Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Sara Ostrowski Marsh, LCSW

Clinical Social Worker in Ashland, WI · enumerated 2006.

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

National Provider Identifier

1013020676

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Registry record

Entity type Individual (Type 1)

Name Ms. Sara Ostrowski Marsh

Credential LCSW

Sex Female

Practice address 1635 Maple Ln, Ashland, WI, 54806

Phone (715) 685-5400

Fax (715) 685-5102

Enumeration date Aug 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 2277-123 (WI) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
39676200	Medicaid	WA	-

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 Sara Marsh's NPI record?

Cross-check NPI 1013020676 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1013020676 active?

Yes, as of the latest NPPES snapshot, NPI 1013020676 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.