Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marjorie Diaz Rodriguez, LCSW, BCBA

Behavior Analyst in Arlington Heights, IL · enumerated 2010 · practices at C2act, LLC.

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

National Provider Identifier

1578879433

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Registry record

Entity type Individual (Type 1)

Name Marjorie Diaz Rodriguez

Credential LCSW, BCBA

Sex Female

Practice address 3417 N Kennicott Ave Ste A, Arlington Heights, IL, 60004

Phone (224) 210-6694

Fax (224) 836-5174

Enumeration date Aug 28, 2010

Last updated in NPPES Sep 23, 2019

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149.011093 (IL) Secondary

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-19-37412 (IL) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

Is NPI 1578879433 active?

Yes, as of the latest NPPES snapshot, NPI 1578879433 is active (record last updated 2019-09-23).

How do I verify Marjorie Diaz Rodriguez's NPI record?

Cross-check NPI 1578879433 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-23.