Ascension Seton Williamson is a nonprofit short-term acute care hospital in Round Rock, Texas. Its CMS Certification Number (CCN) is 670041 and its NPI is 1578780870.
CMS Certification Number
National Provider Identifier
Billing entity in payer files
Round Rock, TX
Negotiated rates
In-network rates for clinicians billing at this hospital, from each insurer's price transparency files. Median rate, with the range when more than one contract applies.
| Service | Code | Physician rate | vs. Texas hospitals |
|---|---|---|---|
| Emergency room visit, high severity | 99285 | $251$148–$671 · 18 rates | 83rd percentile · state median $187, mean $214 |
| CT scan, abdomen and pelvis, with contrast | 74177 | $308$278–$350 · 54 rates | 38th percentile · state median $322, mean $347 |
| MRI, brain, with and without contrast | 70553 | $364$311–$817 · 54 rates | 34th percentile · state median $392, mean $566 |
| Colonoscopy, diagnostic | 45378 | $518$188–$706 · 54 rates | 85th percentile · state median $362, mean $415 |
See UnitedHealthcare rates for every billing code at Ascension Seton Williamson
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Every billing code
CPT, HCPCS, MS-DRG and revenue codes, not just the four shown here.
Institutional rates
What each insurer pays the hospital itself, its facility fees.
Professional rates
What insurers pay physicians and clinicians billing here.
Inpatient and outpatient
Per-stay rates for admissions and per-visit rates for outpatient care.
The table above shows physician rates: what the insurer pays clinicians for the service. Facility rates are in the full data. Source: insurer Transparency in Coverage files.
From the hospital's Medicare enrollment record.
From CMS Care Compare. Each measure is compared with the national rate.
CMS overall rating
4 out of 5 stars
0 better8 no different0 worsethan national
1 better3 no different0 worsethan national
2 better6 no different0 worsethan national
Same legal entity in Medicare, or billing insurers under the same tax ID.
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Compare negotiated rates from UHC, Aetna, Cigna and BCBS with the rest of the market, down to the TIN.
Quick answers about Ascension Seton Williamson.
Ascension Seton Williamson's CMS Certification Number (CCN) is 670041. Medicare uses the CCN to identify the hospital in cost reports, quality reporting and claims.
Ascension Seton Williamson bills under National Provider Identifier (NPI) 1578780870.
Ascension Seton Williamson bills insurers under tax ID (EIN) 74-1109643, held by ASCENSION SETON. Insurers publish negotiated rates by tax ID, so this is the number to look up in price transparency files.
Ascension Seton Williamson is enrolled in Medicare as a short-term acute care hospital with nonprofit ownership. Its legal business name is Ascension Seton.
Ascension Seton Williamson is at 201 Seton Pkwy, Round Rock, TX 78665.
Ascension Seton Williamson has a CMS overall star rating of 4 out of 5. CMS bases the rating on mortality, safety, readmission, patient experience and timely care measures.
Yes. Ascension Seton Williamson reports emergency services to CMS.
Enrollment records show how a hospital is registered with Medicare; confirm services and coverage with the hospital directly.