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SOUTH TEXAS ANCILLARY SERVICES, LTD
NPI 1063670289
Family Medicine in San Antonio, TX

Active since May 23, 2008CLIA Certified · 3 labs
720 PLEASANTON RD, SAN ANTONIO, TX 78214(210) 921-3800(210) 921-6620 Get Directions Write a Review

NPPES record last updated: May 23, 2008. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About South Texas Ancillary Services, Ltd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SOUTH TEXAS ANCILLARY SERVICES, LTD (NPI 1063670289) is a healthcare organization registered as a family medicine in San Antonio, Texas and active in the NPI registry since May 2008. The organization holds 3 active CLIA laboratory certificates and lists William Gonzaba, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1063670289
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSOUTH TEXAS ANCILLARY SERVICES, LTD
Location Address720 PLEASANTON RDSan Antonio, TX 78214-1306
Mailing Address720 Pleasanton RdSan Antonio, TX 78214-1306 · (210) 921-3800 · Fax (210) 921-6620
Phone(210) 921-3800
Fax(210) 921-6620
Organization SubpartNo
Authorized OfficialWilliam GonzabaPresident/ceo · (210) 921-3800
Enumeration DateMay 23, 2008
✔ NPI 1063670289 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedInternal MedicineTaxonomy 207R00000X
720 PLEASANTON RD, San Antonio, TX 78214
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 3

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Accreditation 45D2084739

South Texas Ancillary Services, Ltd Dba Gonzaba Urgent Care Center NW · San Antonio, TX
Active · expires Jul 27, 2027
CLIA Number45D2084739
Laboratory TypePhysician Office
Certificate Effective DateJuly 28, 2025
Certificate Expiration DateJuly 27, 2027
Laboratory DirectorDr. William T. Gonzaba
Laboratory Phone(210) 921-3800
Laboratory LocationSouth Texas Ancillary Services, Ltd Dba Gonzaba Urgent Care Center NW7219 Culebra Road, San Antonio, TX 78251
CLIA data matches this NPI record on: Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 45D2084711

South Texas Ancillary Services Gonzaba Urgent Care Center Main · San Antonio, TX
Active · expires Jul 13, 2027
CLIA Number45D2084711
Laboratory TypePhysician Office
Certificate Effective DateJuly 14, 2025
Certificate Expiration DateJuly 13, 2027
Laboratory DirectorDr. William T. Gonzaba
Laboratory Phone(210) 921-3800
Laboratory LocationSouth Texas Ancillary Services Gonzaba Urgent Care Center Main711 Pleasanton Road Gonzaba Medical Group, San Antonio, TX 78214
CLIA data matches this NPI record on: Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Certificate of Accreditation 45D2090993

South Texas Ancillary Services Ltd Dba Gonzaba Urgent Care Center Woodlawn · San Antonio, TX
Active · expires Jul 13, 2027
CLIA Number45D2090993
Laboratory TypePhysician Office
Certificate Effective DateJuly 14, 2025
Certificate Expiration DateJuly 13, 2027
Laboratory DirectorDr. William T. Gonzaba
Laboratory Phone(210) 921-3800
Laboratory LocationSouth Texas Ancillary Services Ltd Dba Gonzaba Urgent Care Center Woodlawn1499 Hillcrest Drive, San Antonio, TX 78228
CLIA data matches this NPI record on: Name Phone
This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANISSA JUAREZ RAMIREZ P.A.
Physician Assistant
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
GMG HEALTH SYSTEMS ASSOCIATES PA
Family Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
MORRIS LEE BEARD PA
Physician Assistant
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
GMG HEALTH SYSTEMS, PA
Clinic/Center (Primary Care)
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
CYNTHIA MERCEDES VILLANUEVA RAMOS MD
Family Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
MRS. LEDYENSKA BAEZ BALLESTEROS PA
Physician Assistant (Medical)
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
DR. CARLA INES ACRA DESPRADEL M.D.
Internal Medicine
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800
DR. LUIS C. ANAYA HOYOS M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
720 PLEASANTON RD
SAN ANTONIO, TX 78214
Bexar County (210) 921-3800

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is South Texas Ancillary Services, Ltd's NPI number?

The NPI number for South Texas Ancillary Services, Ltd is 1063670289. It was assigned to this organization in the NPPES registry on May 23, 2008.

Where is South Texas Ancillary Services, Ltd located?

South Texas Ancillary Services, Ltd is located at 720 Pleasanton Rd, San Antonio, TX 78214. The listed phone number is (210) 921-3800.

What is South Texas Ancillary Services, Ltd's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Does South Texas Ancillary Services, Ltd hold CLIA laboratory certificates?

Yes. 3 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for South Texas Ancillary Services, Ltd was last updated on May 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.