Thomas Michael Leonard, D.M.D.

General Practice Dentistry · Arlington, MA

Individual Active NPI

NPI number 1003817727

Practice location

366 Mass Ave
Suite 301
Arlington, MA 02474-6733
Phone
(781) 646-8609

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NPI record

NPI
1003817727
Entity type
Individual (Type 1)
Enumeration date
August 3, 2005
Last updated
July 13, 2026
Sole proprietor
No

Specialties & taxonomy codes

TaxonomyCodeLicenseState
General Practice Dentistry Primary 1223G0001X 12586 MA

About Dr. Leonard

Thomas Michael Leonard, D.M.D. is a healthcare provider registered in the NPI registry with the primary taxonomy General Practice Dentistry (code 1223G0001X). The practice location is 366 Mass Ave, Suite 301, Arlington, MA 02474-6733. The NPI number 1003817727 was assigned on August 3, 2005 and the record was last updated on July 13, 2026.

Dr. Leonard lists a license in the registry: #12586 (MA) for General Practice Dentistry. License numbers are self-reported to NPPES; verify them with the state licensing board.

Frequently asked questions

What is the NPI number of Thomas Michael Leonard, D.M.D.?

The NPI number is 1003817727.

What is the phone number of Dr. Leonard?

The phone number listed for the practice location is (781) 646-8609.

Where is Dr. Leonard located?

366 Mass Ave, Suite 301, Arlington, MA 02474-6733.

What is the taxonomy code for Dr. Leonard?

The primary taxonomy code is 1223G0001X – General Practice Dentistry.

Is this information correct?

All details come from the public NPPES registry. Providers can update their record at nppes.cms.hhs.gov; changes appear here after the next weekly update.

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