TIERNEY BRENNAN
NPI 1831553023
Nurse Practitioner - Pediatrics in Villanova, PA
About Tierney Brennan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIERNEY BRENNAN (NPI 1831553023) is an individual pediatrics provider in Villanova, Pennsylvania, licensed in Pennsylvania (SP016028) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tierney Brennan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tierney Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60611
- Reassigned Medicare billing, Illinois enrollment
- 826 clinicians in this Medicare group
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 19085 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Tierney Brennan's NPI number?
The NPI number for Tierney Brennan is 1831553023. It was assigned to this individual provider in the NPPES registry on April 13, 2016.
Where is Tierney Brennan located?
Tierney Brennan practices at 464 Inveraray Rd, Villanova, PA 19085. The listed phone number is (630) 640-1167.
What is Tierney Brennan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Tierney Brennan enrolled in Medicare?
Yes. Tierney Brennan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tierney Brennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tierney Brennan reassigns Medicare benefits to Lurie Children's Medical Group Inc (Chicago, 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 Tierney 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 Tierney Brennan was last updated on April 13, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.