Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Horton
Social Worker in Oak Park, IL · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154174555
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Registry record
Entity type Individual (Type 1)
Name Alexander Horton
Sex Male
Practice address 317 S Oak Park Ave Apt 401, Oak Park, IL, 60302
Phone (708) 315-5086
Enumeration date Apr 8, 2024
Last updated in NPPES Apr 16, 2024
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 150.113051 (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
Where does Alexander Horton practice?
The practice location on file with NPPES is in Oak Park, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexander Horton?
The National Provider Identifier (NPI) for Alexander Horton is 1154174555, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-16.