Is my Medicare plan ending in Rock Springs, WY?
Medicare plans are set by county. Rock Springs is in Sweetwater County, so the plans listed as leaving Sweetwater County for 2027 apply to Rock Springs residents.
Quick answer for Rock Springs
3 Medicare plans are from 2 companies listed in Sweetwater County for 2026 but not for 2027. If you live in Rock Springs 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 Sweetwater County
| Company | Plans leaving | People enrolled (at least) |
|---|---|---|
| Cigna HealthSpring (HCSC) | 2 | not listed |
| Aetna (CVS Health) | 1 | not listed |
What to do if you live in Rock Springs
- 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 Rock Springs are covered by any plan you consider.
- Free, unbiased help: Wyoming WSHIIP (State Health Insurance Information Program) at (800) 856-4398, or Medicare.gov, 1-800-MEDICARE.
Is my Medicare plan ending in Rock Springs?
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 Rock Springs?
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.
Rock Springs 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 Rock Springs: Rock Springs health insurance · Sweetwater County · All Wyoming plans ending for 2027 · Rock Springs population 22,954 (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.