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KATHERINE A GROON AU.D.
NPI 1750778544
Audiologist in Denver, CO

Active since April 20, 2015
100 COOK ST STE 304, DENVER, CO 80206(720) 848-2820(720) 494-3107 Get Directions Write a Review

NPPES record last updated: August 14, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 14, 2020, Mar 21, 2018 (2 updates tracked since 2018).

About Katherine A Groon Au.d. NPPES

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

KATHERINE A GROON AU.D. (NPI 1750778544) is an individual audiologist in Denver, Colorado, licensed in Colorado (AUD.0000796) and active in the NPI registry since April 2015.

NPPES Registry Identity

NPI1750778544
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameKATHERINE A GROONCredential: AU.D.
Location Address100 COOK ST STE 304Denver, CO 80206-5339
Mailing Address1925 Mountain View AveLongmont, CO 80501-3128 · (720) 494-3120 · Fax (720) 494-3107
Phone(720) 848-2820
Fax(720) 494-3107
Sole ProprietorYes
Enumeration DateApril 20, 2015
Last NPPES UpdateAugust 14, 20202 updates tracked since enumeration
NPPES CertifiedAugust 14, 2020
✔ NPI 1750778544 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in CO · AUD.0000796
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
100 COOK ST STE 304, Denver, CO 80206
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine A Groon Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Katherine Groon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Poudre Valley Medical Group, LLC
48 mi
General Practice
2695 ROCKY MOUNTAIN AVE, SUITE 150
Loveland, CO 80538
  • Reassigned Medicare billing, Colorado enrollment
  • 2,596 clinicians in this Medicare group
NPI 1366763260 (970) 624-4420

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 6

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

UNIVERSITY PHYSICIANS, INCORPORATED
Otolaryngology
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9407
POUDRE VALLEY MEDICAL GROUP, LLC
Audiologist
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9407
MIRANDA ADAMCZAK AUD
Audiologist
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9407
DR. STACEY CAITLIN KOLB AU.D.
Audiologist
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9407
MRS. KRISTA MARIE IANNUZZI AU.D
Audiologist
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9435
DR. MARISA BRESLIN AUD
Audiologist
100 COOK ST STE 304
DENVER, CO 80206
Denver County (720) 516-9407

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 Katherine Groon's NPI number?

The NPI number for Katherine Groon is 1750778544. It was assigned to this individual provider in the NPPES registry on April 20, 2015.

Where is Katherine Groon located?

Katherine Groon practices at 100 Cook St Ste 304, Denver, CO 80206. The listed phone number is (720) 848-2820.

What is Katherine Groon's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Katherine Groon enrolled in Medicare?

Yes. Katherine Groon is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Katherine Groon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Groon reassigns Medicare benefits to Poudre Valley Medical Group, LLC (Loveland, CO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Groon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Katherine Groon was last updated on August 14, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.