CLIA lab
CLIA 45D1076416: Ascension Seton Williamson-Laboratory
Round Rock, TX. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 45D1076416 belongs to Ascension Seton Williamson-Laboratory in Round Rock, TX.
Certificate of Accreditation, effective July 31, 2026, expires July 30, 2028.
Active in the CMS Provider of Services file posted October 16, 2026.
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
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Certificate
- Certificate type
- Certificate of Accreditation
- Certificate effective
- July 31, 2026
- Certificate expiration
- July 30, 2028
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- November 14, 2007
- Facility type
- Hospital
- Ownership (control type)
- Religious affiliation
- Lab classification
- CLIA laboratory
- Accrediting organizations
- The Joint Commission
- Directly affiliated labs
- 1
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Lab and contact
- CLIA number
- 45D1076416
- Lab name
- Ascension Seton Williamson-Laboratory
- Address
- 201 Seton Parkway- 1st Floor, Round Rock, TX 78665
- Phone
- (512) 324-9999
- Fax
- (512) 380-7537
Annual test volume the lab reported
- Waived tests
- 5,312
- Tests under accreditation
- 2,055,807
- Total
- 2,061,119
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
Affiliated CLIA numbers
Other labs in Round Rock, TX
- Advanced Pain CareCertificate of Waiver, Physician office45D1092689
- Adventist Home Health ServicesCertificate of Waiver, Home health agency45D1066531
- Agape Pregnancy Resource CenterCertificate of Waiver, Other45D2116587
- Ally Medical Emergency Room-Round RockCertificate of Accreditation, Other45D2146574
- Ambe Care Home Health, LLCCertificate of Waiver, Home health agency45D2292221
- Amg Seton Primary Care WilliamsonCertificate of Waiver, Physician office45D2120007
- Amg Seton Women's Health-Round RockCertificate for Provider-Performed Microscopy Procedures, Physician office45D0504424
- Any Lab Test NowCertificate of Waiver, Other45D2007532
- Apicon Home Health Agency IncCertificate of Waiver, Home health agency45D0990554
- Arc Greenlawn SpecialtyCertificate of Waiver, Physician office45D2333675
Related
Questions
What is the CLIA number for Ascension Seton Williamson-Laboratory in Round Rock?
45D1076416, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Ascension Seton Williamson-Laboratory hold?
A Certificate of Accreditation, according to the CMS file.
When does CLIA 45D1076416 expire?
The CMS file lists July 30, 2028 as the certificate expiration date; the certificate took effect July 31, 2026.