Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Brownstone Psychological Associates, LLC

Clinical Psychologist in Durham, CT · enumerated 2012 · authorized official Debra Nelson, President (Co-Owner).

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

National Provider Identifier

1386993574

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Registry record

Entity type Organization (Type 2)

Legal business name Brownstone Psychological Associates, LLC

Practice address 199 Main Street, Durham, CT, 06422

Phone (860) 788-3231

Fax (888) 844-4036

Enumeration date Sep 3, 2012

Last updated in NPPES Sep 3, 2013

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 003123 (CT) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 002321 (CT) Secondary

Authorized official

Name Debra Nelson

Title President (Co-Owner)

Phone (860) 788-3231

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 Brownstone Psychological Associates, LLC?

Brownstone Psychological Associates, LLC is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Providers at this address

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Debra Nelson Clinical Psychologist · Durham, CT NPI 1851640148

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-03.