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Olga Diamantis Psychotherapy LLC

Adult Mental Health Clinic/Center in Metuchen, NJ · enumerated 2026 · authorized official Olga Diamantis, Owner/Therapist.

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

National Provider Identifier

1871412361

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Registry record

Entity type Organization (Type 2)
Legal business name Olga Diamantis Psychotherapy LLC
Practice address 35 Amboy Ave, Metuchen, NJ, 08840
Phone (848) 200-2118
Enumeration date Jul 10, 2026
Last updated in NPPES Jul 10, 2026

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Olga Diamantis
Title Owner/Therapist
Phone (848) 200-2118

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

What type of organization is Olga Diamantis Psychotherapy LLC?
Olga Diamantis Psychotherapy LLC is registered in NPPES as a Adult Mental Health Clinic/Center (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-10.