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SHARON BRENNAN
NPI 1982003109
Nurse Practitioner - Family in Oak Lawn, IL

Active since August 14, 2014PECOS Enrolled
4440 WEST 95TH STREET, SUITE 2638 OUTPT. PAVILLION, OAK LAWN, IL 60464(708) 684-4382 Get Directions Write a Review

NPPES record last updated: February 16, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Sharon Brennan NPPES

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

SHARON BRENNAN (NPI 1982003109) is an individual family provider in Oak Lawn, Illinois, licensed in Illinois (209-011414) and active in the NPI registry since August 2014. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982003109
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameSHARON BRENNAN
Location Address4440 WEST 95TH STREET, SUITE 2638 OUTPT. PAVILLIONOak Lawn, IL 60464
Mailing Address4440 W 95th St Ste 6409Oak Lawn, IL 60453-2600 · (778) 684-4327 · Fax (708) 520-1875
Phone(708) 684-4382
Sole ProprietorNo
Enumeration DateAugust 14, 2014
Last NPPES UpdateFebruary 16, 2021
NPPES CertifiedFebruary 16, 2021
✔ NPI 1982003109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in IL · 209-011414
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License 209011414 (IL)
Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License 209011414 (IL)
4440 WEST 95TH STREET, Oak Lawn, IL 60464
Open in Google Maps ↗

Other Names 1

Professional Name (2)Mrs. Sharon Marie Brennan N.p.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sharon Brennan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

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

Advocate Health & Hospitals Corporation
Same address
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60464 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Sharon Brennan's NPI number?

The NPI number for Sharon Brennan is 1982003109. It was assigned to this individual provider in the NPPES registry on August 14, 2014. The provider is also known as Mrs. Sharon Marie Brennan N.P..

Where is Sharon Brennan located?

Sharon Brennan practices at 4440 West 95th Street Suite 2638 Outpt. Pavillion, Oak Lawn, IL 60464. The listed phone number is (708) 684-4382.

What is Sharon Brennan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Sharon Brennan enrolled in Medicare?

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

Which organization bills Medicare for Sharon Brennan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sharon Brennan reassigns Medicare benefits to Advocate Health & Hospitals Corporation (Oak Lawn, IL). 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 Sharon 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 Sharon Brennan was last updated on February 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.