Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariel Horvitz, MA IN CLINICAL PSYCH

Psychologist in Evanston, IL · enumerated 2018.

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

National Provider Identifier

1447751995

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Registry record

Entity type Individual (Type 1)

Name Ariel Horvitz

Credential MA IN CLINICAL PSYCH

Sex Female

Practice address 618 Library Pl, Evanston, IL, 60201

Phone (847) 733-4300

Enumeration date Feb 21, 2018

Last updated in NPPES Feb 21, 2018

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers Primary

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 Ariel Horvitz?

Ariel Horvitz is registered in NPPES with the primary taxonomy of Psychologist. 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 2018-02-21.