Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Tolchin Psychological Services PC

Health Service Psychologist in West Caldwell, NJ · enumerated 2016 · authorized official Nicholas Tolchin, Owner.

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

National Provider Identifier

1114374550

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Registry record

Entity type Organization (Type 2)

Legal business name Tolchin Psychological Services PC

Practice address 31 Taylor Dr, West Caldwell, NJ, 07006

Phone (973) 228-1394

Enumeration date May 16, 2016

Last updated in NPPES May 16, 2016

Taxonomy & classification

103TH0100X Health Service Psychologist Behavioral Health & Social Service Providers · License 35SI00490200 (NJ) Primary

Authorized official

Name Nicholas Tolchin

Title Owner

Phone (973) 224-5028

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.

Read the full guide → Validate an NPI →

Frequently asked questions

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.

What type of organization is Tolchin Psychological Services PC?

Tolchin Psychological Services PC is registered in NPPES as a Health Service Psychologist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-16.