Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Namyshaye O. Perrier-Diaz, FNP

Individual provider Family Nurse Practitioner · NPI 1548593163

Mrs. Namyshaye O. Perrier-Diaz, FNP is a Nurse Practitioner in New York, New York. Qualified in 2009, 17 years ago. Practices with Rwjbh Emergency Medicine Associates, LLC, a 807-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
17
Licensed in
NJ, NY
In the registry since
2009
Specialties on file
2
What do these letters mean?
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

462 First Avenue Bellevue Hospital Ctr
New York, NY 10016-9196
Phone: (212) 562-6561
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)

  • 355 Grand St, Jersey City, NJ 07302-4321 — (732) 937-8939

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 26NJ15024900 (NJ)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 335908 (NY)

Record details

NPI number1548593163
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedSeptember 14, 2009
Last updated in NPPESApril 24, 2024
Certification dateApril 24, 2024

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Rwjbh Emergency Medicine Associates, Llc — 807 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients28
Services billed 38 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $198 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Rwjbh Emergency Medicine Associates, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 807 clinicians in the practice; 12 are shown here.

Other providers in New York