Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Jadwiga Kretowicz, RN, FNP

Individual provider Registered Nurse · NPI 1730581893

Jadwiga Kretowicz, RN, FNP is a Nurse Practitioner in Greenwich, Connecticut. Qualified in 2023, 3 years ago. Practices with Yale University, a 2,618-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
3
Licensed in
CT, NY
In the registry since
2014
Specialties on file
3
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

77 Lafayette Pl
Greenwich, CT 06830-5437
Phone: (203) 863-3700
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 193 Hamilton Ave Apt 10, Greenwich, CT 06830-6105 — (845) 825-6269

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 13044 (CT)
Registered Nurse Taxonomy 163W00000X · Licence 682463 (NY)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence F353717-01 (NY)

Record details

NPI number1730581893
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , FNP
Sole proprietorYes
NPI enumeratedSeptember 20, 2014
Last updated in NPPESJuly 29, 2025
Certification dateJuly 29, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Greenwich