Is my Medicare plan ending in Fort Collins, CO?
Medicare plans are set by county. Fort Collins is in Larimer County, so the plans listed as leaving Larimer County for 2027 apply to Fort Collins residents.
Quick answer for Fort Collins
23 Medicare plans are from 7 companies listed in Larimer County for 2026 but not for 2027, covering at least 4,262 people enrolled today. If you live in Fort Collins and have one of these plans, you can choose a new plan from October 15 to December 7, and coverage starts January 1.
Companies with plans leaving Larimer County
| Company | Plans leaving | People enrolled (at least) |
|---|---|---|
| UnitedHealthcare | 3 | 2,324 |
| Intermountain Health Care | 4 | 902 |
| Aetna (CVS Health) | 5 | 777 |
| Humana | 3 | 162 |
| Cigna HealthSpring (HCSC) | 5 | 51 |
| Kaiser Permanente | 1 | 46 |
| Group 1001 | 2 | not listed |
Plans going away in Larimer County
| Plan going away | Company | People enrolled (at least) |
|---|---|---|
| UHC Dual Complete CO-S4 (HMO-POS D-SNP) H0624-006 | UnitedHealthcare | 1,051 |
| AARP Medicare Advantage from UHC CO-0013 (PPO) H2406-104 | UnitedHealthcare | 805 |
| Select Health Medicare Essential (HMO) H1994-027 | Intermountain Health Care | 696 |
| Aetna Medicare Signature (HMO-POS) H3931-153 | Aetna (CVS Health) | 648 |
| AARP Medicare Advantage from UHC CO-0017 (PPO) H2406-110 | UnitedHealthcare | 468 |
| Select Health Medicare + Kroger (HMO) H1994-030 | Intermountain Health Care | 111 |
| HumanaChoice H5216-437 (PPO) H5216-437 | Humana | 101 |
| Aetna Medicare Signature (HMO-POS) H4711-008 | Aetna (CVS Health) | 82 |
| Select Health Medicare Flex (HMO) H1994-031 | Intermountain Health Care | 75 |
| Humana Value Plus H5216-195 (PPO) H5216-195 | Humana | 61 |
| HealthSpring Preferred (HMO) H0672-024 | Cigna HealthSpring (HCSC) | 51 |
| Kaiser Permanente Senior Advantage Choice North (PPO) H3138-003 | Kaiser Permanente | 46 |
| Aetna Medicare Dual Care (HMO D-SNP) H4711-012 | Aetna (CVS Health) | 34 |
| Select Health Medicare Active (HMO) H1994-035 | Intermountain Health Care | 20 |
| Aetna Medicare Eagle (HMO-POS) H4711-010 | Aetna (CVS Health) | 13 |
See all 20 plans leaving Larimer County →
What to do if you live in Fort Collins
- Read the notice from your plan. It names the plan that is ending and your choices.
- Compare 2027 options before December 7: another Medicare Advantage plan, or Original Medicare with a Medicare Supplement and a Part D drug plan.
- Check that your doctors, hospitals and pharmacy near Fort Collins are covered by any plan you consider.
- Free, unbiased help: Colorado State Health Insurance Assistance Program (SHIP) at 303-894-7552, or Medicare.gov, 1-800-MEDICARE.
Is my Medicare plan ending in Fort Collins?
Medicare plans are offered by service area, usually county by county. Check the list above for your plan name or plan ID. A plan can be listed because it was renumbered or replaced, so your plan notice is the final word.
What happens if I do nothing in Fort Collins?
If your plan is not renewing and you do not choose a new one, you may be moved to Original Medicare, which does not include drug coverage. Compare options before December 7 and confirm your dates with Medicare.gov or your plan notice.
Do I have to enroll if I call?
No. Calling is a conversation about your options, and you are never required to enroll.
Fort Collins residents: call 855-367-1095
Call Lander LLC to go over your options. There is no cost to call or to speak with an agent, and you are never required to enroll in anything.
Call 855-367-1095 Open 8 AM-10 PM Eastern timeMore for Fort Collins: Fort Collins health insurance · Larimer County · All Colorado plans ending for 2027 · Fort Collins population 170,376 (Census Bureau).
Source: CMS Medicare Advantage and Part D landscape files for 2026 and 2027, and CMS enrollment data from September 2026.
Reviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.