Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Christine Anne Geronimo, NP-C

Nurse Practitioner in Sylmar, CA · enumerated 2016.

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

National Provider Identifier

1639614100

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Registry record

Entity type Individual (Type 1)

Name Mrs. Christine Anne Geronimo

Credential NP-C

Sex Female

Practice address 14445 Olive View Dr, Sylmar, CA, 91342

Phone (818) 224-8576

Enumeration date Dec 20, 2016

Last updated in NPPES May 27, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95004998 (CA) Primary

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 do I verify Christine Anne Geronimo's NPI record?

Cross-check NPI 1639614100 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639614100 active?

Yes, as of the latest NPPES snapshot, NPI 1639614100 is active (record last updated 2025-05-27).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-27.