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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Diana Lynn Barnes, PSYD. LMFT

Marriage & Family Therapist in Sherman Oaks, CA · enumerated 2010 · practices at Jacqueline Steinberg, Lcsw Professional Corporation.

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

National Provider Identifier

1114234804

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Registry record

Entity type Individual (Type 1)
Name Dr. Diana Lynn Barnes
Credential PSYD. LMFT
Sex Female
Practice address Sherman Oaks, CA, 91423
Phone (818) 887-1312
Enumeration date Sep 2, 2010
Last updated in NPPES Dec 30, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC34890 (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 is the NPI number for Diana Barnes?
The National Provider Identifier (NPI) for Diana Barnes is 1114234804, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diana Barnes practice?
The practice location on file with NPPES is in Sherman Oaks, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-30.