Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellie Christine Horn, LMSW
Social Worker in Port Chester, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1043017411
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Registry record
Entity type Individual (Type 1)
Name Ellie Christine Horn
Credential LMSW
Sex X
Practice address 10 Pearl St, Port Chester, NY, 10573
Phone (914) 265-2762
Enumeration date Feb 25, 2025
Last updated in NPPES Feb 25, 2025
Taxonomy & licenses
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 Ellie Horn practice?
The practice location on file with NPPES is in Port Chester, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ellie Horn?
The National Provider Identifier (NPI) for Ellie Horn is 1043017411, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Donna Santavicca Social Worker · Port Chester, NY NPI 1619580347 Sifat Ameen Psychiatric/Mental Health Nurse Practitioner · Port Chester, NY NPI 1073129649 Kelly Magana Mental Health Counselor · Port Chester, NY NPI 1235857046 Edisa Korac Psychiatric/Mental Health Nurse Practitioner · Port Chester, NY NPI 1689388720
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-25.