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

MR. DONALD CLIFFORD GUENTHER MD
NPI 1598746802
Pediatrics in Pendleton, OR

Q: What is Donald Guenther's NPI number?

The NPI number for Donald Guenther is 1598746802. It was assigned to this individual provider in the NPPES registry on November 14, 2005.

Q: What is Donald Guenther's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for Donald Guenther 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 33 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 November 14, 2005

1600 SE COURT PL, PENDLETON, OR 97801(541) 276-0250(541) 276-0253 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 Mr. Donald Clifford Guenther Md NPPES

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

MR. DONALD CLIFFORD GUENTHER MD (NPI 1598746802) is an individual pediatrics provider in Pendleton, Oregon, licensed in Oregon (08926) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1598746802

Entity TypeIndividualMale

Primary Taxonomy208000000X

Provider Legal NameMR. DONALD CLIFFORD GUENTHERCredential: MD

Location Address1600 SE COURT PLPendleton, OR 97801-3281

Mailing Address1600 Se Court PlPendleton, OR 97801-3281 · (541) 276-0250 · Fax (541) 276-0253

Phone(541) 276-0250

Fax(541) 276-0253

Sole ProprietorNo

Enumeration DateNovember 14, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1598746802 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in OR · 08926

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

1600 SE COURT PL, Pendleton, OR 97801

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Other Identifiers 1

Medicaid072132OR

Other Providers at the Same Location NPPES 8

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

DR. RUSSELL B HARRISON MD

Family Medicine

1600 SE COURT PL, SUITE 201
PENDLETON, OR 97801

Umatilla County (541) 276-1700

PENDLETON FAMILY MEDICINE LLC

Family Medicine

1600 SE COURT PL, STE 201
PENDLETON, OR 97801

Umatilla County (541) 276-1700

JONATHAN C HITZMAN MD

Family Medicine

1600 SE COURT PL, SUITE 201
PENDLETON, OR 97801

Umatilla County (541) 276-1700

LINDA HARRIES PA-C

Physician Assistant

1600 SE COURT PL, SUITE 201
PENDLETON, OR 97801

Umatilla County (541) 276-1700

MRS. JANET ADELE PENNY MD

Pediatrics

1600 SE COURT PL, L01
PENDLETON, OR 97801

Umatilla County (541) 276-0250

PEDIATRIC SPECIALISTS OF PENDLETON, LLC

Clinic/Center

1600 SE COURT PL, SUITE, L01
PENDLETON, OR 97801

Umatilla County (541) 276-0250

ST ANTHONY HOSPITAL

Internal Medicine

1600 SE COURT PL, STE 114
PENDLETON, OR 97801

Umatilla County (541) 966-0571

DR. JOHN MALCOLM MCBEE M.D.

Surgery

1600 SE COURT PL
PENDLETON, OR 97801

Umatilla County (541) 276-1278

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 Donald Guenther's NPI number?

The NPI number for Donald Guenther is 1598746802. It was assigned to this individual provider in the NPPES registry on November 14, 2005.

Where is Donald Guenther located?

Donald Guenther practices at 1600 SE Court Pl, Pendleton, OR 97801. The listed phone number is (541) 276-0250.

What is Donald Guenther's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Donald Guenther 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 33 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.