Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Daniel Lucien Cassidy Jr.

General Practice Dentistry in Hilton Head Island, SC · enumerated 2020.

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

National Provider Identifier

1356974513

Verified

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Registry record

Entity type Individual (Type 1)

Name Daniel Lucien Cassidy Jr.

Sex Male

Practice address Hilton Head Island, SC, 29928

Phone (478) 737-6098

Enumeration date Feb 17, 2020

Last updated in NPPES Feb 24, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License DGD.9721GD (SC) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 9721 (SC) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Daniel Cassidy practice?

The practice location on file with NPPES is in Hilton Head Island, SC. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Daniel Cassidy?

The National Provider Identifier (NPI) for Daniel Cassidy is 1356974513, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Elizabeth Galloway-Dextraze Dentist · Hilton Head Island, SC NPI 1720245608

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-24.