South Texas Ancillary Services, Ltd
NPI 1063670289 · Family Medicine Physician · San Antonio, TX
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
South Texas Ancillary Services, Ltd is a Family Medicine Physician organization in San Antonio, TX (NPI 1063670289).
Provider details
- NPI number
- 1063670289
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Gonzaba, President/Ceo(210) 921-3800
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-23
- Last updated
- 2008-05-23
Frequently asked questions
- What is South Texas Ancillary Services, Ltd's NPI number?
- South Texas Ancillary Services, Ltd's National Provider Identifier (NPI) is 1063670289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is South Texas Ancillary Services, Ltd?
- South Texas Ancillary Services, Ltd is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is South Texas Ancillary Services, Ltd located?
- South Texas Ancillary Services, Ltd's practice location on file with NPPES is 720 Pleasanton Rd, San Antonio, TX 78214-1306.
- What is South Texas Ancillary Services, Ltd's phone number?
- The practice phone number listed in the NPPES registry for South Texas Ancillary Services, Ltd is (210) 921-3800.
- Does South Texas Ancillary Services, Ltd accept Medicare?
- South Texas Ancillary Services, Ltd is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for South Texas Ancillary Services, Ltd?
- The authorized official listed on South Texas Ancillary Services, Ltd's NPPES record is William Gonzaba, President/Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is South Texas Ancillary Services, Ltd's NPI active?
- Yes — South Texas Ancillary Services, Ltd's NPI (1063670289) is active in the NPPES registry as of the last update on 2008-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.