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

John J Koch, MD

Individual provider Family Medicine Physician · NPI 1245338979

John J Koch, MD is a Family Medicine Physician in Sauk City, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2006.

Licensed in
WI
In the registry since
2006
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

112 Helen St
Sauk City, WI 53583-1101
Phone: (608) 643-3351
Fax: (608) 643-3621
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 19360 (WI)

Record details

NPI number1245338979
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address112 Helen St, Sauk City, WI 53583-1101

Other providers in Sauk City