wisconsin
Specialties
Oral and Maxillofacial Surgeon
Dr. John C. Gernetzke
Dr. John C. Gernetzke

Dr. John C. Gernetzke

  • Gender: Male
  • Experience: 32 years
  • Sole propriator: No
  • NPI: 1629050026

Dr. John C. Gernetzke D.D.S.

Oral and Maxillofacial Surgeon

He is located at 109 South Madison Street in Evansville, WI 53536. Can help patients with the following: Cavities, Cracked Tooth, Dental Crowns and Caps, Dental Emergency, Root Canal, Tooth Extraction. His National Provider Identifier (NPI) number is 1629050026. Appointment can be made via the phone number (608) 882-4441. He is affiliated with 1 practices.

Conditions treated

Dr. John C. Gernetzke, being an oral and maxillofacial surgeon, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John C. Gernetzke.

  • Bad Breath
  • Bleeding Gums
  • Cavities
  • Cosmetic Dentistry
  • Cracked Tooth
  • Dental Bridges
  • Dental Crowns and Caps
  • Dental Emergency
  • Dental Exam and Cleaning
  • Dental Fillings and Repairs
  • Dental Implants
  • Dental Malocclusion
  • Dentin Hypersensitivity
  • Dentures
  • General Oral Health
  • Gum Disease / Gingivitis
  • Invisalign
  • Laser
  • Oral Cancer Examination
  • Oral Pain
  • Pericoronitis
  • Root Canal
  • Root Canals
  • Sinus Tract
  • Teeth Grinding
  • Teeth Sensitivity
  • Teeth Straightening
  • Teeth Whitening
  • Temporomandibular Joint Syndrome (TMJ)
  • Tongue Problems
  • Tooth Extraction
  • Traumatic Dental Injury
  • Veneers
  • Wisdom Teeth Removal

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. John C. Gernetzke as in-network for the following 2026 plans.

Health plans

Dean Health Plan

Network data as of Aug 13, 2026, as reported by the insurer.

Show all 18 plans from Dean Health Plan
Dean Health Plan plans
Plan Plan type Network tier New patients
Dean Bronze $0 Copay PCP Visits HMO · Expanded Bronze Preferred Accepting new patients
Dean Bronze Share HMO · Expanded Bronze Preferred Accepting new patients
Dean Expanded Bronze Standard HMO · Expanded Bronze Preferred Accepting new patients
Dean Focus Bronze $0 Copay PCP Visits EPO · Expanded Bronze Preferred Accepting new patients
Dean Focus Bronze Share EPO · Expanded Bronze Preferred Accepting new patients
Dean Focus Expanded Bronze Standard EPO · Expanded Bronze Preferred Accepting new patients
Dean Focus Gold HSA EPO · Gold Preferred Accepting new patients
Dean Focus Gold Share EPO · Gold Preferred Accepting new patients
Dean Focus Gold Standard EPO · Gold Preferred Accepting new patients
Dean Focus Silver $0 Copay PCP Visits EPO · Silver Preferred Accepting new patients
Dean Focus Silver Share EPO · Silver Preferred Accepting new patients
Dean Focus Silver Standard EPO · Silver Preferred Accepting new patients
Dean Gold HSA HMO · Gold Preferred Accepting new patients
Dean Gold Share HMO · Gold Preferred Accepting new patients
Dean Gold Standard HMO · Gold Preferred Accepting new patients
Dean Silver $0 Copay PCP Visits HMO · Silver Preferred Accepting new patients
Dean Silver Share HMO · Silver Preferred Accepting new patients
Dean Silver Standard HMO · Silver Preferred Accepting new patients

MercyCare Health Plans

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 6 plans from MercyCare Health Plans
MercyCare Health Plans plans
Plan Plan type Network tier New patients
MercyCare Bronze 10,000 (1 Free PCP Visit) HMO · Bronze Preferred Accepting new patients
MercyCare Bronze Standard Expanded HMO · Expanded Bronze Preferred Accepting new patients
MercyCare Gold Standard HMO · Gold Preferred Accepting new patients
MercyCare Silver 2,500 (3 Free PCP Visits) HMO · Silver Preferred Accepting new patients
MercyCare Silver Health Savings HMO · Silver Preferred Accepting new patients
MercyCare Silver Standard HMO · Silver Preferred Accepting new patients

Dental plans

Delta Dental of Wisconsin, Inc.

