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

Dr. Donald John Hanneman, DDS

Individual provider General Practice Dentistry · NPI 1285842419

Dr. Donald John Hanneman, DDS is a General Practice Dentistry in Janesville, Wisconsin. Practices as a sole proprietor. Licensed in Wisconsin.

Licensed in
WI
In the registry since
2007
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

2021 Wesley Ave
Janesville, WI 53545-2641
Phone: (608) 754-0474
Fax: (608) 754-1253
Show map & directions

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

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 5000421015 (WI)

Record details

NPI number1285842419
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedMay 20, 2007
Last updated in NPPESJuly 8, 2007
Mailing address2021 Wesley Ave, Janesville, WI 53545-2641

Other providers in Janesville