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

Margaret Hazelton, MSW

Social Worker in Wyandotte, MI · enumerated 2007.

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

National Provider Identifier

1225186091

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Registry record

Entity type Individual (Type 1)

Name Margaret Hazelton

Credential MSW

Sex Female

Practice address Wyandotte, MI, 48192

Phone (734) 324-6600

Fax (734) 246-6990

Enumeration date Jan 8, 2007

Last updated in NPPES Mar 3, 2008

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 6801021209 (MI) Primary

Other identifiers

Identifier	Type	State	Issuer
6801021209	Other	MI	LICENSE

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

Is NPI 1225186091 active?

Yes, as of the latest NPPES snapshot, NPI 1225186091 is active (record last updated 2008-03-03).

How do I verify Margaret Hazelton's NPI record?

Cross-check NPI 1225186091 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 2008-03-03.