNP | $0 | $9,850 | $700 | 4 |
| Humana Premier Rx Plan (PDP)S5884-171-0 · Humana Inc. | Drug onlyPDP | $123 | n/a | $350 | 4.5 |
| Humana USAA Honor Giveback (PPO)H5216-278-3 · Humana Inc. | AdvantagePPO | $0 | $6,750 | n/a | 4 |
| Humana USAA Honor Giveback (PPO)H5216-427-5 · Humana Inc. | AdvantagePPO | $0 | $9,150 | n/a | 4 |
| Humana USAA Honor Giveback (PPO)H5525-031-0 · Humana Inc. | AdvantagePPO | $0 | $6,750 | n/a | 4 |
| Humana Value Rx Plan (PDP)S5884-204-0 · Humana Inc. | Drug onlyPDP | $33.30 | n/a | $687 | 4.5 |
| HumanaChoice H5216-048 (PPO)H5216-048-0 · Humana Inc. | Advantage with drugsPPO | $97 | $7,000 | $700 | 4 |
| HumanaChoice H5216-457 (PPO)H5216-457-2 · Humana Inc. | Advantage with drugsPPO | $28 | $5,000 | $500 | 4 |
| HumanaChoice H5525-054 (PPO)H5525-054-0 · Humana Inc. | Advantage with drugsPPO | $70 | $7,150 | $700 | 4 |
| HumanaChoice SNP-DE H7617-036 (PPO D-SNP)H7617-036-0 · Humana Inc. | Advantage with drugsPPO D-SNP | $0 | $9,850 | $200 | 4.5 |
| MedicareBlue Rx Standard (PDP)S5743-001-0 · BCBS MN, MT, NE, ND, WY, Wellmark IA and SD | Drug onlyPDP | $179.10 | n/a | $700 | 3 |
| True West No Rx 3 (PPO)H8267-003-0 · Gemstone Holdings, Inc. | AdvantagePPO | $149 | $6,750 | n/a | Too new to rate |
| True West Rx 2 (PPO)H8267-002-0 · Gemstone Holdings, Inc. | Advantage with drugsPPO | $169 | $8,000 | $700 | Too new to rate |
| Wellcare Classic (PDP)S4802-089-0 · Centene Corporation | Drug onlyPDP | $16.30 | n/a | $700 | 3 |
| Wellcare Value Script (PDP)S4802-158-0 · Centene Corporation | Drug onlyPDP | $5.30 | n/a | $700 | 3 |
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS 2027 Medicare Part C and D Star Ratings, as of October 8, 2026. Publisher page
For agents, pharmacies, and practices
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Rivvi's county landscape snapshot opens with Jefferson County, MT filled in. Swap in a client's ZIP to get every 2027 plan in their county, counted by type and carrier, with premium and out-of-pocket ranges.
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For pharmacies and practices
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Neighboring counties
- Broadwater County11 Advantage plans, 6 at $0
- Deer Lodge County10 Advantage plans, 6 at $0
- Gallatin County13 Advantage plans, 9 at $0
- Lewis and Clark County16 Advantage plans, 10 at $0
- Madison County9 Advantage plans, 6 at $0
- Powell County10 Advantage plans, 6 at $0
- Silver Bow County11 Advantage plans, 6 at $0
Health data for Jefferson County, MT
About this data
Plans, premiums, out-of-pocket maximums, and drug deductibles come from the CMS CY2027 Medicare Advantage and Part D landscape file. Change from 2026 compares it with the CY2026 landscape. Stars are the 2027 Star Ratings CMS released October 8, 2026: the overall rating for Advantage plans and the Part D summary rating for drug-only plans, which have no overall rating.
Advantage counts include Special Needs Plans, which are open only to people who qualify. Drug-only plans are listed by CMS for a whole state, so every county page shows them. Employer group plans are not in the file. This page lists plans; it does not say which plan fits anyone, and Rivvi does not sell plans.
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Source: CMS 2027 Medicare Part C and D Star Ratings, as of October 8, 2026. Publisher page