Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret A Beisser, MSW

Social Worker in Waukesha, WI · enumerated 2006.

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

National Provider Identifier

1881761112

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Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret A Beisser

Credential MSW

Sex Female

Practice address 500 Riverview Ave, Waukesha, WI, 53188

Phone (262) 548-7261

Fax (262) 548-7643

Enumeration date Nov 30, 2006

Last updated in NPPES Sep 13, 2007

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 136-122 (WI) 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

How do I verify Margaret Beisser's NPI record?

Cross-check NPI 1881761112 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881761112 active?

Yes, as of the latest NPPES snapshot, NPI 1881761112 is active (record last updated 2007-09-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-13.