NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra R Nowosiolski, LCSW

Clinical Social Worker in Valley Village, CA · enumerated 2020.

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

National Provider Identifier

1750978474

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Sandra R Nowosiolski
Credential LCSW
Sex Female
Practice address 12553 Killion St, Valley Village, CA, 91607
Enumeration date Dec 29, 2020
Last updated in NPPES Aug 11, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Secondary
171M00000X Case Manager/Care Coordinator Other Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 110814 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

What is the NPI number for Sandra Nowosiolski?
The National Provider Identifier (NPI) for Sandra Nowosiolski is 1750978474, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sandra Nowosiolski practice?
The practice location on file with NPPES is in Valley Village, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-11.