Ascension Seton Williamson
201 Seton Parkway, Round Rock, TX 78664 · Acute care hospital · Emergency room
These are Ascension Seton Williamson's own posted figures from its standard-charges file dated January 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
16 of the services we track have a posted price here. Tap a service to compare it with nearby hospitals. How to read these numbers.
Emergency room
| Service | Cash price | Gross charge | Insurer rates (min – max) |
|---|---|---|---|
| Critical care, first 30 to 74 minutes CPT 99291 | $2,895.84 | $8,044.00 | $224.41 – $8,044.00 |
| Emergency room visit, level 1 (minor) CPT 99281 | $282.33 | $784.25 | $11.12 – $784.25 |
| Emergency room visit, level 2 CPT 99282 | $548.37 | $1,523.25 | $11.12 – $1,523.25 |
| Emergency room visit, level 3 (moderate) CPT 99283 | $731.43 | $2,031.75 | $11.12 – $2,031.75 |
| Emergency room visit, level 4 CPT 99284 | $1,170.00 | $3,250.00 | $200.00 – $3,250.00 |
| Emergency room visit, level 5 (most severe) CPT 99285 | $2,007.00 | $5,575.00 | $200.00 – $5,575.00 |
Heart
| Service | Cash price | Gross charge | Insurer rates (min – max) |
|---|---|---|---|
| ECG tracing only (no interpretation) CPT 93005 | $180.45 | $501.25 | $8.06 – $290.73 |
| Echocardiogram (heart ultrasound), complete with Doppler CPT 93306 | $2,389.50 | $6,637.50 | $141.68 – $3,849.75 |
| Left heart catheterization CPT 93452 | $4,941.00 | $13,725.00 | $610.21 – $13,357.00 |
| Left heart catheterization with coronary angiogram CPT 93458 | $11,946.15 | $33,183.75 | $739.86 – $28,206.19 |
Pain and spine
| Service | Cash price | Gross charge | Insurer rates (min – max) |
|---|---|---|---|
| Large joint injection or drainage (knee, shoulder, hip) CPT 20610 | $478.71 | $1,329.75 | $20.55 – $412.22 |
| Lower back spinal injection (epidural), with imaging guidance CPT 62323 | $1,946.07 | $5,405.75 | $99.21 – $1,675.78 |
| Lower back spinal injection (epidural), without imaging CPT 62322 | $922.68 | $2,563.00 | $85.91 – $969.15 |
Sleep
| Service | Cash price | Gross charge | Insurer rates (min – max) |
|---|---|---|---|
| Home sleep apnea test CPT 95806 | $454.86 | $1,263.50 | $113.11 – $745.47 |
| Sleep study with CPAP titration CPT 95811 | $6,514.11 | $18,094.75 | $551.82 – $10,675.90 |
| Sleep study, overnight in a sleep lab CPT 95810 | $6,229.62 | $17,304.50 | $524.25 – $10,209.66 |
Cash price: the hospital's posted discounted price for people paying themselves. Gross charge: its list price before any discount. Insurer rates: the lowest and highest rates it says it negotiated with any insurer. When the file lists a service on several rows, this page shows one (the facility row for the usual setting); the service's own page lists every row.