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

Jean M Cassmer, RN

Individual provider Registered Nurse · NPI 1013249960

Jean M Cassmer, RN is a Registered Nurse in Stony Brook, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2010
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

207 Hallock Rd Ste 201
Stony Brook, NY 11790-3033
Phone: (631) 689-8920
Fax: (631) 689-2194
Show map & directions

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

Specialties & licences

Registered Nurse (primary) Taxonomy 163W00000X · Licence 315577 (NY)

Record details

NPI number1013249960
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN
Sole proprietorYes
NPI enumeratedFebruary 3, 2010
Last updated in NPPESFebruary 3, 2010
Mailing address207 Hallock Rd, Suite 201, Stony Brook, NY 11790-3033

Other providers in Stony Brook