Network data as of Sep 12, 2026, as reported by the insurer.

Delta Dental of Wisconsin, Inc. plans
Plan Plan type Network tier New patients
Delta Dental Individual and Family High Plan PPO · High Delta Dental PPO and Delta Dental Premier Accepting new patients
Delta Dental Individual and Family Low Plan PPO · Low Delta Dental PPO and Delta Dental Premier Accepting new patients
Delta Dental Individual and Family Low Plan Major PPO · Low Delta Dental PPO and Delta Dental Premier Accepting new patients
Delta Dental PPO Plus Premier Family Plan High Option PPO · High Delta Dental PPO and Delta Dental Premier Accepting new patients
Delta Dental PPO Plus Premier Family Plan Low Option PPO · Low Delta Dental PPO and Delta Dental Premier Accepting new patients

Humana

Network data as of Sep 13, 2026, as reported by the insurer.

Humana plans
Plan Plan type Network tier New patients
Humana Dental Smart Choice PPO · Low Preferred Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. John C. Gernetzke is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. John C. Gernetzke is enrolled to bill Medicare as a Practitioner - Oral Surgery .

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Payments received

Drug payment

A-Dec $412
Convergent Dental $113
Align Technology $110

Other

Travel and Lodging $412
Food and Beverage $259

Additional Specialities

  • Dentist

Affiliated practices

The Grove Family Dental & TMJ Clinic
109 South Madison Street
Evansville, 53536 WI
(608) 882-4441

Looking for more Oral and Maxillofacial Surgeons?

Here are oral and maxillofacial surgeons in Wisconsin you may want to explore.

Dr. Adam Sorenson
  • Gender: Male
  • Address: 615 10th Street South La Crosse, 54601, WI
Dr. Kenneth Martin Hartenian
  • Gender: Male
  • Address: 33 East Waldo Boulevard Manitowoc, 54220, WI
Dr. Michael Scott Connor
  • Gender: Male
  • Address: Suite 222 1111 Delafield Street Waukesha, 53188, WI
Dr. Gary B. Olson
  • Gender: Male
  • Address: Suite 202 3930 8th Street South Wisconsin Rapids, 54494, WI
Dr. Jill Merrill
  • Gender: Female
  • Address: 840 North 87th Street Milwaukee, 53226, WI
Dr. Mark James Erickson
  • Gender: Male
  • Address: 1836 South Avenue La Crosse, 54601, WI
Dr. Mark J. Kortebein
  • Gender: Male
  • Address: Suite 102 10535 North Port Washington Road Mequon, 53092, WI
Dr. Jeffery B. Davis
  • Gender: Male
  • Address: 7007 Old Sauk Road Madison, 53717, WI
Dr. Robert Conlon
  • Gender: Male
  • Address: 312 Center Street Lake Geneva, 53147, WI
Dr. William J. Nelson
  • Gender: Male
  • Address: 2581 Development Drive Green Bay, 54311, WI

Questions & Answers

What conditions does Dr. John C. Gernetzke treat?

Dr. John C. Gernetzke provides treatment for Cavities, Cracked Tooth, Dental Crowns and Caps, Dental Emergency, Root Canal, Tooth Extraction. For the full list see this list.

Where can you meet with Dr. John C. Gernetzke?

Dr. John C. Gernetzke's office is located at 109 South Madison Street in Evansville, WI 53536.

Does Dr. John C. Gernetzke accept patients with MercyCare Health Plans?

Yes, Dr. John C. Gernetzke is listed in-network for MercyCare Health Plans through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.

Does Dr. John C. Gernetzke have affiliation with practices?

Dr. John C. Gernetzke is affiliated with The Grove Family Dental & TMJ Clinic.