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

Mrs. Siobhan P Lamasney, FNP

Individual provider Family Nurse Practitioner · NPI 1952582520

Mrs. Siobhan P Lamasney, FNP is a Family Nurse Practitioner in Valley Cottage, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2007
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

695 Sierra Vista Ln
Valley Cottage, NY 10989
Phone: (914) 493-8793
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 334327 (NY)

Record details

NPI number1952582520
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedNovember 23, 2007
Last updated in NPPESNovember 23, 2007

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