John C. Gernetzke, D.D.S.
Dentist · Evansville, WI
John C. Gernetzke, D.D.S. is a dentist with a practice address in Evansville, Wisconsin, and NPI 1629050026, issued on Nov 19, 2005. Check the license (Wisconsin 4078, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John C. Gernetzke
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 4078 WI
Self-reported in NPPES; status is on the state search - Practice location
- 109 S Madison St, Evansville, WI 53536
- Phone
- (608) 882-4441
- Enumerated
- Nov 19, 2005
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (608) 882-4967
- Medicaid ID
- 33688500 WI
- Entity
- Type 1 · individual
Also registered at 109 S Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cali Hensel, DDSDentist1699592535
Verify John C. Gernetzke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 4078Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average dentist in 2024
55 Medicare Part D claims for 41 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin33 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $67.54
3 payments; by number, the most common kind was food and beverage; the largest payer was Patterson Companies, Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
4 dentist records list a practice address in Evansville
They are 4 of the 73 NPPES records with a practice address in Evansville, and 1,750 dentist records in Wisconsin.
All 4 in Evansville → All 1,750 in Wisconsin → Every provider in Evansville →
Other dentist records in Wisconsin
- Buhisa AbdelkafiRacine, WI1881383586
- Hooman Abdolisereshki, DDSPlymouth, WI1619369279
- Megan Abell, DDSMadison, WI1346477361
- Matthew Abraham, DDSLadysmith, WI1912350448
- Nicolas Abujamra, DDS, MSGreen Bay, WI1720123201
- Guillermo Aceves, DDSJanesville, WI1447090766
- Amber Ackerman, DMDMount Horeb, WI1497646509
- Erica Adams, DMDMadison, WI1275101909
- Hala Afifa, DDSMilwaukee, WI1891363198
- Aarushi Agarwal, DMDMadison, WI1841977717
Common questions
What is John C. Gernetzke, D.D.S.'s NPI number?
John C. Gernetzke, D.D.S.'s National Provider Identifier (NPI) is 1629050026, issued on Nov 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John C. Gernetzke, D.D.S. located?
The NPPES record lists a practice address at 109 S Madison St, Evansville, WI, 53536. Phone: (608) 882-4441. Providers update this record themselves, so call before visiting.
How can I verify John C. Gernetzke, D.D.S.'s license?
NPPES lists Wisconsin license number 4078, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does John C. Gernetzke, D.D.S. prescribe under Medicare Part D?
In 2024, John C. Gernetzke, D.D.S. had 55 Medicare Part D claims for 41 beneficiaries; the average among dentist prescribers was 86. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.