Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Frank Geoffrey Marx, MD

Individual provider Internal Medicine Physician · NPI 1942296678

Frank Geoffrey Marx, MD is an Internal Medicine Physician in Klamath Falls, Oregon. Practices as a sole proprietor. Licensed in Oregon.

Licensed in
OR
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2865 Daggett Ave
Klamath Falls, OR 97601-1106
Phone: (541) 274-6311
Fax: (541) 884-0730
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 10494 (OR)

Record details

NPI number1942296678
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 27, 2005
Last updated in NPPESDecember 20, 2013

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