Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Harriette Xaveria Janssen, RRT

Registered Respiratory Therapist in Little Chute, WI · enumerated 2012.

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

National Provider Identifier

1366717068

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Registry record

Entity type Individual (Type 1)

Name Mrs. Harriette Xaveria Janssen

Credential RRT

Sex Female

Practice address 1809 Roosevelt St, Little Chute, WI, 54140

Phone (920) 788-9630

Enumeration date Mar 13, 2012

Last updated in NPPES Mar 13, 2012

Taxonomy & licenses

227900000X Registered Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1210-28 (WI) 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.

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Frequently asked questions

What specialty is Harriette Janssen?

Harriette Janssen is registered in NPPES with the primary taxonomy of Registered Respiratory Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-13.