WESTWATER DIAGNOSTICS PLLC
NPI 1417647819
Clinical Medical Laboratory in Houston, TX

Active since May 09, 2023CLIA 45D2250813 · Certificate of Compliance
407 E 25TH ST, HOUSTON, TX 77008(713) 559-6929 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Westwater Diagnostics Pllc NPPES

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

WESTWATER DIAGNOSTICS PLLC (NPI 1417647819), doing business as Westwater Diagnostics Llc, is a healthcare organization registered as a clinical medical laboratory in Houston, Texas and active in the NPI registry since May 2023. The organization holds a CLIA Certificate of Compliance certificate valid through October 4, 2026 and lists Mhair Dekmezian, Authorizing Official, as its authorized official.

NPPES Registry Identity

NPI1417647819
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameWESTWATER DIAGNOSTICS PLLC
Location Address407 E 25TH STHouston, TX 77008-2305
Mailing Address407 E 25th StHouston, TX 77008-2305 · (713) 559-6929
Organization SubpartYes
Authorized OfficialMhair DekmezianAuthorizing Official · (713) 559-6929
Enumeration DateMay 9, 2023
Last NPPES UpdateFebruary 9, 2026
NPPES CertifiedFebruary 9, 2026
NPI 1417647819 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
Definition

(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.

407 E 25TH ST, Houston, TX 77008

Other Names 1

Former Legal Business NameWestwater Diagnostics Llc

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 Compliance 45D2250813

Westwater Diagnostics PLLC · Houston, TX
Active · expires Oct 4, 2026
CLIA Number45D2250813
Laboratory TypeIndependent
Certificate Effective DateOctober 5, 2024
Certificate Expiration DateOctober 4, 2026
Laboratory DirectorRoupen H. Dekmezian
Laboratory Phone(832) 303-0810
Laboratory LocationWestwater Diagnostics PLLC407 E 25th St, Houston, TX 77008
CLIA data matches this NPI record on: Address Name
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

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

Pathology (Anatomic Pathology & Clinical Pathology)
407 E 25TH ST
HOUSTON, TX 77008

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 Westwater Diagnostics PLLC's NPI number?

The NPI number for Westwater Diagnostics PLLC is 1417647819. It was assigned to this organization in the NPPES registry on May 9, 2023. The provider was formerly known as Westwater Diagnostics LLC.

Where is Westwater Diagnostics PLLC located?

Westwater Diagnostics PLLC is located at 407 E 25th St, Houston, TX 77008. The listed phone number is (713) 559-6929.

What is Westwater Diagnostics PLLC's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

Does Westwater Diagnostics PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 45D2250813) is associated with this NPI, valid through October 4, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Westwater Diagnostics PLLC was last updated on February 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.