Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Marcus A Ferdinand, ACSW

Social Worker in Antioch, CA · enumerated 2008.

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

National Provider Identifier

1184894115

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Registry record

Entity type Individual (Type 1)

Name Mr. Marcus A Ferdinand

Credential ACSW

Sex Male

Practice address 2818 Winding Ln, Antioch, CA, 94531

Phone (575) 518-9092

Enumeration date Mar 5, 2008

Last updated in NPPES Dec 13, 2023

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License 108063 (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

Is NPI 1184894115 active?

Yes, as of the latest NPPES snapshot, NPI 1184894115 is active (record last updated 2023-12-13).

How do I verify Marcus Ferdinand's NPI record?

Cross-check NPI 1184894115 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-13.