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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

© 2026 Fonteum, Inc. All rights reserved.

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Fonteum Care Compare · Acute Care Hospitals · CCN 450865

Ascension Seton Southwest

Acute Care Hospitals · Austin, TX

Entity nameAscension Seton Southwest
CMS Complications and Deaths 2026-04-28 · 2026-05-07
CCN450865
CMS Complications and Deaths 2026-04-28 · 2026-05-07
TypeAcute Care Hospitals
CMS Complications and Deaths 2026-04-28 · 2026-05-07
LocationAustin, TX
CMS Complications and Deaths 2026-04-28 · 2026-05-07
OwnershipVoluntary non-profit - Private
CMS Hospital General Info · 2026-05-07
Emergency servicesYes
CMS Hospital General Info · 2026-05-07
CCN 450865Acute Care HospitalsUpdated 2026-05-07
CMS-attested · 450865See the proof → Differ

Ascension Seton Southwest is a Medicare-certified hospital (Acute Care Hospitals) in Austin, TX, identified by CMS Certification Number 450865. CMS has not assigned an overall star rating in the current snapshot. Fonteum publishes 98 provenance-tracked CMS quality measures for this hospital, each signed to its primary federal dataset as of Q2 2026.

Fonteum is a US healthcare provenance registry that publishes signed, chain-of-custody-attested research and data pages on Medicare, Medicaid, and federal regulator datasets, drawing from 23 federal source families across CMS, OIG, HRSA, AHRQ, and HHS.

Data last updated: 2026-05-07 · Source: Multiple CMS Care Compare datasets · View on Medicare.gov

Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer. Last reviewed: June 2026 · Next review: December 2026. This page is data-led and informational; it reports CMS measures and their provenance, not clinical guidance.

How do patients rate Ascension Seton Southwest?

CMS publishes 51 patient experience (hcahps) measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Communication about medicines — always (%)77%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Communication about medicines — sometimes or never (%)14%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Communication about medicines — usually (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Discharge information — no (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Discharge information — yes (%)91%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctor communication — always (%)87%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctor communication — sometimes or never (%)4%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctor communication — usually (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors explained things clearly — always (%)86%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors explained things clearly — sometimes or never (%)4%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors explained things clearly — usually (%)10%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors listened carefully — always (%)81%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors listened carefully — sometimes or never (%)5%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors listened carefully — usually (%)14%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors treated patients with courtesy and respect — always (%)93%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors treated patients with courtesy and respect — sometimes or never (%)3%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Doctors treated patients with courtesy and respect — usually (%)4%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurse communication — always (%)91%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurse communication — sometimes or never (%)2%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurse communication — usually (%)7%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses explained things clearly — always (%)89%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses explained things clearly — sometimes or never (%)2%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses explained things clearly — usually (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses listened carefully — always (%)90%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses listened carefully — sometimes or never (%)3%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses listened carefully — usually (%)7%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses treated patients with courtesy and respect — always (%)96%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses treated patients with courtesy and respect — sometimes or never (%)3%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Nurses treated patients with courtesy and respect — usually (%)1%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Overall hospital rating — rated 0–6 (%)5%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Overall hospital rating — rated 7–8 (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Overall hospital rating — rated 9–10 (%)86%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Quietness at night — always (%)74%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Quietness at night — sometimes or never (%)2%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Quietness at night — usually (%)24%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Recovery symptoms information at discharge — no (%)5%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Recovery symptoms information at discharge — yes (%)95%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Recovery-at-home information at discharge — no (%)13%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Recovery-at-home information at discharge — yes (%)87%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Room and bathroom cleanliness — always (%)80%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Room and bathroom cleanliness — sometimes or never (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Room and bathroom cleanliness — usually (%)11%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff described medication side effects — always (%)68%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff described medication side effects — sometimes or never (%)25%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff described medication side effects — usually (%)7%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff explained new medicines — always (%)86%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff explained new medicines — sometimes or never (%)3%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Staff explained new medicines — usually (%)11%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Would recommend the hospital — definitely no (%)4%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Would recommend the hospital — definitely yes (%)87%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07
Would recommend the hospital — probably yes (%)9%
CMS HCAHPS Patient Survey 2026-04-28 · 2026-05-07

What are the mortality rates at Ascension Seton Southwest?

