Mary Mazgaj
NPI 1861743742 · Nurse Practitioner · New York, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Mazgaj is a Nurse Practitioner provider in New York, NY (NPI 1861743742).
Provider details
- NPI number
- 1861743742
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 404621 (NY)
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
13 yrs 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
- 2012-10-02
- Last updated
- 2024-08-07
- Certified
- 2024-08-07
Frequently asked questions
- What is Mary Mazgaj's NPI number?
- Mary Mazgaj's National Provider Identifier (NPI) is 1861743742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Mazgaj's specialty?
- Mary Mazgaj is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Mazgaj located?
- Mary Mazgaj's practice location on file with NPPES is 1199 Park Ave Apt 1c, New York, NY 10128-1712.
- What is Mary Mazgaj's phone number?
- The practice phone number listed in the NPPES registry for Mary Mazgaj is (212) 828-7473.
- Does Mary Mazgaj accept Medicare?
- Mary Mazgaj is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Mazgaj's NPI active?
- Yes — Mary Mazgaj's NPI (1861743742) is active in the NPPES registry as of the last update on 2024-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.