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

Dr. Louis Joseph Maddalena, DMD

General Practice Dentistry in East Hanover, NJ · enumerated 2007.

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

National Provider Identifier

1841418282

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Registry record

Entity type Individual (Type 1)
Name Dr. Louis Joseph Maddalena
Credential DMD
Sex Male
Practice address East Hanover, NJ, 07936
Phone (973) 887-7767
Fax (973) 887-5463
Enumeration date Apr 23, 2007
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 22DI01464400 (NJ) Primary
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Other identifiers

Identifier Type State Issuer
22DI101464400 Other NJ STATE LICENSE NUMBER

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

What is the NPI number for Louis Maddalena?
The National Provider Identifier (NPI) for Louis Maddalena is 1841418282, a Type 1 (individual) record in the CMS NPPES registry.
Where does Louis Maddalena practice?
The practice location on file with NPPES is in East Hanover, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.