Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1356120687 Individual Practitioner Female Practitioner

Julissa Perez

Behavior Analyst • Darien, IL

Professional Overview & Biography Verified Profile Summary

Julissa Perez is a registered healthcare professional specializing in Behavior Analyst in Darien, IL. Practice services are available at 8201 CASS AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

8201 Cass Ave

Darien, IL 605615314

Telephone 2243443235
Associated Practice Facility / Clinic
🏢 By Your Side, Llc Facility NPI 1922233923

Specialty Benchmarks & Practice Insights

Comparative analytics for Behavior Analyst in Darien, IL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 13.3 Yrs
Regional Practice Density
11 Specialists

Practicing in Darien, IL (3105 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-09-04
Behavior Analyst Primary Specialty

NUCC Taxonomy Code: 103K00000X

State License IL 152.002926

A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners
Kiara Johnson

Behavior Technician

NPI 1023994795
Madison Mauss

Behavior Technician

NPI 1164394128
William Doyle

Behavior Technician

NPI 1497647291
Kylie Nagel

Behavior Technician

NPI 1538051347
Jack Potempa

Behavior Technician

NPI 1932085602

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
📍
Updated Practice Location September 04, 2025

Registered at 8201 CASS AVE, DARIEN, IL 605615314 (Tel: 2243443235)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 04, 2025

Behavior Analyst (License #152.002926 in IL)

NPI Profile Active September 26, 2023

NPI status registered as active in NPPES database

📍
Updated Practice Location September 26, 2023

Registered at 8200 185TH ST # B, TINLEY PARK, IL 604879232 (Tel: 7085800440)

📍
Updated Business Mailing Address September 26, 2023

Registered at 8201 CASS AVE, DARIEN, IL 605615314 (Tel: 6305905571)

👤
Provider Name / Credentials Updated September 26, 2023

Recorded as JULISSA PEREZ

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 26, 2023

Behavior Technician

🟢
Initial NPI Registration & Enumeration September 26, 2023

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1356120687
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 26, 2023
Last Update: September 04, 2025
Sole Proprietor: No

Mailing Address

8201 Cass Ave

Darien, IL 605615314

Phone: 6305905571

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.