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

Dr. Keith Lynch Marks, DC

Individual provider Chiropractor · NPI 1619012333

Dr. Keith Lynch Marks, DC is a Chiropractor in Marathon, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

See every abbreviation used in this directory →

Practice location Address checks out

117 Main St
Marathon, WI 54448-9646
Phone: (715) 443-6777
Fax: (715) 443-3177
Show map & directions

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

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 3377 (WI)

Record details

NPI number1619012333
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedFebruary 20, 2007
Last updated in NPPESNovember 16, 2011

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