Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ersilia Constantinou
Specialist in Commack, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831075647
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ersilia Constantinou
Sex Female
Practice address 7 Shelton Ct, Commack, NY, 11725
Phone (917) 435-0303
Enumeration date Aug 15, 2025
Last updated in NPPES Aug 15, 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
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 Ersilia Constantinou?
Ersilia Constantinou is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-15.