Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Rebecca Ann Horwitz, LSW
Social Worker in Mount Prospect, IL · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326410192
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Registry record
Entity type Individual (Type 1)
Name Miss Rebecca Ann Horwitz
Credential LSW
Sex Female
Practice address 1585 Dempster St, Mount Prospect, IL, 60056
Phone (847) 621-2040
Fax (847) 258-3120
Enumeration date Oct 20, 2015
Last updated in NPPES Oct 20, 2015
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 150101331 (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
What is the NPI number for Rebecca Horwitz?
The National Provider Identifier (NPI) for Rebecca Horwitz is 1326410192, a Type 1 (individual) record in the CMS NPPES registry.
Where does Rebecca Horwitz practice?
The practice location on file with NPPES is in Mount Prospect, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Kenneth Young Center Mental Health Clinic/Center (Including Community Mental Health Center) · Mount Prospect, IL NPI 1932533841 Kenneth Young Center Mental Health Clinic/Center (Including Community Mental Health Center) · Mount Prospect, IL NPI 1518364520 Christina Hall Mental Health Counselor · Mount Prospect, IL NPI 1154790392 Pamela Mcvoy Registered Nurse · Mt Prospect, IL NPI 1447603444 Mayra Ascencio Mental Health Counselor · Mount Prospect, IL NPI 1720503998 Meridian Ruby Clinical Social Worker · Mt Prospect, IL NPI 1386138485 Aisha Sheppard Social Worker · Mt Prospect, IL NPI 1811477540 Adriana Arellano Clinical Social Worker · Mount Prospect, IL NPI 1689155152
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-20.