Unilab Corporation

Unilab Corporation is a healthcare organization registered as Clinical Medical Laboratory in Pasadena, CA, holding Type 2 (organization) NPI 1770501728 since 2006. The authorized official on file is Gerald Cartier, Vp of Revenue Services.

✓ Active NPI ✓ Valid NPI checksum Organization subpart

NPI	1770501728
Entity type	Organization (Type 2)
Legal business name	Unilab Corporation
Other name	<Unavail>
Parent organization	Quest Diagnostics Incorporated
Practice address	50 BELLEFONTAINE ST, STE 101, Pasadena, CA, 91105
Phone	6265843007
Enumeration date	2006-07-18
Last updated in NPPES	2012-09-06

Authorized official

Name	Gerald Cartier
Title	Vp of Revenue Services
Phone	4846767000

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
291U00000X	Clinical Medical Laboratory	Primary	05D0555080	CA

Copy-ready billing details

Provider: Unilab Corporation
NPI: 1770501728
Taxonomy: 291U00000X (Clinical Medical Laboratory)
Address: 50 BELLEFONTAINE ST, STE 101, Pasadena, CA, 91105

Providers at this address

NPI	Name	Type	Specialty	Location
1225010077	Robert Loitz	Individual	Pediatric Cardiology Physician	Pasadena, CA
1841272697	Joseph Ahdoot	Individual	Pediatric Cardiology Physician	Pasadena, CA
1821070681	Irving Tessler	Individual	Pediatric Cardiology Physician	Pasadena, CA
1922080779	Lennis Burke	Individual	Pediatric Cardiology Physician	Pasadena, CA
1265414833	Elizabeth Deoliveira	Individual	Pediatric Cardiology Physician	Pasadena, CA
1871578013	Robbin Okamoto	Individual	Dentist	Pasadena, CA
1255317954	Gerilynn Okamoto	Individual	Dentist	Pasadena, CA
1710927025	James Wallstrom	Individual	Internal Medicine Physician	Pasadena, CA

Verify this record

Cross-check NPI 1770501728 against the authoritative CMS record: view Unilab Corporation on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where is Unilab Corporation located?

The practice location on file with NPPES is in Pasadena, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-09-06. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-09-06.