Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Darrell Brent Johnson Sr., MSW

Social Worker in Stockton, CA · enumerated 2007.

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

National Provider Identifier

1578681334

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Registry record

Entity type Individual (Type 1)

Name Mr. Darrell Brent Johnson Sr.

Credential MSW

Sex Male

Practice address 1414 N California St Fl 2, Stockton, CA, 95202

Phone (209) 468-2377

Fax (209) 468-8024

Enumeration date Mar 27, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 13295 (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.

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Frequently asked questions

How do I verify Darrell Johnson's NPI record?

Cross-check NPI 1578681334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1578681334 active?

Yes, as of the latest NPPES snapshot, NPI 1578681334 is active (record last updated 2007-07-08).

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Jessica Vasquez Day Training/Habilitation Specialist · Stockton, CA NPI 1114194560 Karina Bavery Marriage & Family Therapist · Stockton, CA NPI 1477891679 Victoria Flores Day Training/Habilitation Specialist · Stockton, CA NPI 1518394915 Antonio Gutierrez Clinical Social Worker · Stockton, CA NPI 1073929824 Reyna Rodriguez Clinical Social Worker · Stockton, CA NPI 1114402047 Lauren Barajas Clinical Social Worker · Stockton, CA NPI 1154893683 Yulisa Rivas-Olivares Clinical Social Worker · Stockton, CA NPI 1801445085 Shaun Gepley Professional Counselor · Stockton, CA NPI 1164030771

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.