Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marcos Perez, LCSW
Clinical Social Worker in Niles, IL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285402529
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Registry record
Entity type Individual (Type 1)
Name Marcos Perez
Credential LCSW
Sex Male
Practice address 999 Civic Center Dr Fl 3, Niles, IL, 60714
Phone (847) 588-8486
Enumeration date Dec 15, 2023
Last updated in NPPES May 22, 2026
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 150106629 (IL) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149027547 (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.
Frequently asked questions
Is NPI 1285402529 active?
Yes, as of the latest NPPES snapshot, NPI 1285402529 is active (record last updated 2026-05-22).
How do I verify Marcos Perez's NPI record?
Cross-check NPI 1285402529 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Sharon Rosman Clinical Social Worker · Niles, IL NPI 1982374500 Hannah Kane Clinical Social Worker · Niles, IL NPI 1659028371 Jessica Espinosa Clinical Social Worker · Niles, IL NPI 1356078323 Maria Escobar Clinical Social Worker · Niles, IL NPI 1164113320 Kelly Francis Social Worker · Niles, IL NPI 1942154976
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-22.