Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karl R Knudsen, MD

Orthopaedic Surgery Physician in Klamath Falls, OR · enumerated 2006.

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

National Provider Identifier

1730275736

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Registry record

Entity type Individual (Type 1)

Name Karl R Knudsen

Credential MD

Sex Male

Practice address 2200 Bryant Williams Dr, Suite 1, Klamath Falls, OR, 97601

Phone (541) 884-7746

Fax (541) 884-0848

Enumeration date Oct 5, 2006

Last updated in NPPES Nov 5, 2014

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD27448 (OR) Primary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License MD27448 (OR) Secondary

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
93062096697601	Other	OR	TRICARE
P00478530	Other	OR	RAIL ROAD MEDICARE
891400000	Other	OR	BLUE CROSS OF OREGON
26220204497601A002	Other	OR	TRICARE
P00419800	Other	OR	RAIL ROAD MEDICARE
002635014	Other	OR	BLUE CROSS
274622	Medicaid	OR	-

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 Karl Knudsen's NPI record?

Cross-check NPI 1730275736 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1730275736 active?

Yes, as of the latest NPPES snapshot, NPI 1730275736 is active (record last updated 2014-11-05).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-11-05.