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

DR. MARK W HASSINGER D.D.S.
NPI 1073582227
Dentist - General Practice in Amarillo, TX

Q: What is Mark Hassinger's NPI number?

The NPI number for Mark Hassinger is 1073582227. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Q: What is Mark Hassinger'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 Hassinger 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 41 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 March 17, 2006

6937 BELL ST, STE. B, AMARILLO, TX 79109(806) 353-1704(806) 353-9477 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Mark W Hassinger D.d.s. NPPES

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

DR. MARK W HASSINGER D.D.S. (NPI 1073582227) is an individual general practice provider in Amarillo, Texas, licensed in Texas (11655) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1073582227

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. MARK W HASSINGERCredential: D.D.S.

Location Address6937 BELL ST, STE. BAmarillo, TX 79109-7018

Mailing Address6937 Bell St, Ste. BAmarillo, TX 79109-7018 · (806) 353-1704 · Fax (806) 353-9477

Phone(806) 353-1704

Fax(806) 353-9477

Sole ProprietorNo

Enumeration DateMarch 17, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1073582227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in TX · 11655

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.

6937 BELL ST, Amarillo, TX 79109

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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 Hassinger's NPI number?

The NPI number for Mark Hassinger is 1073582227. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is Mark Hassinger located?

Mark Hassinger practices at 6937 Bell St Ste. B, Amarillo, TX 79109. The listed phone number is (806) 353-1704.

What is Mark Hassinger'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 Mark Hassinger 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 41 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.