Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Legacy Clinical Consultants

Q: What is the NPI number for Legacy Clinical Consultants?

The NPI for Legacy Clinical Consultants is 1497823900, a Type 2 (organization) record in the CMS NPPES registry.

Mental Health Counselor in Lisle, IL · enumerated 2006 · authorized official Anne Frentzos, Licensed Clinical Professional Coun.

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

National Provider Identifier

1497823900

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Registry record

Entity type Organization (Type 2)

Legal business name Legacy Clinical Consultants

Practice address 3033 Ogden Ave, Suite 210, Lisle, IL, 60532

Phone (630) 527-1664

Enumeration date Dec 1, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Anne Frentzos

Title Licensed Clinical Professional Coun

Phone (630) 527-1664

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 the NPI number for Legacy Clinical Consultants?

The NPI for Legacy Clinical Consultants is 1497823900, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Legacy Clinical Consultants?

NPPES lists Anne Frentzos (Licensed Clinical Professional Coun) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.