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

Horizon Psychology of Ny, PLLC

Organization Community/Behavioral Health Agency · NPI 1578137121

Horizon Psychology of Ny, PLLC is a Community/Behavioral Health Agency in Port Jefferson, New York. Registered with an NPI since 2021.

In the registry since
2021
Specialties on file
2
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1000 Main St Ste G
Port Jefferson, NY 11777-2250
Phone: (631) 209-7917
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Community/Behavioral Health Agency (primary) Taxonomy 251S00000X
Mental Health Clinic/Center (Including Community Mental Health Center) Taxonomy 261QM0801X

Record details

NPI number1578137121
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jennifer Donnelly-Greenberg — Clinical Psychologist · (631) 209-7917
NPI enumeratedMay 18, 2021
Last updated in NPPESJanuary 30, 2024
Certification dateJanuary 30, 2024
Mailing address1000 Main St Ste G, Port Jefferson, NY 11777-2250

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