Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ingrid Jackson, FNP-C

Nurse Practitioner in Montclair, CA · enumerated 2026.

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

National Provider Identifier

1558294421

Verified

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Registry record

Entity type Individual (Type 1)

Name Ingrid Jackson

Credential FNP-C

Sex Female

Practice address Montclair, CA, 91763

Phone (909) 447-0405

Enumeration date Jun 8, 2026

Last updated in NPPES Jun 8, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163WH0200X Home Health Registered Nurse Nursing Service Providers · License 95039768 (CA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95039768 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95039768 (CA) Secondary

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95039768 (CA) Secondary

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 95039768 (CA) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95039768 (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

Is NPI 1558294421 active?

Yes, as of the latest NPPES snapshot, NPI 1558294421 is active (record last updated 2026-06-08).

How do I verify Ingrid Jackson's NPI record?

Cross-check NPI 1558294421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-08.