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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Geraldine Lazar, RN, PHN

Case Management Registered Nurse in Martinez, CA · enumerated 2007 · practices at Contra Costa County.

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

National Provider Identifier

1518148907

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Registry record

Entity type Individual (Type 1)
Name Geraldine Lazar
Credential RN, PHN
Sex Female
Practice address 595 Center Ave, Suite 150, Martinez, CA, 94553
Phone (510) 231-8575
Fax (925) 313-6188
Enumeration date Nov 14, 2007
Last updated in NPPES Nov 14, 2007

Taxonomy & licenses

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 144886 (CA) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

Is NPI 1518148907 active?
Yes, as of the latest NPPES snapshot, NPI 1518148907 is active (record last updated 2007-11-14).
How do I verify Geraldine Lazar's NPI record?
Cross-check NPI 1518148907 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-14.