Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alanna Costello, FNP-C

Family Nurse Practitioner in Lake Isabella, CA · enumerated 2020 · practices at Kern River Valley Indian Health Services.

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

National Provider Identifier

1174122741

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Registry record

Entity type Individual (Type 1)

Name Alanna Costello

Credential FNP-C

Sex Female

Practice address 12308 Mountain Mesa Rd, Lake Isabella, CA, 93240

Phone (760) 549-0001

Enumeration date Oct 23, 2020

Last updated in NPPES May 27, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F08220603 (CA) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NPF95021231 (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

Where does Alanna Costello practice?

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

What is the NPI number for Alanna Costello?

The National Provider Identifier (NPI) for Alanna Costello is 1174122741, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Kern River Valley Indian Health Services Community Health Clinic/Center · Lake Isabella, CA NPI 1518705425

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