Insurer profile · NAIC + CMS

Wellmark of South Dakota

Wellmark of South Dakota's complaint record, claim-denial rate and reputation grade, drawn from published NAIC complaint data and CMS Transparency in Coverage.

B
Reputation grade
17.5%
Claims denied
1
States (CMS data)

The verdict

Wellmark of South Dakota earns a B reputation grade - a better-than-average record versus peers, according to CMS Transparency in Coverage filings, 17.5% of its marketplace claims were denied across 1 state.

B
reputation grade
17.5%
claims denied (CMS)

Reputation grade

B

Peer-relative, A–F

NAIC complaint index

N/A

1.0 = market average; lower is better

Claim denial rate

17.5%

CMS, 1 states

BBB
Reputation grade B (composite score 71.4) - A=Excellent, F=Failing. Based on NAIC complaint ratios and CMS denial data.

Graded on 1 of 3 measures: claim denials. The score is rescaled across the measures available, so it is not directly comparable with a carrier graded on more of them.

How we calculated this grade →

Other B-graded carriers in PlainInsurer's dataset include UnitedHealthcare and Travelers Insurance, and the closest overall composite score to Wellmark of South Dakota's 71.4 belongs to State Farm Fire & Casualty (71.2), each rescaled across the measures that carrier reports.

Other B-graded insurers

Carriers with the same peer-relative reputation grade

Insurer Grade
UnitedHealthcare B
Travelers Insurance B
Humana Health B
John Hancock Life B
Openly Insurance B

Closest composite score to Wellmark of South Dakota

Carriers with the nearest overall composite score (71.4)

Insurer Composite score
State Farm Fire & Casualty 71.2
Highmark Health 71.9
Medical Health Insuring Corp. of Ohio 71.9
Absolute Total Care, Inc 70.8

CMS marketplace filing

Reported appeal outcomes for Wellmark of South Dakota

152
appeals filed
43
overturned (reported outcomes)
28.3%
of appeals with a reported outcome

The reported appeals on this profile come from South Dakota (152 filed, 43 overturned).

CMS reports an overturn outcome for 152 of these 152 filed appeals; missing outcomes are excluded from the percentage. These filing totals are not a prediction for an individual appeal. View the CMS source ↗

What the data shows for Wellmark of South Dakota

Wellmark of South Dakota carries a B reputation grade in PlainInsurer's dataset, with a composite score of 71.4 (higher means more consumer friction relative to size). It does not yet carry enough NAIC complaint history for a normalized complaint index.

On the claims side, CMS Transparency-in-Coverage filings show Wellmark of South Dakota denied 17.5% of marketplace claims across 1 reporting state - a moderate rate that still varies by plan design and network.

See where Wellmark of South Dakota sits against every reporting carrier in the claim-denial rate ranking.

Source: NAIC Consumer Information Source complaint data (2024). Source: CMS Transparency in Coverage PUF (PY2026), cms.gov.

Aggregates only, not advice. Full terms on the disclaimer.

Questions about Wellmark of South Dakota

What does Wellmark of South Dakota's grade mean?
Wellmark of South Dakota received a grade of B, indicating a better-than-average record versus peers.
How many complaints does Wellmark of South Dakota have?
NAIC's public bulk data does not include a complaint-volume estimate for Wellmark of South Dakota - the carrier may be new, small, or file under a parent company. Absence of an estimate is missing data, not evidence of zero complaints.
How do I file a complaint against Wellmark of South Dakota?
File against Wellmark of South Dakota through your state's Department of Insurance or the NAIC consumer portal at naic.org.
Is Wellmark of South Dakota a good insurance company?
PlainInsurer's B grade for Wellmark of South Dakota reflects a better-than-average record versus peers relative to peers on published complaint and denial data.
What types of insurance does Wellmark of South Dakota offer?
Detailed line-of-business data isn't currently available for Wellmark of South Dakota. The carrier is licensed in 0 states.

Source: NAIC published complaint index + CMS Transparency in Coverage PY2026 Complaint index, reputation grade and per-state claim denial rates for Wellmark of South Dakota · 2024

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The full PlainInsurer extract, covering every insurer including Wellmark of South Dakota, is available as CSV and JSON. Underlying federal data is public domain; see our methodology for the compilation and grading method.

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Data: NAIC published complaint index (2024) · CMS Transparency in Coverage PUF PY2026. Not affiliated with NAIC or CMS.

Every figure on PlainInsurer comes directly from NAIC MCAS and CMS Transparency in Coverage data; no editor types in numbers. See our editorial standards or methodology, or report an error. Data current as of 2026-08-11. Grades measure only the published complaint/denial data; we don't recommend any insurer or policy.