Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maurine Thieszen, R.D.

Registered Dietitian in Lake City, IA · enumerated 2007.

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

National Provider Identifier

1588706261

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Registry record

Entity type Individual (Type 1)

Name Maurine Thieszen

Credential R.D.

Sex Female

Practice address 1301 W Main St, Lake City, IA, 51449

Phone (712) 464-3171

Fax (712) 464-3269

Enumeration date Feb 12, 2007

Last updated in NPPES Jan 12, 2012

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 00509 (IA) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD 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 Maurine Thieszen practice?

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

What is the NPI number for Maurine Thieszen?

The National Provider Identifier (NPI) for Maurine Thieszen is 1588706261, 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 2012-01-12.