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

Dr. Keith Stephan Appelbaum, D.M.D.

Dentist in Sparta, NJ · enumerated 2009 · practices at Appelbaum Endodontics, LLC.

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

National Provider Identifier

1649408550

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Registry record

Entity type Individual (Type 1)

Name Dr. Keith Stephan Appelbaum

Credential D.M.D.

Sex Male

Practice address Sparta, NJ, 07871

Phone (973) 598-3450

Fax (973) 598-3455

Enumeration date Jun 30, 2009

Last updated in NPPES Jul 24, 2013

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License 22DI02411400 (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 Keith Appelbaum's NPI record?

Cross-check NPI 1649408550 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649408550 active?

Yes, as of the latest NPPES snapshot, NPI 1649408550 is active (record last updated 2013-07-24).

Other providers at this practice address

Browse all →

Dawn Poli Dentist · Sparta, NJ NPI 1306076617 Appelbaum Endodontics, LLC Endodontics · Sparta, NJ NPI 1386086783

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-24.