Westwater Diagnostics PLLC in Houston, TX

This location of Westwater Diagnostics bills under NPI 1417647819, an organization record issued on May 9, 2023 with the primary taxonomy Clinical Medical Laboratory. It is one of 2 NPIs registered under this name and one of 2 in Houston; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026

1417647819

Legal name: Westwater Diagnostics PLLC
Entity: Type 2 · organization, a subpart
Parent organization: Westwater Diagnostics PLLC
Primary taxonomy: Clinical Medical Laboratory 291U00000X
Practice location: 407 E 25TH ST, Houston, TX 77008
Phone: 713-559-6929
Enumerated: May 9, 2023
Record updated: Feb 9, 2026
Authorized official: Authorizing Official (title as filed)

Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other Houston NPI

Westwater Diagnostics PLLC3732 GLEN HAVEN BLVD · issued Oct 1, 20201003413139

2 clinicians CMS lists with Westwater Diagnostics in Houston

Mhair Dekmezian, MDAnatomic Pathology & Clinical Pathology Physician1518301613
Roupen Dekmezian, MDAnatomic Pathology & Clinical Pathology Physician1285638668

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 2 Westwater Diagnostics NPIs

Every location registered under this name, in 1 city.

See every location

Checking an organization

Confirm the business with the Texas secretary of state.
Check the HHS-OIG exclusion list for the organization.
Verify each clinician on their own record and the state license search.

Common questions

What does subpart mean?

The organization registered this NPI as a subpart: a part of the organization, such as a location, that bills under its own NPI.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Houston NPI should I use?

Ask the office which NPI it bills under; all 2 Houston NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.