11/100
#2,359 nationally
Ascension Seton Williamson
201 Seton Parkway, Round Rock, TX 78664 · (512) 324-0000
Among the highest charge markups in the country
For every $1 of care Medicare actually paid for here, Ascension Seton Williamson billed $9.78 in list charges. That gap does not change a Medicare patient's bill — but it is where an uninsured or out-of-network bill starts.
- Charge-to-payment
- 9.8x
- volume-weighted across all its priced work
- Procedures priced
- 69
- inpatient and outpatient combined
- Rank in TX
- #156
- lower markup ranks higher
- CMS quality stars
- 4/5
- shown for context, not in the grade
How this grade was reached
Each component is scored against every other U.S. hospital in the same federal files, so the grade is a position in the country, not a pass mark we invented.
Better than 8% of U.S. hospitals.
Better than 8% of U.S. hospitals.
Better than 14% of U.S. hospitals.
Better than 22% of U.S. hospitals.
What this hospital treats most
The ten procedures it billed Medicare for most often, with its charge beside the national middle.
| Procedure | Patients | Charged | Actually paid | vs national |
|---|---|---|---|---|
|
Comprehensive Observation Services
APC 8011 · Hospital outpatient visit |
384 | $35,507 | $2,459 | +83% |
|
Sepsis (severe)
MS-DRG 871 · Inpatient stay |
206 | $122,155 | $14,549 | +87% |
|
Level 5 Musculoskeletal Procedures
APC 5115 · Hospital outpatient visit |
114 | $193,551 | $11,833 | +210% |
|
Level 1 Endovascular Procedures
APC 5191 · Hospital outpatient visit |
76 | $36,921 | $2,910 | +46% |
|
Heart Failure (severe)
MS-DRG 291 · Inpatient stay |
74 | $81,189 | $10,097 | +87% |
|
Respiratory Infection (severe)
MS-DRG 177 · Inpatient stay |
63 | $119,742 | $13,162 | +118% |
|
Heart Attack (severe)
MS-DRG 280 · Inpatient stay |
57 | $113,451 | $12,533 | +85% |
|
Pneumonia (severe)
MS-DRG 193 · Inpatient stay |
55 | $83,730 | $11,245 | +80% |
|
Level 4 Musculoskeletal Procedures
APC 5114 · Hospital outpatient visit |
55 | $79,311 | $6,440 | +99% |
|
Level 1 Laparoscopy and Related Services
APC 5361 · Hospital outpatient visit |
45 | $61,318 | $5,194 | +75% |
Where its charges run furthest above the national middle
Only procedures it performed at least eleven times, so a single unusual case cannot produce the headline.
| Procedure | Charged | Actually paid | vs national |
|---|---|---|---|
|
Level 5 Musculoskeletal Procedures
APC 5115 · Hospital outpatient visit |
$193,551 | $11,833 | +210% |
|
Level 3 Endovascular Procedures
APC 5193 · Hospital outpatient visit |
$185,598 | $9,896 | +174% |
|
Hip or Knee Replacement (without major complications)
MS-DRG 470 · Inpatient stay |
$216,831 | $14,421 | +171% |
|
Heart Catheter Procedure (without major complications)
MS-DRG 322 · Inpatient stay |
$258,100 | $14,473 | +154% |
|
Level 2 Pacemaker and Similar Procedures
APC 5222 · Hospital outpatient visit |
$94,246 | $7,648 | +149% |
|
Level 6 Musculoskeletal Procedures
APC 5116 · Hospital outpatient visit |
$194,835 | $16,742 | +135% |
|
Level 2 Musculoskeletal Procedures
APC 5112 · Hospital outpatient visit |
$25,809 | $1,447 | +130% |
|
Spinal Fusion Except Cervical without Major Complications
MS-DRG 460 · Inpatient stay |
$316,950 | $36,987 | +119% |
Where it charges least relative to everyone else
| Procedure | Charged | Actually paid | vs national |
|---|---|---|---|
|
Level 2 Upper GI Procedures
APC 5302 · Hospital outpatient visit |
$10,737 | $1,713 | -9% |
|
Level 2 Excision/ Biopsy/ Incision and Drainage
APC 5072 · Hospital outpatient visit |
$11,186 | $1,425 | +11% |
|
Digestive Disorder (severe)
MS-DRG 391 · Inpatient stay |
$61,234 | $10,149 | +19% |
|
Trauma to the Skin, Subcutaneous Tissue and Breast without Major Complications
MS-DRG 605 · Inpatient stay |
$49,929 | $7,586 | +22% |
|
Back Problems (severe)
MS-DRG 551 · Inpatient stay |
$85,383 | $12,899 | +23% |
|
Fluid and Electrolyte Disorder (severe)
MS-DRG 640 · Inpatient stay |
$60,786 | $10,193 | +25% |
|
Level 3 Excision/ Biopsy/ Incision and Drainage
APC 5073 · Hospital outpatient visit |
$22,821 | $2,506 | +29% |
|
Level 5 ENT Procedures
APC 5165 · Hospital outpatient visit |
$44,755 | $5,272 | +30% |
What this page cannot tell you
- It is not your bill. These are averages across Medicare patients. What you pay depends on your insurance, your plan's negotiated rate and your own case.
- It is not a quality rating. A hospital with a high markup may be excellent, and one with a low markup may not be. We checked: across every U.S. hospital, markup and the CMS quality star rating barely move together.
- A charge is not a cost. Hospitals do not collect their list charges from insured patients. The number matters because it is the opening figure on an uninsured or out-of-network bill.
- Ask for the real number. Every U.S. hospital must publish a machine-readable price file and give you a written good-faith estimate on request.