Is my Medicare plan ending in Yankton, SD?
Medicare plans are set by county. Yankton is in Yankton County, so the plans listed as leaving Yankton County for 2027 apply to Yankton residents.
Quick answer for Yankton
7 Medicare plans are from 4 companies listed in Yankton County for 2026 but not for 2027, covering at least 273 people enrolled today. If you live in Yankton 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 Yankton County
| Company | Plans leaving | People enrolled (at least) |
|---|---|---|
| Blue Cross Blue Shield of Michigan Mutual Ins. | 2 | 253 |
| Medica Holding Company | 2 | 20 |
| Cigna HealthSpring (HCSC) | 2 | not listed |
| Aetna (CVS Health) | 1 | not listed |
Plans going away in Yankton County
| Plan going away | Company | People enrolled (at least) |
|---|---|---|
| Blue Medicare Advantage Enhanced PPO (PPO) H5900-004 | Blue Cross Blue Shield of Michigan Mutual Ins. | 239 |
| Medica Prime Solution Core w/Rx (Cost) H2450-035 | Medica Holding Company | 20 |
| Blue Medicare Advantage Valor PPO (PPO) H5900-007 | Blue Cross Blue Shield of Michigan Mutual Ins. | 14 |
| Medica Prime Solution Premier w/Rx (Cost) H2450-037 | Medica Holding Company | 10 or fewer |
What to do if you live in Yankton
- 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 Yankton are covered by any plan you consider.
- Free, unbiased help: South Dakota SHIINE (Senior Health Information and Insurance Education) at (800) 536-8197, or Medicare.gov, 1-800-MEDICARE.
Is my Medicare plan ending in Yankton?
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 Yankton?
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.
Yankton 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 Yankton: Yankton health insurance · Yankton County · All South Dakota plans ending for 2027 · Yankton population 15,630 (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.