Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariane Alesha Alaina Willis-Smith

Clinical Social Worker in El Cajon, CA · enumerated 2019 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1215593462

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Registry record

Entity type Individual (Type 1)

Name Ariane Alesha Alaina Willis-Smith

Sex Female

Practice address 1630 E Main St, El Cajon, CA, 92021

Phone (877) 496-0450

Enumeration date May 14, 2019

Last updated in NPPES Sep 22, 2023

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 9485 (CA) Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 96392 (CA) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 115426 (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

What is the NPI number for Ariane Willis-Smith?

The National Provider Identifier (NPI) for Ariane Willis-Smith is 1215593462, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ariane Willis-Smith practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-22.