Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Thomas J. Million, D.M.D.

General Practice Dentistry in Leeds, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1578593828

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Registry record

Entity type Individual (Type 1)

Name Dr. Thomas J. Million

Credential D.M.D.

Sex Male

Practice address Leeds, MA, 01053

Phone (413) 584-4040

Enumeration date Jul 3, 2006

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License D6145 (OR) Secondary

1223G0001X General Practice Dentistry Dental Providers · License 32975 (CA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Thomas Million?

The National Provider Identifier (NPI) for Thomas Million is 1578593828, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Million practice?

The practice location on file with NPPES is in Leeds, 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 2025-09-11.