Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lisa Walpert, F.N.P.

Pediatric Nurse Practitioner in Lake Forest, CA · enumerated 2008.

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

National Provider Identifier

1558547547

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Registry record

Entity type Individual (Type 1)

Name Lisa Walpert

Credential F.N.P.

Sex Female

Practice address 23321 El Toro Rd, Suites F&G, Lake Forest, CA, 92630

Phone (949) 858-1100

Enumeration date Jan 21, 2008

Last updated in NPPES Jan 21, 2008

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 382713 (CA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1558547547 active?

Yes, as of the latest NPPES snapshot, NPI 1558547547 is active (record last updated 2008-01-21).

How do I verify Lisa Walpert's NPI record?

Cross-check NPI 1558547547 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 2008-01-21.