---
title: Atlas Commons research objects — hospital quality surface for Washington (2026)
license: CC0-1.0
source: CMS Care Compare (2026)
---

# Atlas Commons research objects — hospital quality surface for Washington (2026)

Washington's hospital quality data from CMS Care Compare, with each figure's epistemic status labeled so a consuming agent can weight it correctly: measured hospital/subtype/ownership counts; the CMS Overall Star Rating distribution (a model CMS computes, not a direct measurement); the atlas-computed state mean HCAHPS star and median measure comparisons (in-house aggregations CMS does not publish); and the interpretive boundary (these are state aggregates, not a verdict on any one hospital). Source: CMS Care Compare. CC0.

## Claims

### 100 hospitals are listed in Washington on CMS Care Compare (2026)

**RECORDED.** CMS Care Compare lists 100 hospitals in Washington for 2026; 60 carry an Overall Star Rating and 40 do not. A census of listed hospitals.

Source: CMS Care Compare (2026) — https://www.medicare.gov/care-compare/
Falsifier: A RECORD of measured/reported events (occurred=true) from CMS Care Compare (2026); superseded when CMS Care Compare (2026) publishes its next release.

### Hospital counts by CMS facility type in Washington (2026): Acute Care Hospitals 46, Critical Access Hospitals 39, Psychiatric 9, Childrens 3

**RECORDED.** Counts of the 100 hospitals by CMS facility type: Acute Care Hospitals 46, Critical Access Hospitals 39, Psychiatric 9, Childrens 3, Acute Care - Veterans Administration 2, Acute Care - Department of Defense 1. A count of listed facilities per CMS type.

Source: CMS Care Compare (2026) — https://www.medicare.gov/care-compare/
Falsifier: A RECORD of measured/reported events (occurred=true) from CMS Care Compare (2026); superseded when CMS Care Compare (2026) publishes its next release.

### Hospital counts by ownership in Washington (2026): Government - Hospital District or Authority 38, Voluntary non-profit - Private 31, Voluntary non-profit - Church 11, Voluntary non-profit - Other 6

**RECORDED.** Counts of the 100 hospitals by CMS ownership category: Government - Hospital District or Authority 38, Voluntary non-profit - Private 31, Voluntary non-profit - Church 11, Voluntary non-profit - Other 6, Proprietary 6, Government - Local 3, Government - State 2, Veterans Health Administration 2, Department of Defense 1. A count of listed facilities per ownership type.

Source: CMS Care Compare (2026) — https://www.medicare.gov/care-compare/
Falsifier: A RECORD of measured/reported events (occurred=true) from CMS Care Compare (2026); superseded when CMS Care Compare (2026) publishes its next release.

### CMS Overall Star Rating distribution for Washington hospitals (2026): 5★ 6, 4★ 18, 3★ 21, 2★ 14, 1★ 1

**MODELED.** Counts of the 60 rated hospitals by CMS Overall Star Rating: 5★ 6, 4★ 18, 3★ 21, 2★ 14, 1★ 1. The Overall Star Rating is a LATENT-VARIABLE STATISTICAL MODEL CMS computes by combining measure-group scores — it is NOT a direct measurement; the count by star is mechanical over CMS's published per-hospital ratings.

Source: CMS Care Compare (2026) — https://www.medicare.gov/care-compare/
Falsifier: occurred=FALSE: a MODELED figure — an authority's computed quantity ESTIMATING an independent/latent value (an index or annualized expectation), REPRODUCIBLE from its disclosed inputs, NOT a record of an event. adjudged=TRUE because CMS Care Compare (2026) (an external authority) computes and publishes it. The grounding promises "reproduce this from the inputs" — so a categorical authority VERDICT that is NOT reproducible (a star rating, a risk class) is a 'determination', not 'modeled'. Superseded by the next release.

### State mean HCAHPS patient-experience star for Washington is 3.254 (a computed average, 2026)

**DERIVED.** The mean of the CMS HCAHPS summary star (patient experience) across rated Washington hospitals is 3.254. Each HCAHPS star is a CMS survey-based composite; this STATE MEAN is an in-house aggregation (the atlas computed it), not a CMS-published figure.

Source: CMS Care Compare (2026) — atlas-computed state mean of CMS HCAHPS stars — https://www.medicare.gov/care-compare/
Falsifier: occurred=FALSE (a calculation, not an event) and adjudged=FALSE (a transparent in-house formula, not an authority's verdict — no external adjudicator). Reproduce it from its named inputs; falsified if the formula or inputs are wrong. Lower warrant than the adjudged figures above.

