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

MS. Siobhan Cassidy, NP

Individual provider Neonatal Nurse Practitioner · NPI 1073521464

MS. Siobhan Cassidy, NP is a Neonatal Nurse Practitioner in Stony Brook, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
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

L8 University Hospital
Stony Brook, NY 11794-0001
Phone: (631) 444-7653
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neonatal Nurse Practitioner (primary) Taxonomy 363LN0000X · Licence F350168-1 (NY)

Record details

NPI number1073521464
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 3, 2006
Last updated in NPPESNovember 4, 2009

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