CMS publishes 2 mortality measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Mortality — Ascension Seton Southwest · CCN 450865 · 2026-05-07
MeasureValueCompared to nationalSource
Death rate for pneumonia patients14.7%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality Rate4.1%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07

How often are patients readmitted to Ascension Seton Southwest?

CMS publishes 3 readmissions measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Readmissions — Ascension Seton Southwest · CCN 450865 · 2026-05-07
MeasureValueCompared to nationalSource
Hospital return days for pneumonia patients0.3→ Average Days per 100 DischargesCMS Unplanned Hospital Visits 2026-04-28 · 2026-05-07
Hybrid Hospital-Wide All-Cause Readmission Measure (HWR)14.8%→ No Different Than the National RateCMS Unplanned Hospital Visits 2026-04-28 · 2026-05-07
Pneumonia (PN) 30-Day Readmission Rate15.7%→ No Different Than the National RateCMS Unplanned Hospital Visits 2026-04-28 · 2026-05-07

What are the complication and safety rates at Ascension Seton Southwest?

CMS publishes 6 complications and patient safety measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Complications and patient safety — Ascension Seton Southwest · CCN 450865 · 2026-05-07
MeasureValueCompared to nationalSource
CMS Medicare PSI 90: Patient safety and adverse events composite0.99%→ No Different Than the National ValueCMS Complications and Deaths 2026-04-28 · 2026-05-07
Iatrogenic pneumothorax rate0.21%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07
In-hospital fall-associated fracture rate0.27%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07
Perioperative pulmonary embolism or deep vein thrombosis rate3.49%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07
Postoperative hemorrhage or hematoma rate2.33%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07
Pressure ulcer rate0.62%→ No Different Than the National RateCMS Complications and Deaths 2026-04-28 · 2026-05-07

What are the infection rates at Ascension Seton Southwest?

CMS publishes 15 healthcare-associated infections measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Catheter Associated Urinary Tract Infections (ICU + select Wards): Number of Urinary Catheter Days29
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Catheter Associated Urinary Tract Infections (ICU + select Wards): Observed Cases0
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Catheter Associated Urinary Tract Infections (ICU + select Wards): Predicted Cases0.013
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Central Line Associated Bloodstream Infection (ICU + select Wards): Observed Cases0
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Central Line Associated Bloodstream Infection (ICU + select Wards): Predicted Cases0.009
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Central Line Associated Bloodstream Infection: Number of Device Days15
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Clostridium Difficile (C.Diff): Observed Cases0
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Clostridium Difficile (C.Diff): Patient Days983
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
Clostridium Difficile (C.Diff): Predicted Cases0.218
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
MRSA Bacteremia: Observed Cases0
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
MRSA Bacteremia: Patient Days983
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
MRSA Bacteremia: Predicted Cases0.018
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
SSI - Colon Surgery: Number of Procedures1
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
SSI - Colon Surgery: Observed Cases0
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07
SSI - Colon Surgery: Predicted Cases0.022
CMS Healthcare Associated Infections 2026-04-28 · 2026-05-07

How timely and effective is care at Ascension Seton Southwest?

CMS publishes 7 timely and effective care measures for Ascension Seton Southwest, each chained to its source row and reporting period Q2 2026.

Appropriate care for severe sepsis and septic shock82%
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Average (median) time all patients spent in the emergency department before leaving from the visit, including psychiatric/mental health patients and patients who were transferred to another facility. A lower number of minutes is better142
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Average (median) time patients spent in the emergency department before being transferred to another facility. A lower number of minutes is better282
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Average (median) time patients spent in the emergency department before leaving from the visit, excluding patients transferred to another facility or psychiatric care/mental health patients. A lower number of minutes is better134
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Healthcare workers given influenza vaccination73%
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Severe Sepsis 3-Hour Bundle91%
CMS Timely and Effective Care 2026-04-28 · 2026-05-07
Venous Thromboembolism Prophylaxis96%
CMS Timely and Effective Care 2026-04-28 · 2026-05-07

How does Fonteum cover hospital quality data?

Fonteum indexes quality data from 23 federal source families, including all six CMS Care Compare facility programs. Each CCN is keyed to its primary CMS dataset — every field traced to a source row and reporting period.

Facility typeCCNsSource
Hospitals6,019CMS Care Compare
Home Health12,392CMS hah8-mnua
Hospice6,943CMS yc9t-dgbk
Dialysis7,557CMS 23ew-n7w9
ASC5,611CMS 4jcv-atw7
IRF / LTACH1,538CMS CC (data-only)
40,060 total CCN-keyed facilities (6 program types) · CMS Care CompareCMS Care Compare →

CMS Care Compare · 6 facility types · data.cms.gov · US Government Work

How does Fonteum connect this hospital to its sources?

