Medicare in NW Iowa · Sioux County, IA
2026 Medicare Advantage Plans in Sioux Center & NW Iowa
Just across the Big Sioux, Sioux County, Iowa has 22 Medicare Advantage plans for 2026 — including 6 at $0 premium and a top CMS rating of 4.5★. That's more choice than the Sioux Falls side of the border. Below is the real data — plans, local health stats, and hospital ratings — plus a live tool to check your ZIP. Big Sioux Benefits is licensed in Iowa and South Dakota.
By the numbers · Sioux County
Quick facts for Sioux County Medicare
Source: CMS Medicare Monthly Enrollment by County & CMS Medicare Advantage/Part D Landscape (PY2026).
Health profile · why coverage choice matters here
Chronic conditions among Sioux County adults
The right Medicare plan depends on your health. Here's how common key conditions are locally (CDC PLACES, model-based prevalence among 36,246 adults) — a reason to check each plan's drug formulary and specialist network before you enroll.
Source: CDC PLACES: Local Data for Better Health, County 2023 (2023).
Plans & stability
Medicare Advantage plans in Sioux County (2026)
Representative MA-PD plans with drug coverage, by CMS star rating. "Stability" is each plan's published CMS Overall Star Rating — a federal quality measure, not our opinion. We never call a plan best or worst; we show the data and help you compare.
| Plan | Carrier | Premium | Drug deductible | CMS rating | Stability |
|---|---|---|---|---|---|
| Aetna Medicare Value Care (HMO-POS) | Aetna | $41 | $615 | 4.5★ | Strong (CMS 4★+) |
| Iowa Health Advantage (HMO I-SNP) | Iowa Health Advantage | $41.5 | $615 | 4.5★ | Strong (CMS 4★+) |
| UHC Dual Complete IA-S001 (HMO-POS D-SNP) | UnitedHealthcare | $41.5 | $615 | 4★ | Strong (CMS 4★+) |
| Align ChoicePlus (PPO) | Sanford | $0 | $350 | 3.5★ | Average (CMS 3.5★) |
| HumanaChoice Giveback H5216-340 (PPO) | Humana | $0 | $600 | 3.5★ | Average (CMS 3.5★) |
| Aetna Medicare Enhanced Extra (PPO) | Aetna | $57 | $615 | 3.5★ | Average (CMS 3.5★) |
Source: CMS Medicare Advantage/Part D Landscape (PY2026). Premiums shown are consolidated monthly premiums; full plans vary — compare with the tool below.
Who covers you
Carriers in the Sioux metro
- Humana — 7 plans · PPO, HMO, PFFS + SNPs — the widest local lineup
- Aetna Medicare (CVS Health) — 2 plans · Includes a 4.5★ HMO-POS
- Align powered by Sanford Health Plan — 2 plans · Local Sanford-backed PPO
- Wellcare (Centene) — 4 plans · Dual-eligible D-SNPs
- Iowa Health Advantage — 2 plans · 4.5★ institutional SNP
- UnitedHealthcare / Molina / Wellpoint — 5 plans · Dual-eligible D-SNP options
Where you get care
Hospitals & providers nearby
- Sanford USD Medical Center (Sioux Falls) — Sioux Falls, SD — ~40 min · CMS 5★ hospital rating
- Avera McKennan Hospital (Sioux Falls) — Sioux Falls, SD — ~40 min · CMS 4★ hospital rating
Plus roughly 17 family-medicine providers and 3 pharmacies in the Sioux Center area — check that yours are in-network before you enroll.
Sources: CMS Hospital Compare — Overall Star Ratings · NPPES NPI Registry (provider counts).
Choosing a plan in NW Iowa — what matters here
- More plans, more to compare — 22 options means premium isn't the whole story; the 4.5★ plans are worth a close look against your needs.
- Cross-border care — many residents use Sioux Falls systems (Sanford 5★, Avera 4★); confirm they're in-network.
- Your prescriptions — Part D drug deductibles range from $300 to $615 across local plans.
- Compare the SD side — see Sioux Falls (Minnehaha County) plans →
NW Iowa Medicare questions, answered
How many Medicare Advantage plans are available in Sioux County, Iowa for 2026?
Sioux County, IA has 22 Medicare Advantage plans with drug coverage for 2026 — including 6 at $0 premium — from carriers including Humana, Aetna, Align (Sanford), Wellcare, UnitedHealthcare, and Iowa Health Advantage. That's notably more choice than just across the border in South Dakota.
Why does NW Iowa have more Medicare Advantage plans than Sioux Falls?
Iowa's Medicare Advantage market is more competitive: Sioux County offers 22 plans versus around 11 in the Sioux Falls metro. The highest CMS rating available locally is 4.5★ (Aetna Value Care and Iowa Health Advantage). More options means matching the plan to your doctors and drugs matters even more.
Can I keep my Sioux Falls doctors on a NW Iowa Medicare plan?
Often yes — many NW Iowa residents use Sioux Falls health systems (Sanford USD Medical Center, a CMS 5★ hospital, and Avera McKennan at 4★, both ~40 minutes away). Whether they're in-network depends on the plan; we check your specific providers before you enroll.
What health conditions are most common among Sioux County seniors?
Per CDC PLACES (2023), among Sioux County adults high blood pressure affects 32.5%, obesity 34.5%, arthritis 23.2%, and diabetes 8.9%. Each is a reason to check a plan's drug formulary and specialist network.
Does Big Sioux Benefits serve NW Iowa?
Yes — we're licensed in both South Dakota and Iowa and serve the whole Siouxland region, including Sioux Center, Orange City, and surrounding Sioux County. Our help is free.
Talk to a local Siouxland Medicare advisor
Free, no pressure — licensed in Iowa and South Dakota.