NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Nancy Lynn Thomas, LISW

Clinical Social Worker in Atlantic, IA · enumerated 2006 · practices at Cass County Case Management.

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

National Provider Identifier

1326019860

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Registry record

Entity type Individual (Type 1)
Name Ms. Nancy Lynn Thomas
Credential LISW
Sex Female
Practice address 1408 E 10th St, Atlantic, IA, 50022
Fax (712) 243-2688
Enumeration date Feb 1, 2006
Last updated in NPPES Jul 16, 2010

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 03827 (IA) 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 Nancy Thomas?
Nancy Thomas is registered in NPPES with the primary taxonomy of Clinical 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 2010-07-16.