Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ariel Z Felsen, DDS

Dentist in New Square, NY · enumerated 2023.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043905649

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Registry record

Entity type Individual (Type 1)

Name Ariel Z Felsen

Credential DDS

Sex Male

Practice address 728 N Main St, New Square, NY, 10977

Phone (845) 354-9300

Enumeration date Apr 10, 2023

Last updated in NPPES Mar 10, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

122300000X Dentist Dental Providers · License 064464 (NY) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1043905649 active?

Yes, as of the latest NPPES snapshot, NPI 1043905649 is active (record last updated 2025-03-10).

How do I verify Ariel Felsen's NPI record?

Cross-check NPI 1043905649 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-10.