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W. Mack Bartels, Psy.D. and Associates

Clinical Child & Adolescent Psychologist in Harriman, NY · enumerated 2017 · authorized official William Bartels, Psychologist.

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

National Provider Identifier

1316488067

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Registry record

Entity type Organization (Type 2)
Legal business name W. Mack Bartels, Psy.D. and Associates
Practice address 144 Route 17m, Harriman, NY, 10926
Phone (845) 395-0066
Fax (888) 894-4861
Enumeration date Mar 14, 2017
Last updated in NPPES Mar 14, 2017

Taxonomy & classification

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 016948-1 (NY) Primary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 043475 (NY) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 022780-R (NY) Secondary

Authorized official

Name William Bartels
Title Psychologist
Phone (914) 805-3094

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 W. Mack Bartels, Psy.D. and Associates?
W. Mack Bartels, Psy.D. and Associates is registered in NPPES as a Clinical Child & Adolescent Psychologist (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 2017-03-14.