Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julissa Perez

Behavior Analyst in Darien, IL · enumerated 2023.

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

National Provider Identifier

1356120687

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Registry record

Entity type Individual (Type 1)

Name Julissa Perez

Sex Female

Practice address 8201 Cass Ave, Darien, IL, 60561

Phone (224) 344-3235

Enumeration date Sep 26, 2023

Last updated in NPPES Sep 4, 2025

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 152.002926 (IL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Julissa Perez practice?

The practice location on file with NPPES is in Darien, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Julissa Perez?

The National Provider Identifier (NPI) for Julissa Perez is 1356120687, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-04.