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Arrow of Change Counseling Services LLC

Addiction (Substance Use Disorder) Counselor in West Haven, CT · enumerated 2019 · authorized official Donna Underhill, Clinician.

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

National Provider Identifier

1083178289

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Registry record

Entity type Organization (Type 2)

Legal business name Arrow of Change Counseling Services LLC

Practice address 5 Bayview Pl Fl 1, West Haven, CT, 06516

Phone (475) 422-4361

Enumeration date Jan 22, 2019

Last updated in NPPES Feb 7, 2019

Taxonomy & classification

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Donna Underhill

Title Clinician

Phone (475) 422-4361

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 Arrow of Change Counseling Services LLC?

Arrow of Change Counseling Services LLC is registered in NPPES as a Addiction (Substance Use Disorder) Counselor (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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Donna Underhill Addiction (Substance Use Disorder) Counselor · West Haven, CT NPI 1558872119

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-07.