Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John D Seidner, MD

Emergency Medicine Physician in Klamath Falls, OR · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1881637148

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Registry record

Entity type Individual (Type 1)

Name John D Seidner

Credential MD

Sex Male

Practice address 2865 Daggett Ave, Klamath Falls, OR, 97601

Phone (541) 274-6175

Fax (541) 274-6739

Enumeration date Jun 14, 2006

Last updated in NPPES Jun 24, 2019

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 11338 (NH) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License MD191862 (OR) Primary

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
30203571	Medicaid	NH	-
H09471	Other	NH	HPHC
01Y003173NH03	Other	NH	ATHEM BCBS

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.

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Frequently asked questions

How do I verify John Seidner's NPI record?

Cross-check NPI 1881637148 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1881637148 active?

Yes, as of the latest NPPES snapshot, NPI 1881637148 is active (record last updated 2019-06-24).

Other providers at this practice address

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Grant Niskanen Family Medicine Physician · Klamath Falls, OR NPI 1801898358 Slavka Kucinska Internal Medicine Physician · Klamath Falls, OR NPI 1982698221 Frank Marx Internal Medicine Physician · Klamath Falls, OR NPI 1942296678 Jeffrey Walker Anatomic Pathology & Clinical Pathology Physician · Klamath Falls, OR NPI 1801883319 Miguel Montes Clinical Pathology/Laboratory Medicine Physician · Klamath Falls, OR NPI 1083688360 Konrad Eppel Emergency Medicine Physician · Klamath Falls, OR NPI 1669449120 Sky Lakes Medical Center Inc General Acute Care Hospital · Klamath Falls, OR NPI 1659340370 J Brunswick Emergency Medicine Physician · Klamath Falls, OR NPI 1902864275

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-24.