1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Audiologist
  6. NPI Profile

DR. CAROLINE ROSE BRENNAN AUD
NPI 1154184133
Audiologist in Chicago, IL

Active since February 02, 2024
5841 S MARYLAND AVE, CHICAGO, IL 60637(888) 824-0200 Get Directions Write a Review

NPPES record last updated: May 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 13, 2026, Mar 26, 2026 (2 updates tracked since 2026).

About Dr. Caroline Rose Brennan Aud NPPES

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

DR. CAROLINE ROSE BRENNAN AUD (NPI 1154184133) is an individual audiologist in Chicago, Illinois, licensed in Illinois (147.001968) and active in the NPI registry since February 2024. She is a graduate of Other (2023).

NPPES Registry Identity

NPI1154184133
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. CAROLINE ROSE BRENNANCredential: AUD
Location Address5841 S MARYLAND AVEChicago, IL 60637-1443
Mailing Address2727 W Thomas St Apt 1Chicago, IL 60622-6118 · (630) 624-1630
Phone(888) 824-0200
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateFebruary 2, 2024
Last NPPES UpdateMay 13, 20262 updates tracked since enumeration
NPPES CertifiedMay 13, 2026
✔ NPI 1154184133 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 IL · 147.001968
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.
5841 S MARYLAND AVE, Chicago, IL 60637
Open in Google Maps ↗

Other Names 1

Other Name (5)Dr. Callie Rose Brennan Aud

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Caroline Rose Brennan Aud is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466921374
PECOS Enrollment IDI20260520000148

Medicare Billing Reassignments

2

Medicare enrollment records show Caroline Brennan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

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 20

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

DR. DON MARTINEZ M.D.
Radiology (Diagnostic Radiology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 926-8318
ALEXANDRA DUMITRESCU
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
PELEG HOROWITZ
Neurological Surgery
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
SANDEEP GURBUXANI
Pathology (Hematology)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200
DR. NIREN GANDRA M.D.
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-0240
ALLIE DAKROUB MD MS
Internal Medicine
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
SCOTT VASHER MD
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (773) 702-1000
DR. NATHAN CHARLES NOWALK M.D.
Internal Medicine (Pulmonary Disease)
5841 S MARYLAND AVE
CHICAGO, IL 60637
Cook County (888) 824-0200

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 Caroline Brennan's NPI number?

The NPI number for Caroline Brennan is 1154184133. It was assigned to this individual provider in the NPPES registry on February 2, 2024. The provider is also known as Dr. Callie Rose Brennan Aud.

Where is Caroline Brennan located?

Caroline Brennan practices at 5841 S Maryland Ave, Chicago, IL 60637. The listed phone number is (888) 824-0200.

What is Caroline Brennan's specialty?

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

Is Caroline Brennan enrolled in Medicare?

Yes. Caroline Brennan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Caroline Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Caroline Brennan reassigns Medicare benefits to 2 organizations: The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). Each 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 Caroline Brennan'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 Caroline Brennan was last updated on May 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.