Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Western Laboratories

Anatomic Pathology & Clinical Pathology Physician in Alameda, CA · enumerated 2006 · authorized official Elizabeth Treynor, Managing Partner.

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

National Provider Identifier

1689636797

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Registry record

Entity type Organization (Type 2)

Legal business name Western Laboratories

Other name <Unavail>

Practice address 2070 Clinton Ave, Alameda, CA, 94501

Phone (510) 814-4305

Enumeration date Apr 4, 2006

Last updated in NPPES Apr 12, 2017

Taxonomy & classification

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Elizabeth Treynor

Title Managing Partner

Phone (510) 814-4305

Other identifiers

Identifier	Type	State	Issuer
GR0014622	Medicaid	CA	-

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-04-12. Verify at npiregistry.cms.hhs.gov.

Where is Western Laboratories located?

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

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-12.