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

Mrs. Sammie M Matthews

Day Training/Habilitation Specialist in Port Huron, MI · enumerated 2006.

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

National Provider Identifier

1477666964

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sammie M Matthews

Sex Female

Practice address Port Huron, MI, 48060

Phone (810) 982-3042

Fax (810) 982-3042

Enumeration date Aug 17, 2006

Last updated in NPPES Oct 15, 2009

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

Taxonomy & licenses

373H00000X Day Training/Habilitation Specialist Nursing Service Related Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Sammie Matthews's NPI record?

Cross-check NPI 1477666964 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477666964 active?

Yes, as of the latest NPPES snapshot, NPI 1477666964 is active (record last updated 2009-10-15).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-15.