### Median Washington hospital's measures vs national (2026): 0 better, 5 no different, 0 worse

**DERIVED.** For the median Washington hospital, the count of quality measures rated better than / no different from / worse than the national rate is 0 / 5 / 0. The better/worse determination is CMS's risk-adjusted comparison (modeled); the MEDIAN across hospitals is an in-house aggregation, not a CMS-published figure.

Source: CMS Care Compare (2026) — atlas-computed state median of CMS risk-adjusted measure comparisons — https://www.medicare.gov/care-compare/
Falsifier: occurred=FALSE (a calculation, not an event) and adjudged=FALSE (a transparent in-house formula, not an authority's verdict — no external adjudicator). Reproduce it from its named inputs; falsified if the formula or inputs are wrong. Lower warrant than the adjudged figures above.

### What these care figures are — and are NOT — for Washington (the epistemic boundary)

**INTERPRETATION.** Every figure above is a STATE-LEVEL aggregate over CMS Care Compare: counts of listed hospitals (recorded), the distribution of CMS's MODELED Overall Star Rating (modeled), and atlas-computed state means/medians (derived). They are NOT a verdict on any individual hospital, a measure of outcomes you will personally experience, or a substitute for CMS Care Compare's per-hospital detail. For a specific hospital, use CMS Care Compare directly.

Source: Care Atlas framing (over the CMS Care Compare facts above) — https://care-atlas.ryanjhunter.workers.dev/
Falsifier: occurred=FALSE (a framing, not an event) and adjudged=FALSE (the atlas's reading, not a CMS verdict) — the LOWEST-warrant claim here. The figures above span recorded counts, CMS modeled star ratings, and atlas-derived aggregates; the four-status labels each, and this is the only interpretation.

---

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://care-atlas.ryanjhunter.workers.dev/care/states/wa.jsonld`

## Data

### Washington — every care indicator (typed)

Each figure for this state with its four-status warrant and named source. RECORDED = an observed count; DERIVED = an in-house aggregation the atlas computed over CMS inputs (CMS does not publish it).

| indicator | value | warrant | source |
| --- | --- | --- | --- |
| Hospitals listed | 100 | RECORDED | CMS Care Compare (2026) |
| Hospitals with an Overall Star Rating | 60 | RECORDED | CMS Care Compare (2026) |
| Hospitals without an Overall Star Rating | 40 | RECORDED | CMS Care Compare (2026) |
| State mean HCAHPS patient-experience star | 3.254 | DERIVED | CMS Care Compare (2026) — atlas-computed state mean |
| Median hospital — measures better than national | 0 | DERIVED | CMS Care Compare (2026) — atlas-computed state median |
| Median hospital — measures no different from national | 5 | DERIVED | CMS Care Compare (2026) — atlas-computed state median |
| Median hospital — measures worse than national | 0 | DERIVED | CMS Care Compare (2026) — atlas-computed state median |
| Data year | 2026 | RECORDED | CMS Care Compare (2026) |
| CMS source dataset | care_gold.hospital_quality_serving_surface | — | CMS Care Compare (2026) |
| CMS source id | src:cms:care-compare:2026 | — | CMS Care Compare (2026) |
| Content hash | b522bc26e96ff7b0 | — | CMS Care Compare (2026) |
| Generated at | 2026-06-20T03:42:08.398414+00:00 | — | CMS Care Compare (2026) |

### Washington — CMS Overall Star Rating distribution (MODELED)

Count of rated hospitals by CMS Overall Star Rating. The star is a CMS latent-variable statistical model over measure groups, not a direct measurement; the count by star is mechanical over CMS's published per-hospital ratings.

| stars | hospitals |
| --- | --- |
| 5 | 6 |
| 4 | 18 |
| 3 | 21 |
| 2 | 14 |
| 1 | 1 |

### Washington — hospitals by CMS facility type (RECORDED)

Count of listed hospitals per CMS facility type — a recorded census of the facilities CMS lists.

| facility_type | hospitals |
| --- | --- |
| Acute Care Hospitals | 46 |
| Critical Access Hospitals | 39 |
| Psychiatric | 9 |
| Childrens | 3 |
| Acute Care - Veterans Administration | 2 |
| Acute Care - Department of Defense | 1 |

### Washington — hospitals by ownership (RECORDED)

Count of listed hospitals per CMS ownership category — a recorded census of the facilities CMS lists.

| ownership | hospitals |
| --- | --- |
| Government - Hospital District or Authority | 38 |
| Voluntary non-profit - Private | 31 |
| Voluntary non-profit - Church | 11 |
| Voluntary non-profit - Other | 6 |
| Proprietary | 6 |
| Government - Local | 3 |
| Government - State | 2 |
| Veterans Health Administration | 2 |
| Department of Defense | 1 |