Ernst Cornielsen, D.D.S.
NPI 1447268651 · Oral and Maxillofacial Surgery (Dentist) · Lake Geneva, WI
Ernst Cornielsen, D.D.S. is a Oral and Maxillofacial Surgery (Dentist) provider in Lake Geneva, WI (NPI 1447268651).
Provider details
- NPI number
- 1447268651
- Entity type
- Individual
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 1732-G (WI)
Specialties & taxonomies
Dental Providers
- Oral and Maxillofacial Surgery (Dentist)1223S0112X
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ernst Cornielsen's NPI number?
- Ernst Cornielsen's National Provider Identifier (NPI) is 1447268651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernst Cornielsen's specialty?
- Ernst Cornielsen is listed in the NPPES registry with a primary specialty of Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is Ernst Cornielsen located?
- Ernst Cornielsen's practice location on file with NPPES is 312 Center St, Lake Geneva, WI 53147-1904.
- What is Ernst Cornielsen's phone number?
- The practice phone number listed in the NPPES registry for Ernst Cornielsen is (262) 248-2868.
- Is Ernst Cornielsen's NPI active?
- Yes — Ernst Cornielsen's NPI (1447268651) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.