Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nikki Diamantopoulos, ATC
Athletic Trainer in Syosset, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003620808
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Registry record
Entity type Individual (Type 1)
Name Nikki Diamantopoulos
Credential ATC
Sex Female
Practice address 350 Robbins Ln, Syosset, NY, 11791
Phone (516) 822-1777
Enumeration date Feb 3, 2025
Last updated in NPPES Feb 3, 2025
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 002048 (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
How do I verify Nikki Diamantopoulos's NPI record?
Cross-check NPI 1003620808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1003620808 active?
Yes, as of the latest NPPES snapshot, NPI 1003620808 is active (record last updated 2025-02-03).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-03.