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Personalis, Inc.

Clinical Medical Laboratory in Menlo Park, CA · enumerated 2014 · authorized official John West, Ceo.

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

National Provider Identifier

1871998096

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Registry record

Entity type Organization (Type 2)
Legal business name Personalis, Inc.
Practice address 1330 Obrien Dr, Menlo Park, CA, 94025
Phone (650) 752-1300
Fax (650) 752-1301
Enumeration date Oct 30, 2014
Last updated in NPPES Nov 30, 2021

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License CLF00343226 (CA) Primary

Authorized official

Name John West
Title Ceo
Phone (650) 752-1300

Other identifiers

Identifier Type State Issuer
05D2053444 Other CA CLA

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.

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Frequently asked questions

What is the NPI number for Personalis, Inc.?
The NPI for Personalis, Inc. is 1871998096, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Personalis, Inc.?
NPPES lists John West (Ceo) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-30.