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

Maria Isabel Estrada, FNP

Nurse Practitioner in Santa Paula, CA · enumerated 2021.

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

National Provider Identifier

1043885270

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Registry record

Entity type Individual (Type 1)

Name Maria Isabel Estrada

Credential FNP

Sex Female

Practice address Santa Paula, CA, 93060

Phone (805) 933-8556

Fax (805) 933-8581

Enumeration date May 20, 2021

Last updated in NPPES Mar 18, 2025

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95017328 (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

What is the NPI number for Maria Estrada?

The National Provider Identifier (NPI) for Maria Estrada is 1043885270, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maria Estrada practice?

The practice location on file with NPPES is in Santa Paula, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-18.