# Atlas Commons research objects — ACA marketplace coverage for Missouri (2026) — context brief

Missouri's ACA marketplace coverage from the CMS ACA Plan Attributes PUF, with each figure's epistemic status labeled: every plan count — medical plans, standalone dental plans, and breakdowns by metal level, plan type, HSA-eligibility, and referral requirement — is a measured census of plans offered (counts of rows in the CMS file, all labeled RECORDED); the sticker premium landscape by metal tier (40yo, pre-subsidy) is a recorded set of published CMS Rate PUF rates, with the subsidy note labeled CONTEXT; the boundary note is context (labeled CONTEXT) — these count plans offered and their sticker price, not enrollment, the insured rate, or net cost after subsidies. Sources: CMS ACA Plan Attributes PUF, CMS Marketplace Rate PUF. CC0.

Claims (warrant · source), each re-fetchable to verify:

- **588 ACA medical marketplace plans are offered in Missouri for plan year 2026** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **Medical plan counts by CMS metal level in Missouri (2026): Silver 294, Expanded Bronze 148, Gold 124, Bronze 16** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **Medical plan counts by CMS plan type in Missouri (2026): EPO 588** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **170 of 588 medical plans in Missouri are HSA-eligible (2026)** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **588 of 588 medical plans in Missouri require no specialist referral (2026)** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **66 standalone dental plans are offered in Missouri for plan year 2026** — RECORDED · CMS ACA Plan Attributes PUF (2026 plan year) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **STICKER ACA premiums in Missouri for a 40-year-old (before tax credits): Silver median $719/mo** — DERIVED · CMS Marketplace Rate Public Use File (atlas-aggregated per tier) (https://www.cms.gov/marketplace/resources/data/public-use-files)
- **What the Missouri premiums mean — sticker, not your price** — INTERPRETATION · Coverage Atlas framing (over the CMS Rate PUF figures above) (https://coverage-atlas.ryanjhunter.workers.dev/)
- **What these coverage figures are — and are NOT — for Missouri (the epistemic boundary)** — INTERPRETATION · Coverage Atlas framing (over the CMS facts above) (https://coverage-atlas.ryanjhunter.workers.dev/)

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

**Missouri — every coverage indicator (typed)** (11): Medical plans offered — 588 — RECORDED — CMS ACA Plan Attributes PUF (2026); Medical issuers — 8 — RECORDED — CMS ACA Plan Attributes PUF (2026); HSA-eligible medical plans — 170 — RECORDED — CMS ACA Plan Attributes PUF (2026)…
**Missouri — medical plans by CMS metal level (RECORDED)** (5): Silver — 294; Expanded Bronze — 148; Gold — 124…
**Missouri — medical plans by CMS plan type (RECORDED)** (1): EPO — 588…
**Missouri — medical plans by market coverage (RECORDED)** (1): Individual — 654…
**Missouri — sticker ACA premiums by metal tier (40yo, pre-subsidy, DERIVED)** (4): Catastrophic — 10 — 485 — 478 — 551 — 365 — 614; Bronze — 189 — 558 — 502 — 619 — 405 — 769; Silver — 184 — 719 — 651 — 796 — 523 — 992…
**Missouri — issuers present on the marketplace (RECORDED)** (15): Ambetter from Home State Health; Anthem Blue Cross and Blue Shield; BEST Life…