Medicare plan changes in Colorado for 2027
Across 64 counties in Colorado, the 2027 CMS file lists 553 county listings of Medicare Advantage plans with drug coverage, compared with 800 in 2026. By our count, 12 counties have none in 2027, including counties that do not appear in the CMS file at all.
Before you choose a plan
Compare plans for your ZIP code, drugs and doctors on the official Medicare Plan Finder, or call 1-800-MEDICARE (1-800-633-4227). Free, unbiased counselling is available from your State Health Insurance Assistance Program at shiphelp.org.
By county
| County | 2026 plans | 2027 plans | Change | Companies leaving |
|---|---|---|---|---|
| Adams County | 36 | 31 | -5 | Group 1001 |
| Alamosa County | 5 | 0 | -5 | Humana Inc. |
| Arapahoe County | 33 | 28 | -5 | Group 1001 |
| Archuleta County | 8 | 2 | -6 | CVS Health Corporation |
| Baca County | 0 | 0 | +0 | None |
| Bent County | 7 | 6 | -1 | None |
| Boulder County | 35 | 28 | -7 | Group 1001 |
| Broomfield County | 34 | 27 | -7 | Group 1001 |
| Chaffee County | 6 | 4 | -2 | Humana Inc. |
| Cheyenne County | 0 | 0 | +0 | None |
| Clear Creek County | 30 | 15 | -15 | CVS Health Corporation, Group 1001, UnitedHealth Group, Inc. |
| Conejos County | 11 | 8 | -3 | CVS Health Corporation |
| Costilla County | 8 | 7 | -1 | None |
| Crowley County | 13 | 7 | -6 | CVS Health Corporation, Group 1001 |
| Custer County | 12 | 6 | -6 | CVS Health Corporation, Group 1001 |
| Delta County | 15 | 7 | -8 | None |
| Denver County | 36 | 30 | -6 | Group 1001 |
| Dolores County | 4 | 2 | -2 | None |
| Douglas County | 35 | 27 | -8 | Group 1001 |
| Eagle County | 2 | 0 | -2 | UnitedHealth Group, Inc. |
| El Paso County | 26 | 20 | -6 | Group 1001 |
| Elbert County | 26 | 13 | -13 | CVS Health Corporation, Group 1001, UnitedHealth Group, Inc. |
| Fremont County | 23 | 19 | -4 | Group 1001 |
| Garfield County | 0 | 0 | +0 | None |
| Gilpin County | 24 | 12 | -12 | CVS Health Corporation, Group 1001, UnitedHealth Group, Inc. |
| Grand County | 14 | 8 | -6 | Group 1001, UnitedHealth Group, Inc. |
| Gunnison County | 6 | 7 | +1 | None |
| Hinsdale County | 6 | 7 | +1 | None |
| Huerfano County | 12 | 6 | -6 | CVS Health Corporation, Group 1001 |
| Jackson County | 12 | 6 | -6 | CVS Health Corporation, Group 1001 |
| Jefferson County | 37 | 32 | -5 | Group 1001 |
| Kiowa County | 0 | 5 | +5 | None |
| Kit Carson County | 0 | 0 | +0 | None |
| La Plata County | 8 | 5 | -3 | None |
| Lake County | 5 | 6 | +1 | UnitedHealth Group, Inc. |
| Larimer County | 27 | 19 | -8 | Group 1001 |
| Las Animas County | 10 | 4 | -6 | CVS Health Corporation, Humana Inc. |
| Lincoln County | 11 | 6 | -5 | CVS Health Corporation |
| Logan County | 7 | 3 | -4 | UnitedHealth Group, Inc. |
| Mesa County | 16 | 10 | -6 | None |
| Mineral County | 6 | 7 | +1 | None |
| Moffat County | 0 | 0 | +0 | None |
| Montezuma County | 4 | 2 | -2 | None |
| Montrose County | 8 | 5 | -3 | None |
| Morgan County | 12 | 3 | -9 | CVS Health Corporation, Group 1001, UnitedHealth Group, Inc. |
| Otero County | 5 | 3 | -2 | None |
| Ouray County | 6 | 7 | +1 | None |
| Park County | 22 | 12 | -10 | CVS Health Corporation, Group 1001 |
| Phillips County | 2 | 0 | -2 | UnitedHealth Group, Inc. |
| Pitkin County | 2 | 5 | +3 | None |
| Prowers County | 0 | 0 | +0 | None |
| Pueblo County | 26 | 18 | -8 | Group 1001 |
| Rio Blanco County | 4 | 2 | -2 | None |
| Rio Grande County | 3 | 0 | -3 | Humana Inc. |
| Routt County | 1 | 1 | +0 | None |
| Saguache County | 10 | 6 | -4 | CVS Health Corporation |
| San Juan County | 6 | 7 | +1 | None |
| San Miguel County | 4 | 2 | -2 | None |
| Sedgwick County | 0 | 0 | +0 | None |
| Summit County | 6 | 7 | +1 | UnitedHealth Group, Inc. |
| Teller County | 27 | 17 | -10 | CVS Health Corporation, Group 1001 |
| Washington County | 14 | 6 | -8 | CVS Health Corporation, Group 1001, UnitedHealth Group, Inc. |
| Weld County | 30 | 20 | -10 | Group 1001 |
| Yuma County | 2 | 0 | -2 | UnitedHealth Group, Inc. |
Stand-alone Part D drug plans in Colorado for 2027
8 plans in 2027, compared with 10 in 2026. Lowest monthly drug plan premium: $5.30 (2026: $0).
| Plan | Company | Monthly premium | Deductible | Star rating |
|---|---|---|---|---|
| Wellcare Value Script (PDP) | Wellcare | $5.30 | $700 | Not Applicable |
| Wellcare Classic (PDP) | Wellcare | $7.30 | $700 | Not Applicable |
| Humana Basic Rx Plan (PDP) | Humana | $11.30 | $700 | Not Applicable |
| Humana Value Rx Plan (PDP) | Humana | $102.30 | $687 | Not Applicable |
| HealthSpring Assurance Rx (PDP) | HealthSpring | $126.50 | $700 | Not Applicable |
| Humana Premier Rx Plan (PDP) | Humana | $156.40 | $350 | Not Applicable |
| AARP Medicare Rx Saver from UHC (PDP) | UnitedHealthcare | $211.70 | $700 | Not Applicable |
| AARP Medicare Rx Preferred from UHC (PDP) | UnitedHealthcare | $260.20 | $300 | Not Applicable |
Sources
- Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
- Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
- US Census Bureau, 2024 Gazetteer Files, counties
Checked 29 October 2026. Plans and premiums can change before 1 January 2027. Confirm any plan on Medicare.gov before you enrol.