Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daisy Romo Diaz

Social Worker in Concord, CA · enumerated 2024.

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

National Provider Identifier

1548099658

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Registry record

Entity type Individual (Type 1)

Name Daisy Romo Diaz

Sex Female

Practice address 2425 Bisso Ln Ste 200, Concord, CA, 94520

Phone (925) 521-5767

Enumeration date Jul 29, 2024

Last updated in NPPES Dec 24, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License ASW132951 (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

How do I verify Daisy Romo Diaz's NPI record?

Cross-check NPI 1548099658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548099658 active?

Yes, as of the latest NPPES snapshot, NPI 1548099658 is active (record last updated 2025-12-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-24.