Summary

Dr. John Johnkoski treats aortic valve stenosis, coronary artery disease, and coronary artery disease in women, and performs mitral valve replacement surgery and cardiac rehabilitation. He practices thoracic surgery and vascular surgery and has 38 years of experience. Dr. Johnkoski is affiliated with Aspirus Wausau Hospital and sees patients in Wausau and Merrill, Wisconsin. He earned his medical degree from the University of Michigan Medical School and speaks English and Spanish. Patients on Vitals rate Dr. Johnkoski 5 out of 5.

Overview based on verified provider data

Quick Facts

  • 5
  • 38 years of experience
  • speaks English, Spanish
  • University Of Michigan Medical School
  • 2 specialties
  • 3 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. John Anthony Johnkoski has 3 locations

Aspirus Heart And Lung Surgery

425 Pine Ridge Blvd Ste 209Wausau, WI 54401
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Aspirus Wausau Hospital

333 Pine Ridge BlvdWausau, WI 54401

Aspirus Merrill Hospital

601 S Center AveMerrill, WI 54452

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Dr. John Anthony Johnkoski, MD
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Dr. John Anthony Johnkoski, MDDr. Thomas B HumphreyDr. Dennis James Costa, MDDr. Benjamin James Herdrich, MD
Thoracic SurgeryThoracic SurgeryVascular SurgeryVascular Surgery
Accepts New Patients Accepts New Patients Accepts New Patients
5 
0 
5 
4 
38 Years of Experience 25 Years of Experience 22 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks English, Spanish Speaks English, Spanish
Wausau , WIWeston , WIWausau , WIWausau , WI
Med School: University Of Michigan Medical School Med School: Medical College Of Wisconsin Med School: University Of Wisconsin School Of Medicine & Public Health
Current Profile
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Insurance Plans Accepted by Dr. John Anthony Johnkoski

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John Anthony Johnkoski has the following 2 specialties

Specialty Expertise

Dr. John Anthony Johnkoski has the following 3 areas of expertise

  • Atrial Fibrillation
  • Lung Cancer
  • Vascular Surgery

Certifications, License, & Education

38 Years Experience

Dr. John Anthony Johnkoski holds an expired medical license in the state of Wisconsin.

Medical License

Medical Doctor with an expired medical license in the state of Wisconsin that expired in 2025.

Education & Training

Medical School

Graduated from University Of Michigan Medical School in 1988.

NPI Number

Dr. Johnkoski's NPI number is 1992737035.

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Frequently Asked Questions

Where is Dr. John Johnkoski's office located?
Dr. John Johnkoski's office is located at 425 Pine Ridge Blvd Ste 209, Wausau, WI, 54401.
Which hospitals is Dr. John Johnkoski affiliated with?
Dr. John Johnkoski is affiliated with Aspirus Wausau Hospital.
How can I make an appointment with Dr. John Johnkoski?
You can find contact information for Dr. John Johnkoski here on Vitals.
Does Dr. John Johnkoski accept my insurance?
You can see the insurance plans that Dr. John Johnkoski accepts on their Vitals profile.
Is Dr. John Johnkoski accepting new patients?
Dr. John Johnkoski has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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