---
title: Atlas Commons research objects — Medicare plans in Lyman, South Dakota (CY2026)
license: CC0-1.0
source: CMS CY2026 Medicare Landscape Files
---

# Atlas Commons research objects — Medicare plans in Lyman, South Dakota (CY2026)

CMS CY2026 Medicare Advantage and Part D plans available in Lyman, South Dakota: plan count (AGGREGATED), premium range (RECORDED from CMS Landscape Files), CMS star ratings (DETERMINATION — CMS-issued institutional quality rating), and epistemic boundary (INTERPRETATION). Premiums are base plan premiums; actual cost depends on Part B premium, IRMAA, and LIS. Star ratings are CMS quality scores. This surface informs; it does not rank or advise. Use medicare.gov/plan-compare to enroll. CC0.

## Claims

### 8 Medicare plans are available in Lyman, South Dakota for contract year 2026

**DERIVED.** The CMS CY2026 Medicare Landscape Files record 8 Medicare Advantage and Part D plans available in Lyman, South Dakota. Atlas Commons counted the rows; CMS published the underlying plan×county records, not this county-level total.

Source: CMS CY2026 Medicare Landscape Files — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information
Falsifier: occurred=TRUE: a faithful COUNT/SUM/total over the named record set that introduces NO modeling choice — it IS the case in the record. adjudged=FALSE: Atlas Commons computed the aggregate; CMS CY2026 Medicare Landscape Files published the underlying records, NOT this figure. Re-count it from the named source to verify. Distinct from a median/ratio/index (which picks a population, weighting, denominator, or threshold — a constructed statistic → 'derived', occurred=FALSE) and from an authority-published total (→ 'recorded', adjudged=TRUE).

### Monthly premiums for Medicare plans in Lyman, South Dakota range from $49.00/mo to $334.70/mo (CY2026)

**RECORDED.** The CMS CY2026 Medicare Landscape Files publish per-plan monthly consolidated premiums for Lyman, South Dakota. Across the 6 plans with a published premium, the range is $49.00/mo to $334.70/mo. These are the plan's base monthly premium — your actual cost depends on income-related adjustments (IRMAA), any applicable Low Income Subsidy (LIS/Extra Help), and your Part B premium. A $0 plan premium does not mean $0 total cost.

Source: CMS CY2026 Medicare Landscape Files — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information
Falsifier: Verify in the CMS CY2026 Medicare Landscape Files for Lyman, South Dakota. Falsified if the CMS-published per-plan premium figures differ.

### CMS assigned star ratings to 8 of 8 Medicare plans in Lyman, South Dakota (CY2026); average overall: 3.5 stars

**PROJECTED.** CMS issued Overall star ratings (1–5 stars) to 8 of 8 Medicare plans in Lyman, South Dakota for CY2026. The unweighted average overall star rating across rated plans is 3.5. Star ratings are CMS quality scores — an institutional determination, not a measured event. A higher rating reflects better performance across CMS quality measures. Ratings cover the contract's overall performance, not this county specifically; a plan may be available in your county with a rating earned across its full service area.

Source: CMS CY2026 Medicare Landscape Files — https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information
Falsifier: Verify CMS star ratings for these contract IDs at the CMS Medicare Plan Finder or the CMS star ratings dataset. Falsified if the CMS-published ratings for these contracts differ. Note: PDP-only plans and newly contracted plans may not have an overall star rating — the 0 unrated plans in this county are not rated, not unqualified.

### What these Medicare plan figures are — and are NOT — for Lyman, South Dakota (the epistemic boundary)

**INTERPRETATION.** This page lists Medicare Advantage (MA) and Part D Prescription Drug Plan (PDP) plans available in Lyman, South Dakota for CY2026, with their CMS-published base premiums and CMS star ratings. The premiums shown are the PLAN's base monthly premium — your actual monthly cost depends on the Part B premium (deducted from Social Security for most enrollees), income-related premium adjustments (IRMAA), and any Low Income Subsidy (Extra Help). A star rating is CMS's quality score for the plan's overall performance — a higher rating is generally better, but the "best" plan depends on your specific prescriptions, preferred doctors, and budget. This surface informs and compares; it does NOT rank plans, recommend a "best" plan, or account for your individual situation. To compare plans with your specific drugs and providers and to enroll, use the official Medicare Plan Finder at medicare.gov/plan-compare. For free, unbiased help, contact your State Health Insurance Assistance Program (SHIP) or call 1-800-MEDICARE (1-800-633-4227).

Source: Coverage Atlas framing (over the CMS facts above) — https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-plans/sd/lyman
Falsifier: occurred=FALSE (a framing) and adjudged=FALSE (the atlas's reading, not a CMS verdict) — the LOWEST-warrant claim here.

---

Every claim above carries a four-status warrant (RECORDED / MODELED / DERIVED / INTERPRETATION) and a named source you can re-fetch — this is a research object, not a flat fact. Structured: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-plans/sd/lyman.jsonld`

## Data

### Medicare plans in Lyman, South Dakota (CY2026) — all RECORDED/DETERMINATION

Plan list from the CMS CY2026 Medicare Landscape Files. Premiums = RECORDED (CMS-published per-plan figures). Star ratings = DETERMINATION (CMS-issued institutional quality ratings). Plan count = AGGREGATED (Atlas Commons counted the rows; CMS published them).

| contract_plan_id | plan_name | category | plan_type | organization | monthly_premium_usd | overall_stars | moop_in_network_usd | snp |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| H2450_007 | Medica Prime Solution Thrift w/Rx (Cost) | Cost | Cost | Medica | 92.8 | 3.5 | 6750 | No |
| H2450_030 | Medica Prime Solution Thrift (Cost) | Cost | Cost | Medica | N/A | 3.5 | 6750 | No |
| H2450_034 | Medica Prime Solution Core (Cost) | Cost | Cost | Medica | N/A | 3.5 | 3750 | No |
| H2450_035 | Medica Prime Solution Core w/Rx (Cost) | Cost | Cost | Medica | 221.7 | 3.5 | 3750 | No |
| H2450_036 | Medica Prime Solution Premier (Cost) | Cost | Cost | Medica | N/A | 3.5 | 3000 | No |
| H2450_037 | Medica Prime Solution Premier w/Rx (Cost) | Cost | Cost | Medica | 334.7 | 3.5 | 3000 | No |
| H2450_044 | Medica Prime Solution Standard (Cost) | Cost | Cost | Medica | N/A | 3.5 | 5900 | No |
| H2450_049 | Medica Prime Solution Standard w/Rx (Cost) | Cost | Cost | Medica | N/A | 3.5 | 5900 | No |