NPI Portal NPI Lookup & Verification

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

Quest Diagnostics Clinical Laboratories Inc

Clinical Medical Laboratory in Webster, TX · enumerated 2019 · authorized official Charles Bowles, Vice President.

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

National Provider Identifier

1811557838

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Quest Diagnostics Clinical Laboratories Inc
Parent organization Quest Diagnostics Incorporated
Practice address 500 N Kobayashi, Webster, TX, 77598
Phone (281) 724-7145
Enumeration date Jun 20, 2019
Last updated in NPPES Jun 21, 2019

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Charles Bowles
Title Vice President
Phone (610) 454-6000

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 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.
What type of organization is Quest Diagnostics Clinical Laboratories Inc?
Quest Diagnostics Clinical Laboratories Inc is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-21.