Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cassie Marie Tjaden

Licensed Practical Nurse in Sioux Falls, SD · enumerated 2025.

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

National Provider Identifier

1972468312

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Registry record

Entity type Individual (Type 1)

Name Cassie Marie Tjaden

Sex Female

Practice address Sioux Falls, SD, 57105

Phone (605) 336-3230

Enumeration date Dec 18, 2025

Last updated in NPPES Dec 18, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License P010130 (SD) Primary

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 Cassie Tjaden?

The National Provider Identifier (NPI) for Cassie Tjaden is 1972468312, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cassie Tjaden practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-18.