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“I strive to put patients at ease, listen to their problems and provide individualized options that work for them.”​


Marshfield - Marshfield Medical Center

1000 N Oak Ave
Marshfield, WI 54449

Also sees patients at:
Wausau Center | Weston Center

Appointment Phone:
1-715-387-5301

Provider Bio down arrow

Dr. John Hayes concentrates his cardiology practice on diagnosing and treating patients with heart rhythm disturbances. “It’s a pleasure to provide people with quality care and improve their health,” he said.

He came to Marshfield Clinic in 1991, attracted by its high-quality practice, the community’s family-oriented environment and positive feedback from patients who had been referred to Mayo Clinic during his residency there.

Dr. Hayes earned his medical degree at Rush University Medical Center-Rush Medical College, Chicago. He completed his residency in internal medicine at the Mayo School of Graduate Medical Education, Rochester, Minnesota; and a fellowship in cardiology and electrophysiology at the University of Washington, Seattle.

Dr. Hayes is board-certified in internal medicine, cardiovascular disease and clinical cardiac electrophysiology, and is a Fellow of the American College of Cardiology and the Heart Rhythm Society.

He and his wife have three children. He enjoys fitness activities such as running, bicycling and basketball.

Professional Summary down arrow

  • Medical School
    Rush University Medical Center - Rush Medical College Chicago, IL, United States, M.D. 1985

    Residency
    Mayo School of Graduate Medical Education Rochester, MN, United States, Internal Medicine 1988

    Fellowship
    University of Washington - School of Medicine Seattle, WA, United States, Cardiology 1991

  • Professional Societies
    American College of Cardiology North American Society of Pacing & Electrophysiology Wisconsin Medical Society

    Board Certifications
    Cardiac Electrophysiology: 1992, recertified 2013 Cardiovascular Disease: 1991, recertified 2013 Internal Medicine: 1988

    State Licenses
    Wisconsin

    Make a patient referral

Patient Ratings down arrow

4.8
out of 5 (132 ratings, 17 comments)
4.8
Provider friendliness
4.8
Provider explanations of my problem
4.8
Provider concern for my questions
4.8
Provider's efforts to include me in treatment decisions
4.7
Provider's medication information
4.8
Provider's follow-up care instructions
4.8
Provider's use of words I understood
4.7
Provider's amount of time with me
4.9
My confidence in this provider
4.8
My likelihood of recommending this provider

