Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Randal J Leoni, DMD

General Practice Dentistry in San Juan Capistrano, CA · enumerated 2006 · practices at Leoni Dental Corporation.

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

National Provider Identifier

1821100256

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Registry record

Entity type Individual (Type 1)

Name Dr. Randal J Leoni

Credential DMD

Sex Male

Practice address 31897 Del Obispo St Ste 100, San Juan Capistrano, CA, 92675

Phone (949) 661-2290

Fax (949) 661-8433

Enumeration date Aug 31, 2006

Last updated in NPPES Nov 13, 2024

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 53239 (CA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

How do I verify Randal Leoni's NPI record?

Cross-check NPI 1821100256 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821100256 active?

Yes, as of the latest NPPES snapshot, NPI 1821100256 is active (record last updated 2024-11-13).

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Leoni Dental Corporation General Practice Dentistry · San Juan Capistrano, CA NPI 1912778960

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-13.