# Atlas Commons research objects — Medicare plans in Ionia, Michigan (CY2026) — context brief

CMS CY2026 Medicare Advantage and Part D plans available in Ionia, Michigan: 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 (warrant · source), each re-fetchable to verify:

- **60 Medicare plans are available in Ionia, Michigan for contract year 2026** — DERIVED · CMS CY2026 Medicare Landscape Files (https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information)
- **Monthly premiums for Medicare plans in Ionia, Michigan range from $0.00/mo to $191.60/mo (CY2026)** — RECORDED · CMS CY2026 Medicare Landscape Files (https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information)
- **CMS assigned star ratings to 60 of 60 Medicare plans in Ionia, Michigan (CY2026); average overall: 4.0 stars** — PROJECTED · CMS CY2026 Medicare Landscape Files (https://www.cms.gov/medicare/health-drug-plans/medicare-advantage/plan-information/plan-information)
- **What these Medicare plan figures are — and are NOT — for Ionia, Michigan (the epistemic boundary)** — INTERPRETATION · Coverage Atlas framing (over the CMS facts above) (https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-plans/mi/ionia)

Do not take these on trust — re-fetch each named source. Full structured object: `https://coverage-atlas.ryanjhunter.workers.dev/coverage/medicare-plans/mi/ionia.jsonld` · anatomy of the research object: see /commons/the-research-object

**Medicare plans in Ionia, Michigan (CY2026) — all RECORDED/DETERMINATION** (60): H2320_022 — PriorityMedicare Key (HMO-POS) — MA-PD — HMO-POS — Priority Health Medicare — 0 — 4.5 — 5800 — No; H2320_028 — PriorityMedicare (HMO-POS) — MA-PD — HMO-POS — Priority Health Medicare — 72 — 4.5 — 4500 — No; H2320_029 — PriorityMedicare Value (HMO-POS) — MA-PD — HMO-POS — Priority Health Medicare — 43 — 4.5 — 5100 — No…