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Thalassa Psychological Services, P.L.L.C.

Psychologist in Sleepy Hollow, NY · enumerated 2023 · authorized official Alexandra Electris, Co-Founder and Senior Psychologist.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1952096836

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Registry record

Entity type Organization (Type 2)
Legal business name Thalassa Psychological Services, P.L.L.C.
Practice address 245 N Broadway Ste 208, Sleepy Hollow, NY, 10591
Phone (914) 488-6432
Enumeration date Apr 7, 2023
Last updated in NPPES Apr 16, 2024

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers Primary
104100000X Social Worker Behavioral Health & Social Service Providers Secondary
221700000X Art Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

Authorized official

Name Alexandra Electris
Title Co-Founder and Senior Psychologist
Phone (917) 969-8118

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Thalassa Psychological Services, P.L.L.C. located?
The practice location on file with NPPES is in Sleepy Hollow, NY.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2024-04-16. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-16.