ELIZABETH NIFFENEGGER SLP
NPI 1669893061
Speech-Language Pathologist in Denver, CO

Q: What is Elizabeth Niffenegger's NPI number?

The NPI number for Elizabeth Niffenegger is 1669893061. It was assigned to this individual provider in the NPPES registry on January 2, 2014. The provider is also known as Elizabeth Kellogg Slp.

Q: What is Elizabeth Niffenegger's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Active since January 02, 2014

6200 E CORNELL AVE, DENVER, CO 80222(303) 902-3462 Get Directions Write a Review

NPPES record last updated: March 16, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 16, 2025, Dec 1, 2022, Dec 15, 2015 (3 updates tracked since 2015).

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About Elizabeth Niffenegger Slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELIZABETH NIFFENEGGER SLP (NPI 1669893061) is an individual speech-language pathologist provider in Denver, Colorado and active in the NPI registry since January 2014.

NPPES Registry Identity

NPI1669893061

Entity TypeIndividualFemale

Primary Taxonomy235Z00000X

Provider Legal NameELIZABETH NIFFENEGGERCredential: SLP

Location Address6200 E CORNELL AVEDenver, CO 80222-7013

Mailing Address6200 E Cornell AveDenver, CO 80222-7013 · (303) 902-3462

Phone(303) 902-3462

Sole ProprietorNo

Enumeration DateJanuary 2, 2014

Last NPPES UpdateMarch 16, 20253 updates tracked since enumeration

NPPES CertifiedMarch 16, 2025

✔ NPI 1669893061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers

Taxonomy Code235Z00000X

Definition

The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

6200 E CORNELL AVE, Denver, CO 80222

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Other Names 1

Former Name (1)Elizabeth Kellogg Slp

Other Identifiers 1

Medicaid62982834CO

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LISA NIFFENEGGER, LLC

Speech-Language Pathologist

6200 E CORNELL AVE
DENVER, CO 80222

Denver County (303) 902-3462

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Elizabeth Niffenegger's NPI number?

The NPI number for Elizabeth Niffenegger is 1669893061. It was assigned to this individual provider in the NPPES registry on January 2, 2014. The provider is also known as Elizabeth Kellogg Slp.

Where is Elizabeth Niffenegger located?

Elizabeth Niffenegger practices at 6200 E Cornell Ave, Denver, CO 80222. The listed phone number is (303) 902-3462.

What is Elizabeth Niffenegger's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

When was this NPI record last updated?

The NPPES record for Elizabeth Niffenegger was last updated on March 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.