Patient Comments down arrow

Comments are also gathered from the Press Ganey patient satisfaction survey and displayed in their entirety with the exception of any language that may be considered slander, libel or contain private health information, which will be removed prior to publishing.
Sort by:
March 21, 2017
Dr. Hayes is wonderful. Very caring & compassionate. Takes the time & truly listens. A GREAT cardiologist!!
May 03, 2017
Have recommended Dr. Hayes to many people, including my wife who was very pleased with the care she received.
July 21, 2017
Dr. Hayes is an excellent cardiologist - always takes the time to explain and to listen to my concerns.
August 14, 2017
Dr. Hayes is a very caring dr. (cardiologist). Very friendly. Answered questions and most important LOOKS AT THE PATIENT & LISTENS, not at the laptop. Listens well to your concerns. Includes YOU in...view full comment
October 12, 2017
Dr. Hayes gives excellent care.
November 06, 2017
Very good.
November 06, 2017
Impressive knowledge of problem
December 28, 2017
Dr. Hayes was very good explaining things. He was concerned about my cholesterol, I said I would sent a copy to him. I did and after he read it. [...]called me and said dr. said excellent. Continue 1/2... .
January 03, 2018
Dr. Hayes is very helpful and knowledgeable!
January 15, 2018
Dr. Hayes and [...]are always thorough and very caring.
January 23, 2018
I am very confident with Dr. Hayes.
February 08, 2018
Dr. Hayes explained things to me in a way I could understand.
February 15, 2018
Excellent dr. Gentle, caring nature. Explains care, tests, etc. Explained about medications well. Seems to really listen to your concerns & questions.
August 08, 2017
Dr. Hayes has become my cardiologist since[...] has retired (whom I saw for 30 yrs). I'm adjusting to the switch but sure miss the history I had w/[...].
September 02, 2017
Was like a master in his field
June 01, 2017
Trust his expertise -
July 21, 2017
Dr. Hayes-[...]we live lots of mile away - so not available to get back to him. He's a great doctor.
July 21, 2017
Dr. Hayes-[...]we live lots of mile away - so not available to get back to him. He's a great doctor.
June 01, 2017
Trust his expertise -
September 02, 2017
Was like a master in his field
August 08, 2017
Dr. Hayes has become my cardiologist since[...] has retired (whom I saw for 30 yrs). I'm adjusting to the switch but sure miss the history I had w/[...].
March 21, 2017
Dr. Hayes is wonderful. Very caring & compassionate. Takes the time & truly listens. A GREAT cardiologist!!
May 03, 2017
Have recommended Dr. Hayes to many people, including my wife who was very pleased with the care she received.
July 21, 2017
Dr. Hayes is an excellent cardiologist - always takes the time to explain and to listen to my concerns.
August 14, 2017
Dr. Hayes is a very caring dr. (cardiologist). Very friendly. Answered questions and most important LOOKS AT THE PATIENT & LISTENS, not at the laptop. Listens well to your concerns. Includes YOU in...view full comment
October 12, 2017
Dr. Hayes gives excellent care.
November 06, 2017
Very good.
November 06, 2017
Impressive knowledge of problem
December 28, 2017
Dr. Hayes was very good explaining things. He was concerned about my cholesterol, I said I would sent a copy to him. I did and after he read it. [...]called me and said dr. said excellent. Continue 1/2... .
January 03, 2018
Dr. Hayes is very helpful and knowledgeable!
January 15, 2018
Dr. Hayes and [...]are always thorough and very caring.
January 23, 2018
I am very confident with Dr. Hayes.
February 08, 2018
Dr. Hayes explained things to me in a way I could understand.
February 15, 2018
Excellent dr. Gentle, caring nature. Explains care, tests, etc. Explained about medications well. Seems to really listen to your concerns & questions.
March 21, 2017
Dr. Hayes is wonderful. Very caring & compassionate. Takes the time & truly listens. A GREAT cardiologist!!
May 03, 2017
Have recommended Dr. Hayes to many people, including my wife who was very pleased with the care she received.
June 01, 2017
Trust his expertise -
July 21, 2017
Dr. Hayes-[...]we live lots of mile away - so not available to get back to him. He's a great doctor.
July 21, 2017
Dr. Hayes is an excellent cardiologist - always takes the time to explain and to listen to my concerns.
August 08, 2017
Dr. Hayes has become my cardiologist since[...] has retired (whom I saw for 30 yrs). I'm adjusting to the switch but sure miss the history I had w/[...].
August 14, 2017
Dr. Hayes is a very caring dr. (cardiologist). Very friendly. Answered questions and most important LOOKS AT THE PATIENT & LISTENS, not at the laptop. Listens well to your concerns. Includes YOU in...view full comment
September 02, 2017
Was like a master in his field
October 12, 2017
Dr. Hayes gives excellent care.
November 06, 2017
Very good.
November 06, 2017
Impressive knowledge of problem
December 28, 2017
Dr. Hayes was very good explaining things. He was concerned about my cholesterol, I said I would sent a copy to him. I did and after he read it. [...]called me and said dr. said excellent. Continue 1/2... .
January 03, 2018
Dr. Hayes is very helpful and knowledgeable!
January 15, 2018
Dr. Hayes and [...]are always thorough and very caring.
January 23, 2018
I am very confident with Dr. Hayes.
February 08, 2018
Dr. Hayes explained things to me in a way I could understand.
February 15, 2018
Excellent dr. Gentle, caring nature. Explains care, tests, etc. Explained about medications well. Seems to really listen to your concerns & questions.
February 15, 2018
Excellent dr. Gentle, caring nature. Explains care, tests, etc. Explained about medications well. Seems to really listen to your concerns & questions.
February 08, 2018
Dr. Hayes explained things to me in a way I could understand.
January 23, 2018
I am very confident with Dr. Hayes.
January 15, 2018
Dr. Hayes and [...]are always thorough and very caring.
January 03, 2018
Dr. Hayes is very helpful and knowledgeable!
December 28, 2017
Dr. Hayes was very good explaining things. He was concerned about my cholesterol, I said I would sent a copy to him. I did and after he read it. [...]called me and said dr. said excellent. Continue 1/2... .
November 06, 2017
Very good.
November 06, 2017
Impressive knowledge of problem
October 12, 2017
Dr. Hayes gives excellent care.
September 02, 2017
Was like a master in his field
August 14, 2017
Dr. Hayes is a very caring dr. (cardiologist). Very friendly. Answered questions and most important LOOKS AT THE PATIENT & LISTENS, not at the laptop. Listens well to your concerns. Includes YOU in...view full comment
August 08, 2017
Dr. Hayes has become my cardiologist since[...] has retired (whom I saw for 30 yrs). I'm adjusting to the switch but sure miss the history I had w/[...].
July 21, 2017
Dr. Hayes-[...]we live lots of mile away - so not available to get back to him. He's a great doctor.
July 21, 2017
Dr. Hayes is an excellent cardiologist - always takes the time to explain and to listen to my concerns.
June 01, 2017
Trust his expertise -
May 03, 2017
Have recommended Dr. Hayes to many people, including my wife who was very pleased with the care she received.
March 21, 2017
Dr. Hayes is wonderful. Very caring & compassionate. Takes the time & truly listens. A GREAT cardiologist!!