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South Dakota · 2027 plan year

Medicare Advantage HMO plans in South Dakota

There are 2 Medicare Advantage HMO plans in South Dakota from 1 carrier. None of the 2 with a published premium charges $0 a month; beyond the premium, what separates them is network, drug coverage and how much you could owe in a bad year.

2
HMO plans
1
Carriers
23
Counties covered
—
Avg stars (0 of 2 rated)
$6,800
Median out-of-pocket max

Across the 2 HMO plans in South Dakota that publish one, the in-network out-of-pocket maximum has a median of $6,800 and tops out at $9,850 — the ceiling on what you pay in a year for covered in-network care. The mean is $6,800, which sits below the median — the spread is not symmetric, so the median is the better guide.

A $0 plan premium is not a free plan. You still pay your Part B premium to Medicare, plus copays and coinsurance as you use care. Star ratings are published by CMS per contract, so every plan a carrier files under the same contract shares one rating — it describes the carrier’s performance, not this specific plan’s benefits. Estimate your real costs.

One insurer sells every Medicare Advantage HMO plan in South Dakota.

All 2 HMO plans here come from Great Plains Medicare Advantage. With the field this narrow, the decision is mostly about which plan design inside that network fits your care — so start by confirming your doctors and hospitals are in it.

South Dakota has one of the smallest Medicare Advantage HMO markets in the country.

There are 2 HMO plans here from 1 insurer, against an average of about 77 per state. Fewer options makes the comparison quicker, but it also means one plan's network or drug list can decide the whole choice.

Not sure whether Medicare Advantage suits you at all? Medicare Advantage vs Original Medicare covers the trade in plain language.

Highest rated

Top-rated HMO plans in South Dakota

PlanStarsOut-of-pocket maxPremium / mo
Great Plain Medicare Advantage Gold (HMO I-SNP)Great Plains Medicare Advantage · Institutional SNPNot rated$3,750$106
Great Plains Medicare Advantage (HMO I-SNP)Great Plains Medicare Advantage · Institutional SNPNot rated$9,850$5

Showing 2 of 2. See all South DakotaMedicare Advantage plans →

Who sells here

HMO plans by carrier

CarrierPlansAvg starsSNPs
Great Plains Medicare AdvantageSanford Health2—2
Other plan types in South Dakota

How HMO compares

HMO
Not rated · 1 carriers
2 plans · you are here
PPO
4.1★ avg · 4 carriers
20 plans

All South DakotaMedicare Advantage plans →

Nearby on quality

States with similar HMO star ratings

North Dakota
Not rated
2 HMO plans
Common questions

South Dakota Medicare Advantage HMO plans, answered

How much do Medicare Advantage HMO plans cost in South Dakota?
Of the South Dakota HMO plans with a published premium, 0% charge $0 a month. The monthly premium is what you pay the plan for its medical (Part C) and drug (Part D) coverage together. A $0 premium does not mean the plan is free: you still pay your Part B premium to Medicare, plus copays and coinsurance as you use care. The number that actually caps a bad year is the in-network out-of-pocket maximum, with a median of $6,800 across these plans.
What are the star ratings for South Dakota HMO plans?
None of the HMO plans in South Dakota carries a CMS star rating yet. CMS rates a contract rather than an individual plan, so every plan a carrier files under the same contract shares one score. A contract that is too new or has too little data is not rated at all, which is different from rating badly.
How many Medicare Advantage HMO plans are available in South Dakota?
There are 2 HMO plans from 1 carrier, sold across 23 counties. Availability is set by county, so the plans you can actually join depend on where you live — the full list is rarely available in any one place. 2 of them are Special Needs Plans with extra eligibility rules (see below).
Do South Dakota HMO plans include prescription drug coverage?
2 of the 2 HMO plans here bundle Part D drug coverage into the plan. That is the usual arrangement for Medicare Advantage, and you pay one monthly premium to the plan — but that premium has a medical (Part C) part and a drug (Part D) part, and the drug part is often what makes it more than $0. Each plan's page shows both. If you join a Medicare Advantage plan without drug coverage, you generally cannot add a standalone Part D plan alongside it.
What is a Special Needs Plan, and are there any in South Dakota?
2 of the 2 HMO plans in South Dakota are Special Needs Plans. SNPs limit enrollment to people who also have Medicaid, live in a nursing home or similar institution, or have a qualifying chronic condition. They often carry richer benefits for that group, but if you do not meet the criteria you cannot join one — so the real number of plans open to you may be lower than the total.

A $0 premium is not the whole cost.
See what a year really looks like.

Simplivera models your actual annual costs across South Dakota Medicare Advantage plans.

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