Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Blaine Brian Westemeyer, M.D.

Family Medicine Physician in Marshalltown, IA · enumerated 2015.

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

National Provider Identifier

1184005357

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Registry record

Entity type Individual (Type 1)

Name Blaine Brian Westemeyer

Credential M.D.

Sex Male

Practice address 3 S 4th Ave, Marshalltown, IA, 50158

Phone (641) 754-5145

Enumeration date Jun 14, 2015

Last updated in NPPES Oct 10, 2018

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 43749 (IA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 does Blaine Westemeyer practice?

The practice location on file with NPPES is in Marshalltown, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Blaine Westemeyer?

The National Provider Identifier (NPI) for Blaine Westemeyer is 1184005357, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-10.