Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles Keith Cofas, M.D.

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

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

National Provider Identifier

1053371666

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles Keith Cofas

Credential M.D.

Sex Male

Practice address 2640 Biehn St Ste 4, Klamath Falls, OR, 97601

Phone (541) 882-3818

Fax (541) 882-9800

Enumeration date Mar 27, 2006

Last updated in NPPES Mar 29, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD25846 (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
P00318106	Other	OR	RAILROAD MEDICARE
027754	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Charles Cofas?

The National Provider Identifier (NPI) for Charles Cofas is 1053371666, a Type 1 (individual) record in the CMS NPPES registry.

Where does Charles Cofas practice?

The practice location on file with NPPES is in Klamath Falls, OR. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-29.