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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

SAGIS, PLLC
NPI 1548549066
Pathology - Anatomic Pathology & Clinical Pathology in Houston, TX

Active since August 15, 2011CLIA Certified · 5 labs
4131 DIRECTORS ROW, 4131 DIRECTORS ROW, HOUSTON, TX 77092(877) 697-2447(855) 697-2447 Get Directions Write a Review

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

Record update history: Jul 23, 2026, Nov 10, 2020, Oct 22, 2020 and 2 more (5 updates tracked since 2018).

About Sagis, Pllc NPPES

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

SAGIS, PLLC (NPI 1548549066) is a healthcare organization registered as an anatomic pathology & clinical pathology in Houston, Texas and active in the NPI registry since August 2011. The organization holds 5 active CLIA laboratory certificates and lists Howard Martin, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1548549066
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NameSAGIS, PLLC
Location Address4131 DIRECTORS ROW, 4131 DIRECTORS ROWHouston, TX 77092-8703
Mailing Address4131 Directors Row, 4131 Directors RowHouston, TX 77092-8703 · (877) 697-2447 · Fax (855) 697-2447
Phone(877) 697-2447
Fax(855) 697-2447
Organization SubpartNo
Authorized OfficialHoward MartinAuthorized Official · (877) 697-2447
Enumeration DateAugust 15, 2011
Last NPPES UpdateJuly 23, 20265 updates tracked since enumeration
NPPES CertifiedJuly 23, 2026
✔ NPI 1548549066 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
4131 DIRECTORS ROW, Houston, TX 77092
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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 6

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 45D2032918

Sagis, PLLC · Houston, TX
Active · expires Jul 30, 2027
CLIA Number45D2032918
Laboratory TypeIndependent
Certificate Effective DateJuly 31, 2025
Certificate Expiration DateJuly 30, 2027
Laboratory DirectorDr. Howard L. Martin
Laboratory Phone(877) 697-2447
Laboratory LocationSagis, PLLC4131 Directors Row, Houston, TX 77092
CLIA data matches this NPI record on: Address 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 Compliance 45D2286014

Sagis, PLLC · Flower Mound, TX
Active · expires Apr 25, 2028
CLIA Number45D2286014
Laboratory TypeIndependent
Certificate Effective DateApril 26, 2026
Certificate Expiration DateApril 25, 2028
Laboratory DirectorMark R. Matthews
Laboratory Phone(877) 697-2447
Laboratory LocationSagis, PLLC424 Bridgewater Place, Flower Mound, TX 75028
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 45D2143892

Sagis PLLC · San Antonio, TX
Active · expires May 14, 2027
CLIA Number45D2143892
Laboratory TypeIndependent
Certificate Effective DateMay 15, 2025
Certificate Expiration DateMay 14, 2027
Laboratory DirectorDalton R. Scott
Laboratory Phone(877) 697-2447
Laboratory LocationSagis PLLC8055 West Avenue Suite 105, San Antonio, TX 78213
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 45D2306649

Sagis, PLLC · Houston, TX
Active · expires Nov 13, 2026
CLIA Number45D2306649
Laboratory TypeIndependent
Certificate Effective DateNovember 14, 2024
Certificate Expiration DateNovember 13, 2026
Laboratory DirectorThomas M. Wheeler
Laboratory Phone(877) 697-2447
Laboratory LocationSagis, PLLC1315 St Joseph Pkwy, Ste 1208, Houston, TX 77002
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 45D2241177

Sagis, PLLC Memorial Hermann Surgical Hospital Kingwood · Kingwood, TX
Active · expires Oct 12, 2026
CLIA Number45D2241177
Laboratory TypeFrozen Section Laboratory
Certificate Effective DateOctober 13, 2024
Certificate Expiration DateOctober 12, 2026
Laboratory DirectorThomas Wheeler
Laboratory Phone(877) 697-2447
Laboratory LocationSagis, PLLC Memorial Hermann Surgical Hospital Kingwood300 Kingwood Medical Drive, Ste 100, Kingwood, TX 77339
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Certificate of Compliance 45D2209751

Sagis, PLLC · Sugar Land, TX
Expired · Jul 18, 2026
CLIA Number45D2209751
Laboratory TypeFrozen Section
Certificate Effective DateJuly 19, 2024
Certificate Expiration DateJuly 18, 2026
Laboratory DirectorThomas M. Wheeler
Laboratory Phone(877) 697-2447
Laboratory LocationSagis, PLLC16906 Southwest Freeway Ste I132, Sugar Land, TX 77479
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Other Providers at the Same Location NPPES 13

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

DR. MARK R MATTHEWS M.D.
Pathology (Anatomic Pathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
AMBER LANAE SMITH M.D.
Pathology (Dermatopathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
NICOLE REUSSER BENDER M.D.
Dermatology (Dermatopathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
DR. HOWARD L MARTIN III MD
Pathology (Dermatopathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
DR. JASON GREGORIO MD
Pathology (Anatomic Pathology & Clinical Pathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
EDUARDO A RODRIGUEZ M.D.
Dermatology (Dermatopathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
GABRIEL G OAXACA M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447
DR. RAJESH YALAMANCHILI M.D.
Dermatology (Dermatopathology)
4131 DIRECTORS ROW
HOUSTON, TX 77092
Harris County (877) 697-2447

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 Sagis, PLLC's NPI number?

The NPI number for Sagis, PLLC is 1548549066. It was assigned to this organization in the NPPES registry on August 15, 2011.

Where is Sagis, PLLC located?

Sagis, PLLC is located at 4131 Directors Row 4131 Directors Row, Houston, TX 77092. The listed phone number is (877) 697-2447.

What is Sagis, PLLC's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Does Sagis, PLLC hold CLIA laboratory certificates?

Yes. 5 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.

What insurance does Sagis, PLLC accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list Sagis, PLLC 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 Sagis, PLLC was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.