DR. THOMAS JOHN HARMON DDS
NPI 1790874204
Dentist - General Practice in Grand Rapids, MI

Q: What is Thomas Harmon's NPI number?

The NPI number for Thomas Harmon is 1790874204. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Q: What is Thomas Harmon's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Harmon was last updated on December 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 12, 2006

3575 LAKE EASTBROOK SE, GRAND RAPIDS, MI 49546(616) 949-2650(616) 222-0747 Get Directions Write a Review

NPPES record last updated: December 5, 2008. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Thomas John Harmon Dds NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. THOMAS JOHN HARMON DDS (NPI 1790874204) is an individual general practice provider in Grand Rapids, Michigan, licensed in Michigan (12698) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1790874204

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. THOMAS JOHN HARMONCredential: DDS

Location Address3575 LAKE EASTBROOK SEGrand Rapids, MI 49546

Mailing Address3575 Lake Eastbrook SeGrand Rapids, MI 49546 · (616) 949-2650 · Fax (616) 222-0747

Phone(616) 949-2650

Fax(616) 222-0747

Sole ProprietorYes

Enumeration DateOctober 12, 2006

Last NPPES UpdateDecember 5, 2008

✔ NPI 1790874204 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in MI · 12698

Definition

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.

3575 LAKE EASTBROOK SE, Grand Rapids, MI 49546

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Other Identifiers 2

Medicare UPINV02815

Medicaid124055750MI

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Harmon's NPI number?

The NPI number for Thomas Harmon is 1790874204. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Thomas Harmon located?

Thomas Harmon practices at 3575 Lake Eastbrook SE, Grand Rapids, MI 49546. The listed phone number is (616) 949-2650.

What is Thomas Harmon's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Thomas Harmon was last updated on December 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.