Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Warren Christian Madsen, DMD

General Practice Dentistry in Avenel, NJ · enumerated 2006 · practices at Xcellcare Medical Practice LLC.

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

National Provider Identifier

1366408478

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Registry record

Entity type Individual (Type 1)

Name Dr. Warren Christian Madsen

Credential DMD

Sex Male

Practice address 432 Avenel St, Avenel, NJ, 07001

Phone (732) 634-4797

Fax (732) 634-6109

Enumeration date Apr 26, 2006

Last updated in NPPES Feb 3, 2015

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 22DI01706900 (NJ) 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.

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Frequently asked questions

How do I verify Warren Madsen's NPI record?

Cross-check NPI 1366408478 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366408478 active?

Yes, as of the latest NPPES snapshot, NPI 1366408478 is active (record last updated 2015-02-03).

Other providers at this practice address

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Sally-Jo Placa General Practice Dentistry · Avenel, NJ NPI 1932165578 Xcellcare Medical Practice LLC Internal Medicine Physician · Avenel, NJ NPI 1659177582

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-03.