Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah Kay Tietjen, FNP

Midwife in Milwaukee, WI · enumerated 2007.

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

National Provider Identifier

1124178454

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Registry record

Entity type Individual (Type 1)

Name Deborah Kay Tietjen

Credential FNP

Sex Female

Practice address 3353 N Mlk Dr, Milwaukee, WI, 53212

Phone (414) 372-1000

Enumeration date Jan 11, 2007

Last updated in NPPES Dec 4, 2016

Taxonomy & licenses

176B00000X Midwife Other Service Providers · License 74685032 (WI) Primary

163W00000X Registered Nurse Nursing Service Providers · License 74685 (WI) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 470 (WI) Secondary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

How do I verify Deborah Tietjen's NPI record?

Cross-check NPI 1124178454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1124178454 active?

Yes, as of the latest NPPES snapshot, NPI 1124178454 is active (record last updated 2016-12-04).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-04.