Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Marshfield Clinic

Q: What is the NPI number for Marshfield Clinic?

The NPI for Marshfield Clinic is 1467641738, a Type 2 (organization) record in the CMS NPPES registry.

Durable Medical Equipment & Medical Supplies in Eau Claire, WI · enumerated 2007 · authorized official David Simenstad, Medical Director Reimbursement.

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

National Provider Identifier

1467641738

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Registry record

Entity type Organization (Type 2)

Legal business name Marshfield Clinic

Other name <Unavail>

Parent organization Marshfield Clinic

Practice address 1002 W Clairemont Ave, Eau Claire, WI, 54701

Phone (715) 858-4694

Enumeration date Oct 23, 2007

Last updated in NPPES May 9, 2008

Taxonomy & classification

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Primary

Authorized official

Name David Simenstad

Title Medical Director Reimbursement

Phone (715) 387-5511

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

What is the NPI number for Marshfield Clinic?

The NPI for Marshfield Clinic is 1467641738, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Marshfield Clinic?

NPPES lists David Simenstad (Medical Director Reimbursement) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-09.