Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret Olsen Biggar, LLBSW

Social Worker in Traverse City, MI · enumerated 2013.

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

National Provider Identifier

1376884940

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Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret Olsen Biggar

Credential LLBSW

Sex Female

Practice address 105 Hall St Unit A, Traverse City, MI, 49684

Phone (231) 935-3871

Enumeration date Mar 7, 2013

Last updated in NPPES Mar 7, 2013

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 6802087610 (MI) 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 Biggar's NPI record?

Cross-check NPI 1376884940 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1376884940 active?

Yes, as of the latest NPPES snapshot, NPI 1376884940 is active (record last updated 2013-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-07.