NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Comprehensive Behavior Development LLC

Behavior Analyst in Elmhurst, IL · enumerated 2020 · authorized official Ellen Karalis, Executive Director/Owner.

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

National Provider Identifier

1285258483

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Comprehensive Behavior Development LLC
Other name <Unavail>
Practice address 956 S Prospect Ave, Elmhurst, IL, 60126
Enumeration date Jun 3, 2020
Last updated in NPPES Sep 21, 2020

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

Authorized official

Name Ellen Karalis
Title Executive Director/Owner

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

Who is the authorized official for Comprehensive Behavior Development LLC?
NPPES lists Ellen Karalis (Executive Director/Owner) as the authorized official for this organization.
What is the NPI number for Comprehensive Behavior Development LLC?
The NPI for Comprehensive Behavior Development LLC is 1285258483, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-21.