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GONZALES HEALTHCARE SYSTEMS
NPI 1013916287
Clinic/Center - Rural Health in Gonzales, TX

Active since July 19, 2005CLIA 45D2177686 · Waiver
1110 N SARAH DEWITT DR, GONZALES, TX 78629(830) 672-7581(830) 672-2401 Get Directions Write a Review

NPPES record last updated: July 23, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 3, 2023, Oct 21, 2022, Sep 11, 2020 and 3 more (6 updates tracked since 2017).

About Gonzales Healthcare Systems NPPES

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

GONZALES HEALTHCARE SYSTEMS (NPI 1013916287), doing business as Sievers Medical Clinic, is a healthcare organization registered as a rural health in Gonzales, Texas and active in the NPI registry since July 2005. The organization holds a CLIA Waiver certificate valid through January 15, 2028, maintains 3 additional practice locations, and lists Brandon Anzaldua, Ceo Administrator, as its authorized official.

NPPES Registry Identity

NPI1013916287
Entity TypeOrganization
Primary Taxonomy261QR1300X
Legal Business NameGONZALES HEALTHCARE SYSTEMS
Location Address1110 N SARAH DEWITT DRGonzales, TX 78629-3311
Mailing AddressPo Box 587Gonzales, TX 78629-0587 · (830) 672-7581 · Fax (830) 672-2401
Phone(830) 672-7581
Fax(830) 672-2401
Organization SubpartYes
Authorized OfficialBrandon AnzalduaCeo Administrator · (830) 672-7581
Enumeration DateJuly 19, 2005
Last NPPES UpdateJuly 23, 20256 updates tracked since enumeration
NPPES CertifiedJuly 23, 2025
✔ NPI 1013916287 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyClinic/Center · Rural HealthAmbulatory Health Care Facilities
Taxonomy Code261QR1300X
Also ListedFamily MedicineTaxonomy 207Q00000X · License 000130 (TX)
Also ListedPediatricsTaxonomy 208000000X · License 000103 (TX)
1110 N SARAH DEWITT DR, Gonzales, TX 78629
Open in Google Maps ↗

Other Names 1

Doing Business AsSievers Medical Clinic

Secondary Practice Locations 3

Location 1207 West 7th StreetShiner, TX 77984 · Phone (361) 239-5015 · Fax (361) 672-3035
Location 21300 Captain Albert Martin TrailGonzales, TX 78629 · Phone (830) 672-8502 · Fax (830) 672-3035
Location 31605 N Sarah DeWitt DrGonzales, TX 78629-2700 · Phone (830) 672-7581

Other Identifiers 3

Medicaid130781102TX
Medicaid130781104TX
Medicaid130781103TX

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA

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 Waiver 45D2177686

Gonzales Healthcare Systems Dba Sievers Medical Clinic-Shiner · Shiner, TX
Active · expires Jan 15, 2028
CLIA Number45D2177686
Laboratory TypeRural Health Clinic
Certificate Effective DateJanuary 16, 2026
Certificate Expiration DateJanuary 15, 2028
Laboratory DirectorChristopher Walker
Laboratory Phone(361) 239-5015
Laboratory LocationGonzales Healthcare Systems Dba Sievers Medical Clinic-Shiner207 West 7th Street, Shiner, TX 77984
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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.

DR. KATHLEEN MARY KOERNER D.O.
Surgery
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-8502
GONZALES HEALTHCARE SYSTEMS
Medicare Defined Swing Bed Unit
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-7581
DR. WILLIAM E CRAIG MD
Internal Medicine (Cardiovascular Disease)
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-3845
MR. TODD MICHAEL CRAWFORD PHYSICIAN ASST - C
Physician Assistant
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-8502
VICTORIA EMERGENCY PARTNERS LLC
Emergency Medicine
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-7581
DR. SEAN HATTENBACH M.D.
Family Medicine
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-8502
KAREN FORTUNE
Speech-Language Pathologist
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-7581
STEVEN POTEET
Physical Therapist
1110 N SARAH DEWITT DR
GONZALES, TX 78629
Gonzales County (830) 672-7581

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 Gonzales Healthcare Systems's NPI number?

The NPI number for Gonzales Healthcare Systems is 1013916287. It was assigned to this organization in the NPPES registry on July 19, 2005. The provider is doing business as Sievers Medical Clinic.

Where is Gonzales Healthcare Systems located?

Gonzales Healthcare Systems is located at 1110 N Sarah Dewitt Dr, Gonzales, TX 78629. The listed phone number is (830) 672-7581.

What is Gonzales Healthcare Systems's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Rural Health, with taxonomy code 261QR1300X.

Does Gonzales Healthcare Systems hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D2177686) is associated with this NPI, valid through January 15, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Gonzales Healthcare Systems accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Gonzales Healthcare Systems as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gonzales Healthcare Systems was last updated on July 23, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.