Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Trident Psychological Services

Clinical Psychologist in East Providence, RI · enumerated 2017 · authorized official Darren Holowka, Psychologist/Owner.

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

National Provider Identifier

1306358239

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Registry record

Entity type Organization (Type 2)

Legal business name Trident Psychological Services

Practice address 172 Taunton Ave Ste 208, East Providence, RI, 02914

Phone (401) 450-0729

Fax (401) 537-1830

Enumeration date Nov 1, 2017

Last updated in NPPES Nov 1, 2017

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Darren Holowka

Title Psychologist/Owner

Phone (401) 450-0729

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-11-01. Verify at npiregistry.cms.hhs.gov.

Where is Trident Psychological Services located?

The practice location on file with NPPES is in East Providence, RI.

Providers at this address

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Darren Holowka Clinical Psychologist · East Providence, RI NPI 1104187251

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-01.