Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Leah Elizabeth Hasdan
Social Worker in Highland Park, IL · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326703679
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Registry record
Entity type Individual (Type 1)
Name Leah Elizabeth Hasdan
Sex Female
Practice address 581 Elm Pl Ste 110, Highland Park, IL, 60035
Phone (630) 428-7890
Enumeration date Nov 2, 2021
Last updated in NPPES Jun 17, 2026
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 150113669 (IL) Primary
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 1326703679 active?
Yes, as of the latest NPPES snapshot, NPI 1326703679 is active (record last updated 2026-06-17).
How do I verify Leah Hasdan's NPI record?
Cross-check NPI 1326703679 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 → Joshua Nathan Psychiatry Physician · Highland Park, IL NPI 1720048572 Carolyn Braverman Professional Counselor · Highland Park, IL NPI 1366529646 Lilian Pumah Psychiatric/Mental Health Nurse Practitioner · Highland Park, IL NPI 1639649486 Caitlin Kohls Professional Counselor · Highland Park, IL NPI 1679154066
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-17.