NPI Portal NPI Lookup & Verification

Mr. Donald Clifford Guenther, MD

Mr. Donald Clifford Guenther is a Pediatrics Physician provider (Pediatrics) practicing in Pendleton, OR, registered in the NPPES registry with NPI 1598746802 since 2005. The credential MD stands for Doctor of Medicine.

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NPI 1598746802
Entity type Individual (Type 1)
Name Mr. Donald Clifford Guenther
Credential MD
Sex Male
Practice address 1600 SE COURT PL, Pendleton, OR, 97801
Phone 5412760250
Fax 5412760253
Enumeration date 2005-11-14
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208000000X Pediatrics Physician Primary 08926 OR

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
072132 Medicaid OR
Copy-ready billing details
Provider: Donald Guenther, MD
NPI: 1598746802
Taxonomy: 208000000X (Pediatrics Physician)
Address: 1600 SE COURT PL, Pendleton, OR, 97801

Other providers at this practice address

NPI Name Type Specialty Location
1497741656 Jonathan Hitzman Individual Family Medicine Physician Pendleton, OR
1578554770 Janet Penny Individual Pediatrics Physician Pendleton, OR
1164409173 Russell Harrison Individual Family Medicine Physician Pendleton, OR
1740229418 John Mcbee Individual Surgery Physician Pendleton, OR
1538189782 Linda Harries Individual Physician Assistant Pendleton, OR
1689739310 Pediatric Specialists of Pendleton, LLC Organization Clinic/Center Pendleton, OR
1285765883 Pendleton Family Medicine LLC Organization Family Medicine Physician Pendleton, OR
1689954836 St Anthony Hospital Organization Internal Medicine Physician Pendleton, OR

Verify this record

Cross-check NPI 1598746802 against the authoritative CMS record: view Mr. Donald Clifford Guenther on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

How do I verify Donald Guenther's NPI record?
Cross-check NPI 1598746802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1598746802 active?
Yes — as of the latest NPPES snapshot, NPI 1598746802 is active (record last updated 2007-07-08).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.