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

Mrs. Jennifer Cassidy, FNP

Individual provider Nurse Practitioner · NPI 1053579524

Mrs. Jennifer Cassidy, FNP is a Nurse Practitioner in Smithtown, New York. Licensed in New York. Registered with an NPI since 2008.

Licensed in
NY
In the registry since
2008
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 →

Practice location Address checks out

260 Middle Country Rd Ste 214
Smithtown, NY 11787-2982
Phone: (631) 265-5050
Fax: (631) 265-3304
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence F334886 (NY)

Record details

NPI number1053579524
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedMay 30, 2008
Last updated in NPPESDecember 1, 2010

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