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

William Christiana, PSYD

Individual provider Psychologist · NPI 1356732895

William Christiana, PSYD is a Psychologist in Chatham, New Jersey. Licensed in New York. Registered with an NPI since 2015.

Licensed in
NY
In the registry since
2015
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

10 Parrott Mill Rd Ste B
Chatham, NJ 07928-2744
Phone: (973) 635-2444
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 020992 (NY)

Record details

NPI number1356732895
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedFebruary 5, 2015
Last updated in NPPESMay 21, 2025
Certification dateMay 21, 2025

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