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

Ernst A. Cornielsen, DDS

Individual provider Oral and Maxillofacial Surgery (Dentist) · NPI 1447268651

Ernst A. Cornielsen, DDS is an Oral and Maxillofacial Surgery (Dentist) in Lake Geneva, Wisconsin. Licensed in Illinois and Wisconsin. Registered with an NPI since 2006.

Licensed in
IL, WI
In the registry since
2006
Specialties on file
2
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

312 Center St
Lake Geneva, WI 53147-1904
Phone: (262) 248-2868
Fax: (262) 248-7274
Show map & directions

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

Specialties & licences

Oral and Maxillofacial Surgery (Dentist) (primary) Taxonomy 1223S0112X · Licence 1732-G (WI)
Oral and Maxillofacial Surgery (Dentist) Taxonomy 1223S0112X (IL)

Record details

NPI number1447268651
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorNo
NPI enumeratedAugust 3, 2006
Last updated in NPPESJuly 8, 2007
Mailing addressW3627 Wildwood Dr, Lake Geneva, WI 53147-3568

Other providers in Lake Geneva