NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Robert Dale Gillespie, M.S.

Social Worker in Sun City, AZ · enumerated 2005 · practices at Arrowhead Behavioral Health.

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

National Provider Identifier

1942299011

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Registry record

Entity type Individual (Type 1)
Name Mr. Robert Dale Gillespie
Credential M.S.
Sex Male
Practice address 9865 W Bell Rd, Sun City, AZ, 85351
Phone (623) 876-1246
Fax (623) 933-5463
Enumeration date Oct 20, 2005
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License LISAC-10767 (AZ) Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License M-1878 (NM) Primary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License LMFT-0256 (AZ) Secondary

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Robert Gillespie?
Robert Gillespie is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.