MADELINE BRENNAN NURSE PRACTITIONER
NPI 1558069427
Nurse Practitioner - Family in New York, NY
About Madeline Brennan Nurse Practitioner NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MADELINE BRENNAN NURSE PRACTITIONER (NPI 1558069427) is an individual family provider in New York, New York, licensed in New York (F351455-01) and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS, is affiliated with Luminis Health Anne Arundel Medical Center, Inc, and is a graduate of Other (2022).
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 and accepts Medicare assignment
Madeline Brennan Nurse Practitioner is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Madeline Brennan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chestertown, MD 21620
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1558865287 (District of Columbia)
- 794 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Luminis Health Anne Arundel Medical Center, Inc
Acute Care Hospitals · Annapolis, MDNyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Madeline Brennan's NPI number?
The NPI number for Madeline Brennan is 1558069427. It was assigned to this individual provider in the NPPES registry on February 21, 2023.
Where is Madeline Brennan located?
Madeline Brennan practices at 317 E 34th St, New York, NY 10016. The listed phone number is (212) 263-8134.
What is Madeline Brennan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Madeline Brennan enrolled in Medicare?
Yes. Madeline Brennan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Madeline Brennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Madeline Brennan reassigns Medicare benefits to 2 organizations: Luminis Health Medical Group, LLC (Chestertown, MD) and New York University (Boynton Beach, FL). 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 Madeline Brennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Madeline Brennan affiliated with any hospitals?
According to CMS data, Madeline Brennan is affiliated with Luminis Health Anne Arundel Medical Center, Inc and Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Madeline Brennan was last updated on February 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Madeline Brennan, NURSE PRACTITIONER · NPI 1558069427
Family physician in New York, New York. Individual provider, active in the CMS NPPES registry since February 21, 2023.
## Identity
- **NPI:** 1558069427 (Entity type: Individual)
- **Enumerated:** February 21, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F351455-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 317 E 34TH ST, New York, NY 10016-4974
- **Phone:** (212) 263-8134
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Luminis Health Medical Group, LLC (NPI 1841561701, Chestertown, MD); New York University (NPI 1285826438, Boynton Beach, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** February 21, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1558069427) · Data from the CMS NPPES public registry.