Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Joel A Leonard, DMD
Dentist in Norwell, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033246384
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Registry record
Entity type Individual (Type 1)
Name Dr. Joel A Leonard
Credential DMD
Sex Male
Practice address 334 Washington Street, Norwell, MA, 02061
Phone (781) 659-4034
Fax (781) 659-4080
Enumeration date Feb 27, 2007
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
What is the NPI number for Joel Leonard?
The National Provider Identifier (NPI) for Joel Leonard is 1033246384, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joel Leonard practice?
The practice location on file with NPPES is in Norwell, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.