Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Houston Neurodiagnostics, LLC

Q: What type of organization is Houston Neurodiagnostics, LLC?

Houston Neurodiagnostics, LLC is registered in NPPES as a Physiological Laboratory (its primary provider taxonomy).

Physiological Laboratory in Irving, TX · enumerated 2014 · authorized official Charles Alvarez, Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558770727

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Houston Neurodiagnostics, LLC

Parent organization Alliance Family of Companies, LLC

Practice address 4545 Fuller Dr Ste 200, Irving, TX, 75038

Phone (281) 936-0996

Fax (866) 279-4704

Enumeration date Aug 12, 2014

Last updated in NPPES Jun 2, 2026

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Secondary

261QS1200X Sleep Disorder Diagnostic Clinic/Center Ambulatory Health Care Facilities Secondary

293D00000X Physiological Laboratory Laboratories Primary

Authorized official

Name Charles Alvarez

Title Ceo

Phone (469) 995-8416

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Houston Neurodiagnostics, LLC?

Houston Neurodiagnostics, LLC is registered in NPPES as a Physiological Laboratory (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-02.