Ascension Seton Southwest (CCN 450865) is identified across 6 CMS Care Compare datasets published on data.cms.gov. Every field on this page is chained to its source dataset and row.

450865CMS Complicadata.cms.gov

Trace this CCN across 23 federal datasets →

How is this hospital’s data sourced and attested?

Each field on this page is sourced from 6 CMS Care Compare datasets published on data.cms.gov — US Government Works. Fonteum re-publishes each value with a provenance record identifying the federal source, release date, and redistribution basis.

  1. Source acquisition — download the CMS Care Compare files (6 datasets) from data.cms.gov.
  2. Entity resolution — key every row to the hospital’s CMS Certification Number (CCN 450865).
  3. Field projection — extract the fields shown on this page.
  4. Quality checks — drop rows CMS suppresses or marks not available.
  5. Chain attestation — sign each field into the Fonteum provenance graph.
Source: CMS Complications and Deaths 2026-04-28·Snapshot: 2026-05-07·Method: hospital-detail/v1·ID: CCN 450865

Read the full Fonteum provenance methodology or browse the 23 federal source families behind every page.

Which CMS datasets back this page?

  • CMS Complications and Deaths 2026-04-28 · archived copy
    Centers for Medicare & Medicaid Services · US Government Work
  • Medicare.gov Care Compare — Ascension Seton Southwest
    Centers for Medicare & Medicaid Services · US Government Work
  • CMS HCAHPS Patient Survey 2026-04-28
    Centers for Medicare & Medicaid Services · US Government Work
  • CMS Healthcare Associated Infections 2026-04-28
    Centers for Medicare & Medicaid Services · US Government Work
  • CMS Hospital General Information 2026-04-28
    Centers for Medicare & Medicaid Services · US Government Work
  • CMS Timely and Effective Care 2026-04-28
    Centers for Medicare & Medicaid Services · US Government Work
  • CMS Unplanned Hospital Visits 2026-04-28
    Centers for Medicare & Medicaid Services · US Government Work

Frequently asked questions

What is the CMS overall star rating for Ascension Seton Southwest?
CMS has not published an overall star rating for Ascension Seton Southwest in the current Care Compare snapshot. A rating is assigned only when a hospital reports enough measures across the five CMS measure groups to be scored, so smaller or specialty facilities are often unrated.
Who owns Ascension Seton Southwest?
Ascension Seton Southwest is classified by CMS as "Voluntary non-profit - Private". Ownership type is reported by the hospital to CMS and published in the Hospital General Information dataset; it describes the controlling entity, not the quality of care, which Fonteum reports separately and traces to each source row.
How many CMS quality measures does Fonteum track for Ascension Seton Southwest?
Fonteum publishes 98 CMS quality measures for Ascension Seton Southwest across 6 groups — patient experience (hcahps), mortality, readmissions, complications and patient safety, healthcare-associated infections, timely and effective care. Every measure is a separate provenance claim signed to the CMS dataset, reporting period, and source row it was asserted from, and is hover-traceable on this page.
Where does Ascension Seton Southwest's quality data come from?
Ascension Seton Southwest's data is drawn directly from 6 primary CMS Care Compare datasets published on data.cms.gov, including patient survey, mortality, readmission, complication, infection, and timely-care files. Fonteum re-publishes each value with a chained 14-field provenance record rather than an aggregated score.
What does CMS Certification Number 450865 identify?
The CMS Certification Number (CCN) 450865 is the federal identifier Medicare assigns to Ascension Seton Southwest. It is unique, dated, and federally issued, and it links this hospital across every CMS dataset — cost reports, Care Compare quality files, and the Provider of Services file — which is how Fonteum joins Ascension Seton Southwest's records.
Does Ascension Seton Southwest provide emergency services?
Yes. CMS records that Ascension Seton Southwest provides emergency services, per the Hospital General Information dataset as of Q2 2026. Emergency-service status indicates the hospital operates an emergency department; it is reported by the hospital to CMS and chained to its source row on this page.

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Ascension Seton Southwest is a Medicare-certified hospital identified by CMS Certification Number 450865. Data sourced from the CMS Complications and Deaths 2026-04-28 (data.cms.gov), a US Government Work. Methodology · Report an error · Medicare.gov

Compliance posture

Methodology · Corrections log · Editorial policy