Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARK THOMAS ARMSTRONG D.D.S.
NPI 1093713570
Dentist - General Practice in Troy, OH

Q: What is Mark Armstrong's NPI number?

The NPI number for Mark Armstrong is 1093713570. It was assigned to this individual provider in the NPPES registry on July 8, 2005.

Q: What is Mark Armstrong'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 Mark Armstrong was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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 July 08, 2005

1364 W MAIN ST, TROY, OH 45373(937) 339-3708(937) 339-2320 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mark Thomas Armstrong D.d.s. NPPES

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

DR. MARK THOMAS ARMSTRONG D.D.S. (NPI 1093713570) is an individual general practice provider in Troy, Ohio, licensed in Ohio (30-018950) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1093713570

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. MARK THOMAS ARMSTRONGCredential: D.D.S.

Location Address1364 W MAIN STTroy, OH 45373-2552

Mailing Address1364 W Main StTroy, OH 45373-2552 · (937) 339-3708 · Fax (937) 339-2320

Phone(937) 339-3708

Fax(937) 339-2320

Sole ProprietorNo

Enumeration DateJuly 8, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1093713570 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in OH · 30-018950

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.

1364 W MAIN ST, Troy, OH 45373

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Other Identifiers 1

Medicaid0913757OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Delta Dental of Ohio.Insurance ›

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. TONY DAVID HIRSCHFELD D.D.S.

Dentist

1364 W MAIN ST
TROY, OH 45373

Miami County (937) 339-8656

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 Mark Armstrong's NPI number?

The NPI number for Mark Armstrong is 1093713570. It was assigned to this individual provider in the NPPES registry on July 8, 2005.

Where is Mark Armstrong located?

Mark Armstrong practices at 1364 W Main St, Troy, OH 45373. The listed phone number is (937) 339-3708.

What is Mark Armstrong's specialty?

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

What insurance does Mark Armstrong accept?

Health plans from Delta Dental of Ohio list Mark Armstrong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Armstrong was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 31 days 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.