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

Individual provider School Psychologist · NPI 1063894327

Dr. Breanna Guillem, PSYD is a School Psychologist in Holbrook, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2015
Specialties on file
2
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

321 Dante Ct
Holbrook, NY 11741-3839
Phone: (631) 365-1417
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 024008 (NY)
School Psychologist Taxonomy 103TS0200X

Record details

NPI number1063894327
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedJune 23, 2015
Last updated in NPPESApril 8, 2025
Certification dateApril 8, 2025

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