Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dafna Sher, ACSW

Social Worker in Simi Valley, CA · enumerated 2023.

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

National Provider Identifier

1710670146

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Registry record

Entity type Individual (Type 1)

Name Dafna Sher

Credential ACSW

Sex Female

Practice address 1227 E Los Angeles Ave, Simi Valley, CA, 93065

Phone (805) 582-4075

Enumeration date May 31, 2023

Last updated in NPPES Nov 14, 2023

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 115988 (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

What specialty is Dafna Sher?

Dafna Sher is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-14.