NPI Portal NPI Lookup & Verification

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

Marshfield Clinic

Federally Qualified Health Center (FQHC) in Marshfield, WI · enumerated 2010 · authorized official David Simenstad, Medical Director Reimbursement.

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

National Provider Identifier

1265763809

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Marshfield Clinic
Other name <Unavail>
Parent organization Marshfield Clinic
Practice address 1000 N. Oak Ave., Marshfield, WI, 54449
Enumeration date Jan 21, 2010
Last updated in NPPES Mar 8, 2010

Taxonomy & classification

261QF0400X Federally Qualified Health Center (FQHC) Ambulatory Health Care Facilities · License 8962 (WI) Primary
332B00000X Durable Medical Equipment & Medical Supplies Suppliers · License 8962 (WI) Secondary

Authorized official

Name David Simenstad
Title Medical Director Reimbursement

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-03-08. Verify at npiregistry.cms.hhs.gov.
Where is Marshfield Clinic located?
The practice location on file with NPPES is in Marshfield, WI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-08.