Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diana Cosajay, MSW
Social Worker in Cicero, IL · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336923184
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Registry record
Entity type Individual (Type 1)
Name Diana Cosajay
Credential MSW
Sex Female
Practice address 5341 W Cermak Rd, Cicero, IL, 60804
Phone (708) 656-6439
Fax (708) 656-6591
Enumeration date Aug 22, 2023
Last updated in NPPES Aug 22, 2023
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1831119767 | Medicaid | IL | - |
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
How do I verify Diana Cosajay's NPI record?
Cross-check NPI 1336923184 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336923184 active?
Yes, as of the latest NPPES snapshot, NPI 1336923184 is active (record last updated 2023-08-22).
Other providers at this practice address
Browse all → Family Service and Mental Health Center of Cicero Mental Health Clinic/Center (Including Community Mental Health Center) · Cicero, IL NPI 1831119767 Katherine Bartholomew Clinical Social Worker · Cicero, IL NPI 1578587077 John Morgan Professional Counselor · Cicero, IL NPI 1336254440 Kathleen Allen Professional Counselor · Cicero, IL NPI 1780795948 Amalia Andrade Social Worker · Cicero, IL NPI 1417040148 Janette Martinez-Lopez Mental Health Counselor · Cicero, IL NPI 1134246127 Barbara Such Clinical Psychologist · Cicero, IL NPI 1518088533 Jorge Camarena Mental Health Counselor · Cicero, IL NPI 1760609143
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-22.