NPI Portal NPI Lookup & Verification

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

Mrs. Debra A Williams, RN

Case Management Registered Nurse in Oshkosh, WI · enumerated 2006.

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

National Provider Identifier

1326007907

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Registry record

Entity type Individual (Type 1)
Name Mrs. Debra A Williams
Credential RN
Sex Female
Practice address Oshkosh, WI, 54901
Enumeration date Mar 21, 2006
Last updated in NPPES Aug 6, 2010

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

Taxonomy & licenses

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 127531-030 (WI) Primary
163WH0200X Home Health Registered Nurse Nursing Service Providers · License 127531-030 (WI) Secondary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
39983000 Medicaid WI -

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

Is NPI 1326007907 active?
Yes, as of the latest NPPES snapshot, NPI 1326007907 is active (record last updated 2010-08-06).
How do I verify Debra Williams's NPI record?
Cross-check NPI 1326007907 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-06.