Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1003817727 Individual Practitioner Male Practitioner

Dr. Thomas Michael Leonard , DMD

Dentist - General Practice • Arlington, MA

Professional Overview & Biography Verified Profile Summary

Dr. Thomas Leonard, DMD is a registered healthcare professional specializing in Dentist - General Practice in Arlington, MA. Practice services are available at 366 MASS AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

366 Mass Ave
Suite 301

Arlington, MA 024746733

Telephone 7816468609

Specialty Benchmarks & Practice Insights

Comparative analytics for Dentist - General Practice in Arlington, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 10.9 Yrs
Regional Practice Density
11 Specialists

Practicing in Arlington, MA (3722 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Dentist - General Practice Primary Specialty

NUCC Taxonomy Code: 1223G0001X

State License MA 12586

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
Ulrike Dettling , MA, LMFT

Marriage & Family Therapist

NPI 1447435631

Master of Arts, Licensed Marriage and Family Therapist

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 366 MASS AVE, SUITE 301, ARLINGTON, MA 024746733 (Tel: 7816468609)

📍
Updated Business Mailing Address July 08, 2007

Registered at 366 MASS AVE, SUITE 301, ARLINGTON, MA 024746733 (Tel: 7816468609)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as THOMAS LEONARD, D.M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Dentist (License #12586 in MA)

🟢
Initial NPI Registration & Enumeration August 03, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1003817727
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 03, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

366 Mass Ave, Suite 301

Arlington, MA 024746733

Phone: 7816468609

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.