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

Individual provider Internal Medicine Physician · NPI 1255426508

Dr. Francis John Keffler, MD is an Internal Medicine Physician in Denver, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1055 Clermont St
Denver, CO 80220-3808
Phone: (303) 914-8047
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 225439 (CO)

Record details

NPI number1255426508
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 3, 2006
Last updated in NPPESJuly 21, 2022

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