Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alissa Harris

Social Worker in Oakland, CA · enumerated 2024.

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

National Provider Identifier

1255182531

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Registry record

Entity type Individual (Type 1)

Name Alissa Harris

Sex Female

Practice address 390 40th St, Oakland, CA, 94609

Phone (510) 653-5040

Enumeration date Mar 27, 2024

Last updated in NPPES Jun 23, 2026

Taxonomy & licenses

172V00000X Community Health Worker Other Service Providers Secondary

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers 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 Alissa Harris practice?

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

What is the NPI number for Alissa Harris?

The National Provider Identifier (NPI) for Alissa Harris is 1255182531, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-23.