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

Miss. Dayna Nicole Portnoy, NP

Individual provider General Practice Registered Nurse · NPI 1265476345

Miss. Dayna Nicole Portnoy, NP is a Nurse Practitioner in Wilmette, Illinois. Qualified in 2005, 21 years ago. Accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
21
Licensed in
IL
In the registry since
2006
Specialties on file
2
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

1200 Central Ave Ste 200
Wilmette, IL 60091-2654
Phone: (847) 256-1705
Show map & directions

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

Specialties & licences

General Practice Registered Nurse (primary) Taxonomy 163WG0000X · Licence 041-265829 (IL)
Nurse Practitioner Taxonomy 363L00000X · Licence 209-006098 (IL)

Record details

NPI number1265476345
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESJuly 8, 2009

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount