Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Malgorzata Krystyna Mierzejewski, MSN, RN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1750858288

Malgorzata Krystyna Mierzejewski, MSN, RN, FNP-BC is a Nurse Practitioner in East Northport, New York. Qualified in 2018, 8 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
8
Licensed in
NY
In the registry since
2018
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

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Practice location Address checks out

7 Pulaski Rd
East Northport, NY 11731-2442
Phone: (631) 261-3322
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence F343483-1 (NY)

Record details

NPI number1750858288
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , FNP-BC
Sole proprietorNo
NPI enumeratedNovember 2, 2018
Last updated in NPPESNovember 16, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in East Northport