Individual provider Active NPI

Thomas Michael Leonard, D.M.D.

  • General Practice Dentistry
  • Arlington, MA
National Provider Identifier
1003817727
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
12586 Issued in MA
Practice address
366 Mass Ave
Suite 301
Arlington, MA 02474-6733
Phone
(781) 646-8609
NPI assigned
Aug 3, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 12586 MA Primary

Addresses

Primary practice location

366 Mass Ave
Suite 301
Arlington, MA 02474-6733

Mailing address

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

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20150727002403 MA Order and Referring Only - DentistPractitioner - Dentist 1052625688

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
12586MAMDGeneral Practice Dentistry

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1123027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1003817727",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "366 MASS AVE",
            "address_2": "SUITE 301",
            "city": "ARLINGTON",
            "state": "MA",
            "postal_code": "024746733",
            "telephone_number": "781-646-8609"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "366 MASS AVE",
            "address_2": "SUITE 301",
            "city": "ARLINGTON",
            "state": "MA",
            "postal_code": "024746733",
            "telephone_number": "781-646-8609"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEONARD",
        "first_name": "THOMAS",
        "middle_name": "MICHAEL",
        "credential": "D.M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-03",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MA",
            "license": "12586",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Arlington, MA

Sources for this page

Verify at the official NPI Registry.