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

Trimark Physicians Group Inc

Clinical Medical Laboratory in Fort Dodge, IA · enumerated 2005 · authorized official Michael Dewerff, Cfo.

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

National Provider Identifier

1831176536

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Registry record

Entity type Organization (Type 2)

Legal business name Trimark Physicians Group Inc

Other name <Unavail>

Parent organization Trimark Physicians Group Inc

Practice address 800 Kenyon Rd, Fort Dodge, IA, 50501

Phone (515) 573-4141

Enumeration date Dec 23, 2005

Last updated in NPPES Dec 22, 2010

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Michael Dewerff

Title Cfo

Phone (515) 574-6603

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

Where is Trimark Physicians Group Inc located?

The practice location on file with NPPES is in Fort Dodge, IA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-12-22. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-22.