Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Marnie Louise Hersrud, MSW

Clinical Social Worker in Eau Claire, WI · enumerated 2006.

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

National Provider Identifier

1255446316

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Registry record

Entity type Individual (Type 1)

Name Ms. Marnie Louise Hersrud

Credential MSW

Sex Female

Practice address 2004 Highland Ave, Suite N, Eau Claire, WI, 54701

Phone (715) 835-5915

Fax (715) 835-8112

Enumeration date Aug 20, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1815-123 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
39559200	Medicaid	WI	-
1815-123	Other	WI	LCSW

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 Marnie Hersrud's NPI record?

Cross-check NPI 1255446316 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1255446316 active?

Yes, as of the latest NPPES snapshot, NPI 1255446316 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.