MARGARET R. MAHON APN
NPI 1699580365
Nurse Practitioner - Family in Elizabeth, NJ
About Margaret R. Mahon Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET R. MAHON APN (NPI 1699580365) is an individual family provider in Elizabeth, New Jersey, licensed in New Jersey (26NJ15176800) and active in the NPI registry since February 2025. She is enrolled in Medicare PECOS, is affiliated with Trinitas Regional Medical Center, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Margaret R. Mahon Apn 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 Reassignment
Medicare enrollment records show Margaret Mahon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Elizabeth, NJ 07202
- Reassigned Medicare billing, New Jersey enrollment
- 1,894 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Trinitas Regional Medical Center
Acute Care Hospitals · Elizabeth, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07202 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.
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
ELIZABETH, NJ 07202
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 Margaret Mahon's NPI number?
The NPI number for Margaret Mahon is 1699580365. It was assigned to this individual provider in the NPPES registry on February 10, 2025.
Where is Margaret Mahon located?
Margaret Mahon practices at 225 Williamson St, Elizabeth, NJ 07202. The listed phone number is (908) 994-5000.
What is Margaret Mahon's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Margaret Mahon enrolled in Medicare?
Yes. Margaret Mahon 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 organization bills Medicare for Margaret Mahon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Mahon reassigns Medicare benefits to Barnabas Health Medical Group PC (Elizabeth, NJ). 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 Margaret Mahon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Mahon accept?
Health plans from Oscar Health list Margaret Mahon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Margaret Mahon affiliated with any hospitals?
According to CMS data, Margaret Mahon is affiliated with Trinitas Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Margaret Mahon was last updated on February 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Margaret R. Mahon, APN · NPI 1699580365
Family physician in Elizabeth, New Jersey. Individual provider, active in the CMS NPPES registry since February 10, 2025.
## Identity
- **NPI:** 1699580365 (Entity type: Individual)
- **Enumerated:** February 10, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 26NJ15176800 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 225 WILLIAMSON ST, Elizabeth, NJ 07202-3625
- **Phone:** (908) 994-5000
## 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:** Barnabas Health Medical Group PC (NPI 1841557246, Elizabeth, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** February 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699580365) · Data from the CMS NPPES public registry.