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

Catherine Zillmann, NPP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1326052333

Catherine Zillmann, NPP is a Psychiatric/Mental Health Nurse Practitioner in Smithtown, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006

Practice location Address checks out

363 Route 111 Ste 103
Smithtown, NY 11787-4750
Phone: (631) 864-9202
Fax: (631) 265-3205
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence F400964-1 (NY)

Record details

NPI number1326052333
Entity typeIndividual (Type 1)
GenderFemale
Credentials NPP
Sole proprietorYes
NPI enumeratedJuly 27, 2006
Last updated in NPPESFebruary 14, 2018

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