Margaret Mahon, APN
NPI 1699580365 · Family Nurse Practitioner · Elizabeth, NJ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Mahon, APN is a Family Nurse Practitioner provider in Elizabeth, NJ (NPI 1699580365).
Provider details
- NPI number
- 1699580365
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 26NJ15176800 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-02-10
- Last updated
- 2025-02-10
- Certified
- 2025-02-10
Frequently asked questions
- What is Margaret Mahon's NPI number?
- Margaret Mahon's National Provider Identifier (NPI) is 1699580365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Mahon's specialty?
- Margaret Mahon is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Mahon located?
- Margaret Mahon's practice location on file with NPPES is 225 Williamson St, Elizabeth, NJ 07202-3625.
- What is Margaret Mahon's phone number?
- The practice phone number listed in the NPPES registry for Margaret Mahon is (908) 994-5000.
- Does Margaret Mahon accept Medicare?
- Margaret Mahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Mahon's NPI active?
- Yes — Margaret Mahon's NPI (1699580365) is active in the NPPES registry as of the last update on 2025-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.