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

Allyson Marie Kornahrens, FNP

Individual provider Family Nurse Practitioner · NPI 1427573138

Allyson Marie Kornahrens, FNP is a Nurse Practitioner in Smithtown, New York. Qualified in 2017, 9 years ago. Practices with Central Suffolk Hospital, a 91-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
9
Licensed in
NY
In the registry since
2017
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

267 E Main St
Smithtown, NY 11787-2874
Phone: (631) 418-8069
Fax: (631) 656-0470
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)

  • 600 Old Country Rd, Garden City, NY 11530-2045 — (516) 357-9000

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 342166 (NY)

Record details

NPI number1427573138
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedAugust 3, 2017
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Central Suffolk Hospital — 91 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Smithtown