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

MARK LEROY HARRIS D.M.D.
NPI 1184622797
Dentist in La Grande, OR

Active since July 08, 2005
1809 3RD ST, LA GRANDE, OR 97850(541) 963-0924(541) 962-0924 Get Directions Write a Review

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

About Mark Leroy Harris D.m.d. NPPES

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

MARK LEROY HARRIS D.M.D. (NPI 1184622797) is an individual dentist in La Grande, Oregon, licensed in Oregon (6922) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1184622797
Entity TypeIndividualMale
Primary Taxonomy122300000X
Provider Legal NameMARK LEROY HARRISCredential: D.M.D.
Location Address1809 3RD STLa Grande, OR 97850-2244
Mailing Address1805 Highland DrLa Grande, OR 97850-3209 · (541) 962-0493 · Fax (541) 962-0924
Phone(541) 963-0924
Fax(541) 962-0924
Sole ProprietorNo
Enumeration DateJuly 8, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1184622797 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentistDental Providers
Taxonomy Code122300000X
License✔ Licensed in OR · 6922
Definition
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
1809 3RD ST, La Grande, OR 97850
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, PacificSource Health Plans, Regence BlueCross BlueShield of Oregon.Insurance ›

Other Providers at the Same Location NPPES 4

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

LEWIS RANDALL WRIGHT DMD
Dentist
1809 3RD ST
LA GRANDE, OR 97850
Union County (541) 963-0924
STEPHEN M. MCLEAN, D.M.D.,P.C.
Dentist (General Practice)
1809 3RD ST
LA GRANDE, OR 97850
Union County (541) 963-0924
MARK HARRIS, D.M.D., P.C.
Dentist (General Practice)
1809 3RD ST
LA GRANDE, OR 97850
Union County (541) 963-0924
LYNN REED HARRIS D.M.D.
Dentist
1809 3RD ST
LA GRANDE, OR 97850
Union County (541) 963-0924

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 Harris's NPI number?

The NPI number for Mark Harris is 1184622797. It was assigned to this individual provider in the NPPES registry on July 8, 2005.

Where is Mark Harris located?

Mark Harris practices at 1809 3rd St, La Grande, OR 97850. The listed phone number is (541) 963-0924.

What is Mark Harris's specialty?

The primary specialty registered for this NPI is Dentist with taxonomy code 122300000X.

What insurance does Mark Harris accept?

Health plans from BridgeSpan Health Company, PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Mark Harris 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 Harris 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.