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

William K Clanfield, MD

Individual provider Hospitalist Physician · NPI 1326085648

William K Clanfield, MD is a Hospitalist Physician in Janesville, 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

3400 E Racine St
Janesville, WI 53546-2344
Phone: (608) 373-8000
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 31105-20 (WI)

Record details

NPI number1326085648
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2006
Last updated in NPPESNovember 5, 2020
Certification dateNovember 5, 2020
Mailing address3400 E Racine St, Janesville, WI 53546-2344

Other providers in Janesville