Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alexander Aronis
Occupational Therapist in Bronx, NY · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538524251
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Registry record
Entity type Individual (Type 1)
Name Alexander Aronis
Sex Male
Practice address 577 E 139th St, Bronx, NY, 10454
Phone (718) 292-5737
Enumeration date Dec 22, 2015
Last updated in NPPES Dec 22, 2015
Taxonomy & licenses
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 020036 (NY) 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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alexander Aronis?
Alexander Aronis is registered in NPPES with the primary taxonomy of Occupational Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-22.