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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Leann Billau, L.L.M.S.W

Clinical Social Worker in Howell, MI · enumerated 2022.

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

National Provider Identifier

1891415493

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Registry record

Entity type Individual (Type 1)
Name Mrs. Leann Billau
Credential L.L.M.S.W
Sex Female
Practice address 2020 E. Grand River, Suite 104, Howell, MI, 48843
Phone (517) 545-5944
Fax (517) 545-7390
Enumeration date Sep 1, 2022
Last updated in NPPES Sep 6, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6851115110 (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

Is NPI 1891415493 active?
Yes, as of the latest NPPES snapshot, NPI 1891415493 is active (record last updated 2022-09-06).
How do I verify Leann Billau's NPI record?
Cross-check NPI 1891415493 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 2022-09-06.