Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Carol Joan Singer, LCSW

Clinical Social Worker in Berkeley, CA · enumerated 2007 · practices at Jewish Family & Community Services East Bay.

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

National Provider Identifier

1679764922

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Registry record

Entity type Individual (Type 1)

Name Ms. Carol Joan Singer

Credential LCSW

Sex Female

Practice address 2484 Shattuck Ave, Berkeley, CA, 94704

Phone (510) 704-7475

Fax (510) 704-7494

Enumeration date Aug 1, 2007

Last updated in NPPES Mar 11, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS11742 (CA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
6331	Medicaid	CA	-

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 Carol Singer's NPI record?

Cross-check NPI 1679764922 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1679764922 active?

Yes, as of the latest NPPES snapshot, NPI 1679764922 is active (record last updated 2025-03-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-11.