Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. William J. Baron, D.M.D.
Dentist in Rockaway, NJ · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598761405
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Registry record
Entity type Individual (Type 1)
Name Dr. William J. Baron
Credential D.M.D.
Sex Male
Practice address 171 W Main St, Rockaway, NJ, 07866
Phone (973) 627-2186
Enumeration date Jun 24, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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.
Frequently asked questions
Where does William Baron practice?
The practice location on file with NPPES is in Rockaway, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Baron?
The National Provider Identifier (NPI) for William Baron is 1598761405, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.