Fonteum Care Compare · Washington
Washington ambulatory surgical centers: 163 Medicare-certified, ASC quality measures with NPI bridge.
Per-facility ASC-1 through ASC-12 quality measures with deterministic NPI bridge (100.0% NPI coverage in Washington) — the only Care Compare facility type with a usable provider-identity join key.
ASC-12 performance breakdown — Washington
ASC-12 measures hospital-visit rate within 7 days of outpatient surgery. CMS-published performance categories on facilities meeting the volume threshold.
N/A
119
No Different Than the National Rate
38
Number of Cases Too Small
6
ASC-1 through ASC-11 quality measures — Washington state means
Each row is the mean CMS-published rate across Washingtonfacilities that meet the measure’s reporting threshold. Lower is better for adverse-event measures; higher is better for the prophylactic-antibiotic process measure. Facilities CMS suppressed for low case volume are excluded from the mean, not counted as zero.
| Measure | Direction | State mean | Facilities reporting |
|---|---|---|---|
| Patient burn rate | Lower is better | 0.00% | 82 |
| Unplanned hospital transfer/admission | Lower is better | 0.02% | 94 |
| Wrong site, side, patient, or procedure | Lower is better | 0.00% | 85 |
| All-cause hospital readmission rate | Lower is better | 0.06% | 96 |
| Appropriate prophylactic antibiotic use | Higher is better | 90.74% | 33 |
| Cataract surgery complication rate | Lower is better | 86.72% | 3 |
Highest-volume ASCs — Washington
Top 25 by ASC-12 reportable case volume (a procedural-volume signal, not a quality measure).
| Facility | City | ASC-12 cases | Category |
|---|---|---|---|
| Gastroenterology associates llc | OLYMPIA | 4731 | No Different Than the National Rate |
| Northwest endoscopy center llc | BELLINGHAM | 4388 | No Different Than the National Rate |
| Olympia multi specialty clinic ambulatory procedures cntr pllc | OLYMPIA | 3176 | No Different Than the National Rate |
| The polyclinic | SEATTLE | 3125 | No Different Than the National Rate |
| Spokane digestive disease center ps | SPOKANE | 3113 | No Different Than the National Rate |
| Digestive disease and endoscopy center pllc | SILVERDALE | 2975 | No Different Than the National Rate |
| Washington gastroenterology | TACOMA | 2895 | No Different Than the National Rate |
| Puget sound gastroenterology ps | SEATTLE | 2649 | No Different Than the National Rate |
| The everett clinic | EVERETT | 2634 | No Different Than the National Rate |
| The vancouver clinic inc | VANCOUVER | 2430 | No Different Than the National Rate |
| Mid columbia endoscopy center llc | KENNEWICK | 2249 | No Different Than the National Rate |
| Washington gastroenterology | PUYALLUP | 1990 | No Different Than the National Rate |
| Eastside endoscopy center pllc | ISSAQUAH | 1843 | No Different Than the National Rate |
| Washington gastroenterology | FEDERAL WAY | 1691 | No Different Than the National Rate |
| Eastside endoscopy center pllc | BELLEVUE | 1638 | No Different Than the National Rate |
| Puget sound gastroetnerology at kirklandevergreen endo ctr | KIRKLAND | 1621 | No Different Than the National Rate |
| Western washington medical group endoscopy center dba the endoscopy center | EVERETT | 1564 | No Different Than the National Rate |
| Peacehealth gastroenterology endoscopy center | LONGVIEW | 1445 | No Different Than the National Rate |
| Washington gastroenterology | GIG HARBOR | 1339 | No Different Than the National Rate |
| Puyallup endoscopy center | PUYALLUP | 1211 | No Different Than the National Rate |
| Edmonds endoscopy center | EDMONDS | 1182 | No Different Than the National Rate |
| Virginia mason medical center | BELLEVUE | 899 | No Different Than the National Rate |
| Kadlec regional medical center dba kadlec ambulatory endoscopy center lee campus | RICHLAND | 865 | No Different Than the National Rate |
| Pacmed asc | SEATTLE | 828 | No Different Than the National Rate |
| Salmon surgery center | SILVERDALE | 781 | No Different Than the National Rate |
Washington ambulatory surgical centers — FAQ
- How many ambulatory surgical centers are Medicare-certified in Washington?
- 163 Medicare-certified ambulatory surgical centers operate in Washington as of the CMS Care Compare ASC Quality snapshot (2026-05-07). Every facility carries a National Provider Identifier — ASCs are the only Care Compare facility type with a 100% deterministic NPI bridge.
- What ASC quality measures does Washington report?
- CMS publishes ASC-1 through ASC-12. This page aggregates the state mean for the per-facility rate measures that have at least one reporting facility in Washington, plus the ASC-12 colonoscopy follow-up performance category. Measures are CMS-published rates: lower is better for adverse-event measures (burns, transfers, wrong-site events, readmissions, cataract complications) and higher is better for appropriate prophylactic antibiotic use.
- Why are some facilities missing a quality rate?
- CMS suppresses a measure when a facility falls below the minimum case volume for that measure in the reporting window. Suppressed facilities are excluded from each state mean rather than counted as zero, so the averages reflect only facilities CMS actually scored.
- Where does this ASC data come from and how current is it?
- All columns trace to the CMS Care Compare Ambulatory Surgical Center Quality dataset (PDC 4jcv-atw7), source-modified 2025-12-16. Fonteum redistributes the public-domain CMS file without alteration and links every row to its provenance record; cross-check any facility at Medicare.gov.
Compare other facility types
Every Fonteum Care Compare module carries the same per-facility provenance for Washington and the rest of the country.